steve/slit-coupling

Slit shaft coupling, long clamping: 12 to 32 mm outside diameter, bores 4 to 14 mm.

v1.0.0 Latest STEVE MIT 0

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Open in STEVE

Isometric

Parameters

Preset40 sizes

Outside diameter5 options

Bore 18 options

Bore 211 options

d1 <= d2, a pair the table offers on the outside diameter chosen.

Detail

fullsimple

full: slits, clamp slits and screw holes. simple: a plain cylinder with the bores.

Defaults built

part.py 52 lines · Python · STEVE runtime · checked

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"""Slit shaft coupling, long clamping type: one aluminium body with slits between two clamping hubs. Axis along Z, an end face on

the XY plane, bore d1 in the lower half of the length, bore d2 in the upper. Fit dimensions from MISUMI's table; see the README."""

import cadquery as cq

from steve import Model

size = 20 # mm Outside diameter D

d1 = 5 # mm Bore 1 (d1 <= d2)

d2 = 8 # mm Bore 2

detail = "full" # full: slits, clamp slits and screw holes; simple: a plain cylinder with the bores

# D: (L, hub length l, clamp screw M, screw offset A, screw from the end F).

# MISUMI Couplings catalogue, Slit Couplings, Clamping, Short/Long, CPLCN columns, https://de.misumi-ec.com/files/images/products/docs/flexibleshaftcouplings.pdf, PDF p. 8.

SIZES = {12: (18.5, 5, 2, 4, 2.5), 16: (23, 6.5, 2.5, 5, 3.25), 20: (26, 7.5, 2.5, 6.5, 3.75), 25: (31, 8.5, 3, 9, 4.25), 32: (41, 12, 4, 11, 6)}

# D: the (d1, d2) pairs the table offers.

PAIRS = {

12: ((4, 4), (4, 5), (5, 5)),

16: ((5, 5), (5, 6), (6, 6)),

20: ((5, 6), (5, 6.35), (5, 8), (6, 6), (6, 6.35), (6, 7), (6, 8), (6.35, 8), (8, 8)),

25: ((5, 6), (6, 6), (6, 6.35), (6, 8), (6, 10), (6.35, 8), (6.35, 10), (8, 8), (8, 9.525), (8, 10), (9.525, 10), (10, 10)),

32: ((8, 8), (8, 9.525), (8, 10), (8, 12), (9.525, 10), (9.525, 12), (10, 10), (10, 11), (10, 12), (10, 14), (12, 12), (12, 14)),

}

L, hub, screw, A, F = SIZES[size]

if (d1, d2) not in PAIRS[size]:

raise ValueError(f"The {size} mm slit coupling offers bores {PAIRS[size]}.")

R = size / 2

SLITS = 4 # the number of slits, their width and depth and the clamp slit's width are proportions, for looks

WIDTH = 0.05 * size

WEB = 0.3 * R

body = cq.Workplane("XY").circle(R).extrude(L)

body = body.cut(cq.Workplane("XY").workplane(offset=-1).circle(d1 / 2).extrude(L / 2 + 1))

body = body.cut(cq.Workplane("XY").workplane(offset=L / 2).circle(d2 / 2).extrude(L / 2 + 1))

if detail == "full":

step = (L - 2 * hub) / (SLITS + 1)

for k in range(SLITS):

z = hub + (k + 1) * step - WIDTH / 2

for sign in (-1, 1):

# two cuts from opposite sides leave a thin web, turned a quarter turn at each slit

offset = sign * (R + WEB)

box = cq.Workplane("XY").workplane(offset=z).center(offset, 0).rect(2 * R, 2 * R + 2).extrude(WIDTH)

if k % 2:

box = box.rotate((0, 0, 0), (0, 0, 1), 90)

body = body.cut(box)

for z0, height in ((-1, hub + 1), (L - hub, hub + 1)):

body = body.cut(cq.Workplane("XY").workplane(offset=z0).center(R / 2 + 0.5, 0).rect(R + 1, WIDTH).extrude(height))

for z in (F, L - F):

body = body.cut(cq.Workplane("YZ").center(A, z).circle(screw / 2).extrude(R + 1, both=True))

model = Model()

model.add("body", body, name="Slit coupling")

model.material("aluminum-generic", color="#c9ccd1")

result = model.result()

