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Oldham couplings / hub clamping / 1 disc: POM / body: aluminium

Oldham couplings / hub clamping / 1 disc: POM / body: aluminium

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Back to the Category Shaft Couplings

Technical Drawing - Claw Couplings

Couplings/Oldham/Blue Set Screw/Clamping/Green Short Clamping:Related Image

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Available dimensions and tolerances can be found under the tab More information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Claw Couplings

Operating Temperature: -20°C ~ 80°C
The lateral, angular, and axial misalignment values shown are for each occurring individually. When multiple misalignments are occurring simultaneously, the allowable maximum value of each will be reduced to 1/2.
For the selection criteria and alignment procedures, see >>P.1061
Parts Material Surface Treatment Accessory
HubAluminum AlloyClear AnodizeHex Socket Head Cap Screw
SpacerPolyacetal-
 

Further specifications can be found under the tab More information.

Composition of a Product Code - Claw Couplings

Part Number-Shaft Bore Dia. d1-Shaft Bore Dia. d2
CPOCG16-3-5

Alterations - Claw Couplings

Couplings/Oldham/Blue Set Screw/Clamping/Green Short Clamping:Related Image

General Information - Claw Couplings

Shaft coupling - compensation coupling - Oldham coupling - slit coupling - chain coupling - disc coupling - bellow coupling - product assortment

 

Shaft Coupling Selection Details

- Material: aluminum, aluminum alloy, steel, stainless steel, plastic

- Coupling buffer material: polyacetal, polyurethane, nylon, aluminum bronze, carbon fibre reinforced polymer (CFRP)

- Disc material: stainless steel, polyimide, carbon fibre (carbon)

- Fastening: hub clamping, half shell clamping, threaded pin clamping, clamping sleeve, keyway

- Design: slit coupling, disc coupling (servo coupling), Oldham coupling, dog coupling, jaw coupling, bellow coupling, metal bellow coupling, elastomer coupling

- ISO tolerances: H8

- Shaft diameter: 1 to 45 mm

- Outer diameter: 6 to 95 mm

- Length: 8.4 to 100 mm

- Offset: angle offset, radial offset, axial offset

Design Overview

 

Description/Basics

A shaft coupling, also called a compensating coupling, is generally used for the transmission of torque for mechanical engineering. Flexible shaft couplings (non-rigid) can compensate for lateral, axial and angular offsets (misalignment). Therefore, these are common connecting elements between motors and axles/shafts or even ball screws.

There are various types of designs, such as the jaw couplings, disc couplings (servo couplings), slit couplings, bellow couplings, Oldham couplings and many others, which are selected depending on the type of misalignment. You can determine which design is the right one for transmission in your application with the Coupling Selection Method available as a PDF.

When the shaft coupling is professionally installed, the transmission of rotational forces should be slip-free. To do this, the appropriate shaft coupling must be selected depending on the application. Here, it is important to observe the degree of misalignment, the maximum speed of rotation and the permissible torque of the compensation coupling and not to exceed these values during operation. If several misalignments occur at the same time, it is recommended to reduce the maximum value of the specified misalignment by approximately half.

The most commonly used elastomer coupling is the jaw coupling, which consists of a plastic buffer with damping properties. As a result, shocks and vibrations in a drive system can be damped, which protects adjacent components in the transmission of force. Our product range offers you alternative materials for the elastomers. These include among others aluminum bronze and carbon fibre-reinforced plastic.

The different shaft connections on the compensation couplings allow various connection variants for assembly. For this purpose, hub clamping, half shell clamping, slot clamping, threaded pin clamping, chip sleeve and keyways are available.
If a keyway is selected for a MISUMI shaft coupling, it is recommended obtaining the MISUMI machine key, as it is best to combine these.

A shaft coupling can be used for precise positioning. These are often combined together with slide screws or ball screws. A disc clutch (servo coupling) is suitable for this application, since it has a high torsional rigidity.

In addition to the standardized diameter of the shaft bore, MISUMI offers the option LDC and RDC, which allows the drill diameter to be adjusted to the shaft end in 0.1 mm increments.

 

Application Examples - Claw Couplings

Application example: shaft coupling - disc coupling with servo motor - disc coupling with ball screw drive - shaft clutch with servo motor - shaft clutch with ball screw drive

Shaft coupling with servo motor and ball screw
(1) Servo motor, (2) disc coupling (servo coupling), (3) ball screw

Application example: shaft coupling with encoder - shaft coupling with bearing housing - slit coupling with encoder - slit coupling with bearing housing -

Slit coupling with encoder
(1) Bearing with housing, (2) shaft coupling, (3) motor, (4) axles/shafts

Application example - Performance test stand with shaft coupling - Oldham coupling with engine - test stand with Oldham coupling

Engine test stand with Oldham coupling
(1) X-axis positioning stage, (2) performance test station, (3) shaft coupling, (4) brackets, L-shaped

Application example: synchronous pulley with shaft coupling - shaft coupling with motor and gearbox