"""Slit shaft coupling, long clamping type: one aluminium body with slits between two clamping hubs. Axis along Z, an end face on
the XY plane, bore d1 in the lower half of the length, bore d2 in the upper. Fit dimensions from MISUMI's table; see the README."""
import cadquery as cq
from steve import Model

size = 20  # mm Outside diameter D
d1 = 5  # mm Bore 1 (d1 <= d2)
d2 = 8  # mm Bore 2
detail = "full"  # full: slits, clamp slits and screw holes; simple: a plain cylinder with the bores

# D: (L, hub length l, clamp screw M, screw offset A, screw from the end F).
# MISUMI Couplings catalogue, Slit Couplings, Clamping, Short/Long, CPLCN columns, https://de.misumi-ec.com/files/images/products/docs/flexibleshaftcouplings.pdf, PDF p. 8.
SIZES = {12: (18.5, 5, 2, 4, 2.5), 16: (23, 6.5, 2.5, 5, 3.25), 20: (26, 7.5, 2.5, 6.5, 3.75), 25: (31, 8.5, 3, 9, 4.25), 32: (41, 12, 4, 11, 6)}
# D: the (d1, d2) pairs the table offers.
PAIRS = {
    12: ((4, 4), (4, 5), (5, 5)),
    16: ((5, 5), (5, 6), (6, 6)),
    20: ((5, 6), (5, 6.35), (5, 8), (6, 6), (6, 6.35), (6, 7), (6, 8), (6.35, 8), (8, 8)),
    25: ((5, 6), (6, 6), (6, 6.35), (6, 8), (6, 10), (6.35, 8), (6.35, 10), (8, 8), (8, 9.525), (8, 10), (9.525, 10), (10, 10)),
    32: ((8, 8), (8, 9.525), (8, 10), (8, 12), (9.525, 10), (9.525, 12), (10, 10), (10, 11), (10, 12), (10, 14), (12, 12), (12, 14)),
}
L, hub, screw, A, F = SIZES[size]
if (d1, d2) not in PAIRS[size]:
    raise ValueError(f"The {size} mm slit coupling offers bores {PAIRS[size]}.")
R = size / 2
SLITS = 4   # the number of slits, their width and depth and the clamp slit's width are proportions, for looks
WIDTH = 0.05 * size
WEB = 0.3 * R

body = cq.Workplane("XY").circle(R).extrude(L)
body = body.cut(cq.Workplane("XY").workplane(offset=-1).circle(d1 / 2).extrude(L / 2 + 1))
body = body.cut(cq.Workplane("XY").workplane(offset=L / 2).circle(d2 / 2).extrude(L / 2 + 1))
if detail == "full":
    step = (L - 2 * hub) / (SLITS + 1)
    for k in range(SLITS):
        z = hub + (k + 1) * step - WIDTH / 2
        for sign in (-1, 1):
            # two cuts from opposite sides leave a thin web, turned a quarter turn at each slit
            offset = sign * (R + WEB)
            box = cq.Workplane("XY").workplane(offset=z).center(offset, 0).rect(2 * R, 2 * R + 2).extrude(WIDTH)
            if k % 2:
                box = box.rotate((0, 0, 0), (0, 0, 1), 90)
            body = body.cut(box)
    for z0, height in ((-1, hub + 1), (L - hub, hub + 1)):
        body = body.cut(cq.Workplane("XY").workplane(offset=z0).center(R / 2 + 0.5, 0).rect(R + 1, WIDTH).extrude(height))
    for z in (F, L - F):
        body = body.cut(cq.Workplane("YZ").center(A, z).circle(screw / 2).extrude(R + 1, both=True))
model = Model()
model.add("body", body, name="Slit coupling")
model.material("aluminum-generic", color="#c9ccd1")
result = model.result()

pypart.toml 37 lines · TOML

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name = "steve/slit-coupling"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Slit shaft coupling, long clamping: 12 to 32 mm outside diameter, bores 4 to 14 mm."

description = """Slit shaft coupling, long clamping type, one aluminium body with slits between two clamping hubs. Sizes and bore pairs from MISUMI's CPLCN table. See the README."""

tags = ["coupling", "shaft-coupling", "slit-coupling", "power-transmission", "metric"]

[parameters.size]

type = "choice"

default = 20

choices = [12, 16, 20, 25, 32]

unit = "mm"

label = "Outside diameter"

[parameters.d1]

type = "choice"

default = 5

choices = [4, 5, 6, 6.35, 8, 9.525, 10, 12]

unit = "mm"

label = "Bore 1"

[parameters.d2]

type = "choice"

default = 8

choices = [4, 5, 6, 6.35, 7, 8, 9.525, 10, 11, 12, 14]

unit = "mm"

label = "Bore 2"

description = "d1 <= d2, a pair the table offers on the outside diameter chosen."

[parameters.detail]

type = "choice"

default = "full"

choices = ["full", "simple"]

label = "Detail"

description = "full: slits, clamp slits and screw holes. simple: a plain cylinder with the bores."

name = "steve/slit-coupling"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Slit shaft coupling, long clamping: 12 to 32 mm outside diameter, bores 4 to 14 mm."
description = """Slit shaft coupling, long clamping type, one aluminium body with slits between two clamping hubs. Sizes and bore pairs from MISUMI's CPLCN table. See the README."""
tags = ["coupling", "shaft-coupling", "slit-coupling", "power-transmission", "metric"]

[parameters.size]
type = "choice"
default = 20
choices = [12, 16, 20, 25, 32]
unit = "mm"
label = "Outside diameter"

[parameters.d1]
type = "choice"
default = 5
choices = [4, 5, 6, 6.35, 8, 9.525, 10, 12]
unit = "mm"
label = "Bore 1"

[parameters.d2]
type = "choice"
default = 8
choices = [4, 5, 6, 6.35, 7, 8, 9.525, 10, 11, 12, 14]
unit = "mm"
label = "Bore 2"
description = "d1 <= d2, a pair the table offers on the outside diameter chosen."

[parameters.detail]
type = "choice"
default = "full"
choices = ["full", "simple"]
label = "Detail"
description = "full: slits, clamp slits and screw holes. simple: a plain cylinder with the bores."

presets.toml 282 lines · TOML

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# Presets of this part (factory/PRESETS.md). Written by factory/gen.py.

[[presets]]

id = "CPLCN12-4-4"

title = "Slit coupling D12, 4 to 4 mm"

params = { size = 12, d1 = 4, d2 = 4 }

aliases = ["4x4 slit coupling", "4 to 4 slit coupling", "4mm to 4mm slit coupling", "4-4 slit coupling", "CPLCN12", "D12 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN12-4-5"

title = "Slit coupling D12, 4 to 5 mm"

params = { size = 12, d1 = 4, d2 = 5 }

aliases = ["4x5 slit coupling", "4 to 5 slit coupling", "4mm to 5mm slit coupling", "4-5 slit coupling", "CPLCN12", "D12 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN12-5-5"

title = "Slit coupling D12, 5 to 5 mm"

params = { size = 12, d1 = 5, d2 = 5 }

aliases = ["5x5 slit coupling", "5 to 5 slit coupling", "5mm to 5mm slit coupling", "5-5 slit coupling", "CPLCN12", "D12 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN16-5-5"

title = "Slit coupling D16, 5 to 5 mm"

params = { size = 16, d1 = 5, d2 = 5 }

aliases = ["5x5 slit coupling", "5 to 5 slit coupling", "5mm to 5mm slit coupling", "5-5 slit coupling", "CPLCN16", "D16 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN16-5-6"

title = "Slit coupling D16, 5 to 6 mm"

params = { size = 16, d1 = 5, d2 = 6 }

aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN16", "D16 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN16-6-6"

title = "Slit coupling D16, 6 to 6 mm"

params = { size = 16, d1 = 6, d2 = 6 }

aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN16", "D16 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-5-6"

title = "Slit coupling D20, 5 to 6 mm"

params = { size = 20, d1 = 5, d2 = 6 }

aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-5-6.35"

title = "Slit coupling D20, 5 to 6.35 mm"

params = { size = 20, d1 = 5, d2 = 6.35 }

aliases = ["5x6.35 slit coupling", "5 to 6.35 slit coupling", "5mm to 6.35mm slit coupling", "5-6.35 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-5-8"

title = "Slit coupling D20, 5 to 8 mm"

params = { size = 20, d1 = 5, d2 = 8 }

aliases = ["5x8 slit coupling", "5 to 8 slit coupling", "5mm to 8mm slit coupling", "5-8 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-6-6"

title = "Slit coupling D20, 6 to 6 mm"

params = { size = 20, d1 = 6, d2 = 6 }

aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-6-6.35"

title = "Slit coupling D20, 6 to 6.35 mm"

params = { size = 20, d1 = 6, d2 = 6.35 }

aliases = ["6x6.35 slit coupling", "6 to 6.35 slit coupling", "6mm to 6.35mm slit coupling", "6-6.35 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-6-7"

title = "Slit coupling D20, 6 to 7 mm"

params = { size = 20, d1 = 6, d2 = 7 }

aliases = ["6x7 slit coupling", "6 to 7 slit coupling", "6mm to 7mm slit coupling", "6-7 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-6-8"

title = "Slit coupling D20, 6 to 8 mm"

params = { size = 20, d1 = 6, d2 = 8 }

aliases = ["6x8 slit coupling", "6 to 8 slit coupling", "6mm to 8mm slit coupling", "6-8 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

[[presets]]

id = "CPLCN20-6.35-8"

title = "Slit coupling D20, 6.35 to 8 mm"

params = { size = 20, d1 = 6.35, d2 = 8 }

aliases = ["6.35x8 slit coupling", "6.35 to 8 slit coupling", "6.35mm to 8mm slit coupling", "6.35-8 slit coupling", "CPLCN20", "D20 slit coupling"]

standard = "MISUMI"

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[[presets]]

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id = "CPLCN20-8-8"

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title = "Slit coupling D20, 8 to 8 mm"

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params = { size = 20, d1 = 8, d2 = 8 }

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aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN20", "D20 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-5-6"

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title = "Slit coupling D25, 5 to 6 mm"

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params = { size = 25, d1 = 5, d2 = 6 }

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aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6-6"

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title = "Slit coupling D25, 6 to 6 mm"

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params = { size = 25, d1 = 6, d2 = 6 }

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aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6-6.35"

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title = "Slit coupling D25, 6 to 6.35 mm"

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params = { size = 25, d1 = 6, d2 = 6.35 }

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aliases = ["6x6.35 slit coupling", "6 to 6.35 slit coupling", "6mm to 6.35mm slit coupling", "6-6.35 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6-8"

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title = "Slit coupling D25, 6 to 8 mm"

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params = { size = 25, d1 = 6, d2 = 8 }

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aliases = ["6x8 slit coupling", "6 to 8 slit coupling", "6mm to 8mm slit coupling", "6-8 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6-10"

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title = "Slit coupling D25, 6 to 10 mm"

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params = { size = 25, d1 = 6, d2 = 10 }

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aliases = ["6x10 slit coupling", "6 to 10 slit coupling", "6mm to 10mm slit coupling", "6-10 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6.35-8"

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title = "Slit coupling D25, 6.35 to 8 mm"

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params = { size = 25, d1 = 6.35, d2 = 8 }

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aliases = ["6.35x8 slit coupling", "6.35 to 8 slit coupling", "6.35mm to 8mm slit coupling", "6.35-8 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-6.35-10"

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title = "Slit coupling D25, 6.35 to 10 mm"

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params = { size = 25, d1 = 6.35, d2 = 10 }

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aliases = ["6.35x10 slit coupling", "6.35 to 10 slit coupling", "6.35mm to 10mm slit coupling", "6.35-10 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-8-8"

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title = "Slit coupling D25, 8 to 8 mm"

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params = { size = 25, d1 = 8, d2 = 8 }

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aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-8-9.525"

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title = "Slit coupling D25, 8 to 9.525 mm"

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params = { size = 25, d1 = 8, d2 = 9.525 }

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aliases = ["8x9.525 slit coupling", "8 to 9.525 slit coupling", "8mm to 9.525mm slit coupling", "8-9.525 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-8-10"

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title = "Slit coupling D25, 8 to 10 mm"

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params = { size = 25, d1 = 8, d2 = 10 }

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aliases = ["8x10 slit coupling", "8 to 10 slit coupling", "8mm to 10mm slit coupling", "8-10 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-9.525-10"

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title = "Slit coupling D25, 9.525 to 10 mm"

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params = { size = 25, d1 = 9.525, d2 = 10 }

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aliases = ["9.525x10 slit coupling", "9.525 to 10 slit coupling", "9.525mm to 10mm slit coupling", "9.525-10 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN25-10-10"

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title = "Slit coupling D25, 10 to 10 mm"

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params = { size = 25, d1 = 10, d2 = 10 }

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aliases = ["10x10 slit coupling", "10 to 10 slit coupling", "10mm to 10mm slit coupling", "10-10 slit coupling", "CPLCN25", "D25 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-8-8"

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title = "Slit coupling D32, 8 to 8 mm"

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params = { size = 32, d1 = 8, d2 = 8 }

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aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-8-9.525"

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title = "Slit coupling D32, 8 to 9.525 mm"

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params = { size = 32, d1 = 8, d2 = 9.525 }

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aliases = ["8x9.525 slit coupling", "8 to 9.525 slit coupling", "8mm to 9.525mm slit coupling", "8-9.525 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-8-10"

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title = "Slit coupling D32, 8 to 10 mm"

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params = { size = 32, d1 = 8, d2 = 10 }

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aliases = ["8x10 slit coupling", "8 to 10 slit coupling", "8mm to 10mm slit coupling", "8-10 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-8-12"

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title = "Slit coupling D32, 8 to 12 mm"

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params = { size = 32, d1 = 8, d2 = 12 }

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aliases = ["8x12 slit coupling", "8 to 12 slit coupling", "8mm to 12mm slit coupling", "8-12 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-9.525-10"

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title = "Slit coupling D32, 9.525 to 10 mm"

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params = { size = 32, d1 = 9.525, d2 = 10 }

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aliases = ["9.525x10 slit coupling", "9.525 to 10 slit coupling", "9.525mm to 10mm slit coupling", "9.525-10 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-9.525-12"

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title = "Slit coupling D32, 9.525 to 12 mm"

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params = { size = 32, d1 = 9.525, d2 = 12 }

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aliases = ["9.525x12 slit coupling", "9.525 to 12 slit coupling", "9.525mm to 12mm slit coupling", "9.525-12 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-10-10"

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title = "Slit coupling D32, 10 to 10 mm"

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params = { size = 32, d1 = 10, d2 = 10 }

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aliases = ["10x10 slit coupling", "10 to 10 slit coupling", "10mm to 10mm slit coupling", "10-10 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-10-11"

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title = "Slit coupling D32, 10 to 11 mm"

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params = { size = 32, d1 = 10, d2 = 11 }

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aliases = ["10x11 slit coupling", "10 to 11 slit coupling", "10mm to 11mm slit coupling", "10-11 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-10-12"

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title = "Slit coupling D32, 10 to 12 mm"

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params = { size = 32, d1 = 10, d2 = 12 }

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aliases = ["10x12 slit coupling", "10 to 12 slit coupling", "10mm to 12mm slit coupling", "10-12 slit coupling", "CPLCN32", "D32 slit coupling"]

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standard = "MISUMI"

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[[presets]]

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id = "CPLCN32-10-14"

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title = "Slit coupling D32, 10 to 14 mm"

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params = { size = 32, d1 = 10, d2 = 14 }

259

aliases = ["10x14 slit coupling", "10 to 14 slit coupling", "10mm to 14mm slit coupling", "10-14 slit coupling", "CPLCN32", "D32 slit coupling"]

260

standard = "MISUMI"

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[[presets]]

263

id = "CPLCN32-12-12"

264

title = "Slit coupling D32, 12 to 12 mm"

265

params = { size = 32, d1 = 12, d2 = 12 }

266

aliases = ["12x12 slit coupling", "12 to 12 slit coupling", "12mm to 12mm slit coupling", "12-12 slit coupling", "CPLCN32", "D32 slit coupling"]

267

standard = "MISUMI"

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[[presets]]

270

id = "CPLCN32-12-14"

271

title = "Slit coupling D32, 12 to 14 mm"

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params = { size = 32, d1 = 12, d2 = 14 }

273

aliases = ["12x14 slit coupling", "12 to 14 slit coupling", "12mm to 14mm slit coupling", "12-14 slit coupling", "CPLCN32", "D32 slit coupling"]

274

standard = "MISUMI"

275

276

[[presets]]

277

id = "CPLCN20-5-8-simple"

278

title = "Slit coupling D20, 5 to 8 mm, simple"

279

params = { size = 20, d1 = 5, d2 = 8, detail = "simple" }

280

aliases = ["CPLCN20-5-8 simple"]

281

standard = "MISUMI"

282

# Presets of this part (factory/PRESETS.md). Written by factory/gen.py.

[[presets]]
id = "CPLCN12-4-4"
title = "Slit coupling D12, 4 to 4 mm"
params = { size = 12, d1 = 4, d2 = 4 }
aliases = ["4x4 slit coupling", "4 to 4 slit coupling", "4mm to 4mm slit coupling", "4-4 slit coupling", "CPLCN12", "D12 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN12-4-5"
title = "Slit coupling D12, 4 to 5 mm"
params = { size = 12, d1 = 4, d2 = 5 }
aliases = ["4x5 slit coupling", "4 to 5 slit coupling", "4mm to 5mm slit coupling", "4-5 slit coupling", "CPLCN12", "D12 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN12-5-5"
title = "Slit coupling D12, 5 to 5 mm"
params = { size = 12, d1 = 5, d2 = 5 }
aliases = ["5x5 slit coupling", "5 to 5 slit coupling", "5mm to 5mm slit coupling", "5-5 slit coupling", "CPLCN12", "D12 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN16-5-5"
title = "Slit coupling D16, 5 to 5 mm"
params = { size = 16, d1 = 5, d2 = 5 }
aliases = ["5x5 slit coupling", "5 to 5 slit coupling", "5mm to 5mm slit coupling", "5-5 slit coupling", "CPLCN16", "D16 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN16-5-6"
title = "Slit coupling D16, 5 to 6 mm"
params = { size = 16, d1 = 5, d2 = 6 }
aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN16", "D16 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN16-6-6"
title = "Slit coupling D16, 6 to 6 mm"
params = { size = 16, d1 = 6, d2 = 6 }
aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN16", "D16 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-5-6"
title = "Slit coupling D20, 5 to 6 mm"
params = { size = 20, d1 = 5, d2 = 6 }
aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-5-6.35"
title = "Slit coupling D20, 5 to 6.35 mm"
params = { size = 20, d1 = 5, d2 = 6.35 }
aliases = ["5x6.35 slit coupling", "5 to 6.35 slit coupling", "5mm to 6.35mm slit coupling", "5-6.35 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-5-8"
title = "Slit coupling D20, 5 to 8 mm"
params = { size = 20, d1 = 5, d2 = 8 }
aliases = ["5x8 slit coupling", "5 to 8 slit coupling", "5mm to 8mm slit coupling", "5-8 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-6-6"
title = "Slit coupling D20, 6 to 6 mm"
params = { size = 20, d1 = 6, d2 = 6 }
aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-6-6.35"
title = "Slit coupling D20, 6 to 6.35 mm"
params = { size = 20, d1 = 6, d2 = 6.35 }
aliases = ["6x6.35 slit coupling", "6 to 6.35 slit coupling", "6mm to 6.35mm slit coupling", "6-6.35 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-6-7"
title = "Slit coupling D20, 6 to 7 mm"
params = { size = 20, d1 = 6, d2 = 7 }
aliases = ["6x7 slit coupling", "6 to 7 slit coupling", "6mm to 7mm slit coupling", "6-7 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-6-8"
title = "Slit coupling D20, 6 to 8 mm"
params = { size = 20, d1 = 6, d2 = 8 }
aliases = ["6x8 slit coupling", "6 to 8 slit coupling", "6mm to 8mm slit coupling", "6-8 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-6.35-8"
title = "Slit coupling D20, 6.35 to 8 mm"
params = { size = 20, d1 = 6.35, d2 = 8 }
aliases = ["6.35x8 slit coupling", "6.35 to 8 slit coupling", "6.35mm to 8mm slit coupling", "6.35-8 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-8-8"
title = "Slit coupling D20, 8 to 8 mm"
params = { size = 20, d1 = 8, d2 = 8 }
aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN20", "D20 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-5-6"
title = "Slit coupling D25, 5 to 6 mm"
params = { size = 25, d1 = 5, d2 = 6 }
aliases = ["5x6 slit coupling", "5 to 6 slit coupling", "5mm to 6mm slit coupling", "5-6 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6-6"
title = "Slit coupling D25, 6 to 6 mm"
params = { size = 25, d1 = 6, d2 = 6 }
aliases = ["6x6 slit coupling", "6 to 6 slit coupling", "6mm to 6mm slit coupling", "6-6 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6-6.35"
title = "Slit coupling D25, 6 to 6.35 mm"
params = { size = 25, d1 = 6, d2 = 6.35 }
aliases = ["6x6.35 slit coupling", "6 to 6.35 slit coupling", "6mm to 6.35mm slit coupling", "6-6.35 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6-8"
title = "Slit coupling D25, 6 to 8 mm"
params = { size = 25, d1 = 6, d2 = 8 }
aliases = ["6x8 slit coupling", "6 to 8 slit coupling", "6mm to 8mm slit coupling", "6-8 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6-10"
title = "Slit coupling D25, 6 to 10 mm"
params = { size = 25, d1 = 6, d2 = 10 }
aliases = ["6x10 slit coupling", "6 to 10 slit coupling", "6mm to 10mm slit coupling", "6-10 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6.35-8"
title = "Slit coupling D25, 6.35 to 8 mm"
params = { size = 25, d1 = 6.35, d2 = 8 }
aliases = ["6.35x8 slit coupling", "6.35 to 8 slit coupling", "6.35mm to 8mm slit coupling", "6.35-8 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-6.35-10"
title = "Slit coupling D25, 6.35 to 10 mm"
params = { size = 25, d1 = 6.35, d2 = 10 }
aliases = ["6.35x10 slit coupling", "6.35 to 10 slit coupling", "6.35mm to 10mm slit coupling", "6.35-10 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-8-8"
title = "Slit coupling D25, 8 to 8 mm"
params = { size = 25, d1 = 8, d2 = 8 }
aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-8-9.525"
title = "Slit coupling D25, 8 to 9.525 mm"
params = { size = 25, d1 = 8, d2 = 9.525 }
aliases = ["8x9.525 slit coupling", "8 to 9.525 slit coupling", "8mm to 9.525mm slit coupling", "8-9.525 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-8-10"
title = "Slit coupling D25, 8 to 10 mm"
params = { size = 25, d1 = 8, d2 = 10 }
aliases = ["8x10 slit coupling", "8 to 10 slit coupling", "8mm to 10mm slit coupling", "8-10 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-9.525-10"
title = "Slit coupling D25, 9.525 to 10 mm"
params = { size = 25, d1 = 9.525, d2 = 10 }
aliases = ["9.525x10 slit coupling", "9.525 to 10 slit coupling", "9.525mm to 10mm slit coupling", "9.525-10 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN25-10-10"
title = "Slit coupling D25, 10 to 10 mm"
params = { size = 25, d1 = 10, d2 = 10 }
aliases = ["10x10 slit coupling", "10 to 10 slit coupling", "10mm to 10mm slit coupling", "10-10 slit coupling", "CPLCN25", "D25 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-8-8"
title = "Slit coupling D32, 8 to 8 mm"
params = { size = 32, d1 = 8, d2 = 8 }
aliases = ["8x8 slit coupling", "8 to 8 slit coupling", "8mm to 8mm slit coupling", "8-8 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-8-9.525"
title = "Slit coupling D32, 8 to 9.525 mm"
params = { size = 32, d1 = 8, d2 = 9.525 }
aliases = ["8x9.525 slit coupling", "8 to 9.525 slit coupling", "8mm to 9.525mm slit coupling", "8-9.525 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-8-10"
title = "Slit coupling D32, 8 to 10 mm"
params = { size = 32, d1 = 8, d2 = 10 }
aliases = ["8x10 slit coupling", "8 to 10 slit coupling", "8mm to 10mm slit coupling", "8-10 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-8-12"
title = "Slit coupling D32, 8 to 12 mm"
params = { size = 32, d1 = 8, d2 = 12 }
aliases = ["8x12 slit coupling", "8 to 12 slit coupling", "8mm to 12mm slit coupling", "8-12 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-9.525-10"
title = "Slit coupling D32, 9.525 to 10 mm"
params = { size = 32, d1 = 9.525, d2 = 10 }
aliases = ["9.525x10 slit coupling", "9.525 to 10 slit coupling", "9.525mm to 10mm slit coupling", "9.525-10 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-9.525-12"
title = "Slit coupling D32, 9.525 to 12 mm"
params = { size = 32, d1 = 9.525, d2 = 12 }
aliases = ["9.525x12 slit coupling", "9.525 to 12 slit coupling", "9.525mm to 12mm slit coupling", "9.525-12 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-10-10"
title = "Slit coupling D32, 10 to 10 mm"
params = { size = 32, d1 = 10, d2 = 10 }
aliases = ["10x10 slit coupling", "10 to 10 slit coupling", "10mm to 10mm slit coupling", "10-10 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-10-11"
title = "Slit coupling D32, 10 to 11 mm"
params = { size = 32, d1 = 10, d2 = 11 }
aliases = ["10x11 slit coupling", "10 to 11 slit coupling", "10mm to 11mm slit coupling", "10-11 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-10-12"
title = "Slit coupling D32, 10 to 12 mm"
params = { size = 32, d1 = 10, d2 = 12 }
aliases = ["10x12 slit coupling", "10 to 12 slit coupling", "10mm to 12mm slit coupling", "10-12 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-10-14"
title = "Slit coupling D32, 10 to 14 mm"
params = { size = 32, d1 = 10, d2 = 14 }
aliases = ["10x14 slit coupling", "10 to 14 slit coupling", "10mm to 14mm slit coupling", "10-14 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-12-12"
title = "Slit coupling D32, 12 to 12 mm"
params = { size = 32, d1 = 12, d2 = 12 }
aliases = ["12x12 slit coupling", "12 to 12 slit coupling", "12mm to 12mm slit coupling", "12-12 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN32-12-14"
title = "Slit coupling D32, 12 to 14 mm"
params = { size = 32, d1 = 12, d2 = 14 }
aliases = ["12x14 slit coupling", "12 to 14 slit coupling", "12mm to 14mm slit coupling", "12-14 slit coupling", "CPLCN32", "D32 slit coupling"]
standard = "MISUMI"

[[presets]]
id = "CPLCN20-5-8-simple"
title = "Slit coupling D20, 5 to 8 mm, simple"
params = { size = 20, d1 = 5, d2 = 8, detail = "simple" }
aliases = ["CPLCN20-5-8 simple"]
standard = "MISUMI"

README.md 14 lines · Markdown

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Slit coupling

A long, clamping slit shaft coupling: one aluminium body with slits between two clamping hubs. Axis along Z, an end face on the XY plane, bore d1 in the lower half of the length and d2 in the upper.

A slit coupling is not a helical beam coupling, which is a different part.

Source

MISUMI Couplings catalogue, Slit Couplings, Clamping, Short/Long, CPLCN columns, https://de.misumi-ec.com/files/images/products/docs/flexibleshaftcouplings.pdf, PDF page 8: outside diameter D, length L, hub length l, screw M, positions A and F, and the bore pairs offered on each size.

Every pair the table offers on these sizes is a preset. The 40 mm size has a different hub and isn't here.

Proportions, for looks only: how many slits, their width and depth, and the clamp slit's width. The table doesn't dimension them, so don't read stiffness from this model. The screws aren't modelled, only their holes at nominal M.

# Slit coupling

A long, clamping slit shaft coupling: one aluminium body with slits between two clamping hubs. Axis along Z, an end face on the XY plane, bore d1 in the lower half of the length and d2 in the upper.

A slit coupling is not a helical beam coupling, which is a different part.

## Source

MISUMI Couplings catalogue, *Slit Couplings, Clamping, Short/Long*, CPLCN columns, <https://de.misumi-ec.com/files/images/products/docs/flexibleshaftcouplings.pdf>, PDF page 8: outside diameter D, length L, hub length l, screw M, positions A and F, and the bore pairs offered on each size.

Every pair the table offers on these sizes is a preset. The 40 mm size has a different hub and isn't here.

**Proportions, for looks only:** how many slits, their width and depth, and the clamp slit's width. The table doesn't dimension them, so don't read stiffness from this model. The screws aren't modelled, only their holes at nominal M.

Use this part

STEVE

Open in STEVE

Open it in STEVE The STEVE runtime runs in STEVE: open the part there, or download the code and bundle.

Get the code

curl -o part.py "https://pythonparts.org/p/steve/slit-coupling/v/1.0.0/raw/part.py"

Raw files, bundle and API

curl "https://pythonparts.org/api/v1/parts/steve/slit-coupling/1.0.0"

The version's JSON (parameters, presets, files); add /build?name=value for a build at other values.

About this part

steve96 parts

Profile

Aluminum (generic)Aluminum alloys · Custom finish · 2.7 g/cm³

Mass: 16.8 g

At the parameters shown in the viewer.

License: MIT

Permissive: use, change and sell it; keep the copyright notice.

Runtime: STEVE
Requirements: None stated in the code
Built with: CadQuery 2.9.0.dev0
Published: Nov 5, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: 8c4dab83af1a…

#coupling #shaft-coupling #slit-coupling #power-transmission #metric

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Slit shaft coupling, long clamping type, one aluminium body with slits between two clamping hubs. Sizes and bore pairs from MISUMI's CPLCN table. See the README.

Slit coupling

A long, clamping slit shaft coupling: one aluminium body with slits between two clamping hubs. Axis along Z, an end face on the XY plane, bore d1 in the lower half of the length and d2 in the upper.

A slit coupling is not a helical beam coupling, which is a different part.

Source

Every pair the table offers on these sizes is a preset. The 40 mm size has a different hub and isn't here.

1.0.0 Latest Nov 5, 2026 · 1 hour ago

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