Shaft coupling with motor and gearbox
(1) Motor, (2) Shaft coupling, (3) Conversion/Reducing gears, (4) Timing pulleys / Idlers

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

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  1. 1
Part Number
CPOCG12-[3,​4,​5]-[3,​4,​5]
CPOCG12-[3,​4,​5]-RDC[3-5/1]
CPOCG12-[3,​4,​5]-RDC[3.175,​4.5]
CPOCG12-LDC[3-5/1]-[3,​4,​5]
CPOCG12-LDC[3-5/1]-RDC[3-5/1]
CPOCG12-LDC[3-5/1]-RDC[3.175,​4.5]
CPOCG12-LDC[3.175,​4.5]-[3,​4,​5]
CPOCG12-LDC[3.175,​4.5]-RDC[3-5/1]
CPOCG12-LDC[3.175,​4.5]-RDC[3.175,​4.5]
CPOCG16-[3,​4,​5,​6]-[3,​4,​5,​6]
CPOCG16-[3,​4,​5,​6]-RDC[3-6/1]
CPOCG16-[3,​4,​5,​6]-RDC[3.175,​4.5]
CPOCG16-LDC[3-6/1]-[3,​4,​5,​6]
CPOCG16-LDC[3-6/1]-RDC[3-6/1]
CPOCG16-LDC[3-6/1]-RDC[3.175,​4.5]
CPOCG16-LDC[3.175,​4.5]-[3,​4,​5,​6]
CPOCG16-LDC[3.175,​4.5]-RDC[3-6/1]
CPOCG16-LDC[3.175,​4.5]-RDC[3.175,​4.5]
CPOCG20-[5,​6,​6.35,​7,​8]-[5,​6,​6.35,​7,​8]
CPOCG20-[5,​6,​6.35,​7,​8]-RDC[5-8/1]
CPOCG20-LDC[5-8/1]-[5,​6,​6.35,​7,​8]
CPOCG20-LDC[5-8/1]-RDC[5-8/1]
CPOCG25-[6.35,​7,​8,​10]-[6.35,​7,​8,​10]
CPOCG25-[6.35,​7,​8,​10]-RDC[6.35,​9.525]
CPOCG25-[6.35,​7,​8,​10]-RDC[7-10/1]
CPOCG25-LDC[6.35,​9.525]-[6.35,​7,​8,​10]
CPOCG25-LDC[6.35,​9.525]-RDC[6.35,​9.525]
CPOCG25-LDC[6.35,​9.525]-RDC[7-10/1]
CPOCG25-LDC[7-10/1]-[6.35,​7,​8,​10]
CPOCG25-LDC[7-10/1]-RDC[6.35,​9.525]
CPOCG25-LDC[7-10/1]-RDC[7-10/1]
CPOCG32-[8,​10,​11,​12,​14]-[8,​10,​11,​12,​14]
CPOCG32-[8,​10,​11,​12,​14]-RDC[8-14/1]
CPOCG32-[8,​10,​11,​12,​14]-RDC[9.525,​12.7]
CPOCG32-LDC[8-14/1]-[8,​10,​11,​12,​14]
CPOCG32-LDC[8-14/1]-RDC[8-14/1]
CPOCG32-LDC[8-14/1]-RDC[9.525,​12.7]
CPOCG32-LDC[9.525,​12.7]-[8,​10,​11,​12,​14]
CPOCG32-LDC[9.525,​12.7]-RDC[8-14/1]
CPOCG32-LDC[9.525,​12.7]-RDC[9.525,​12.7]
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSAllowable Torque Range
(N•m) 		Shaft Bore Dia. 1 d1 (or d)
(mm) 		Shaft Bore Dia. 2 d2 (or d)
(mm) 		O.D. D
(mm) 		Overall Length
(mm) 		Allowable Torque
(Nm) 		Max. Rotational Speed
(r/min) 		Allowable Lateral Misalignment Range
(mm) 		Allowable Lateral Misalignment
(mm) 		Moment of Inertia
(kg･m2) 		Shaft I.D. d1 Change Hole Dia. [LDC] Specified in 0.1mm Increment Shaft I.D. d2 Change Hole Dia. [RDC] Specified in 0.1mm Increment
1 7 Days 100.05 to 1.003 ～ 53 ～ 51214.90.2520000.41 to 1.00.67.1x10-8--
1 7 Days 100.05 to 1.003 ～ 5-1214.90.2520000.41 to 1.00.67.1x10-8-3 ～ 5
1 7 Days 100.05 to 1.003 ～ 5-1214.90.2520000.41 to 1.00.67.1x10-8--
1 7 Days 100.05 to 1.00-3 ～ 51214.90.2520000.41 to 1.00.67.1x10-83 ～ 5-
1 7 Days 100.05 to 1.00--1214.90.2520000.41 to 1.00.67.1x10-83 ～ 53 ～ 5
1 7 Days 100.05 to 1.00--1214.90.2520000.41 to 1.00.67.1x10-83 ～ 5-
1 7 Days 100.05 to 1.00-3 ～ 51214.90.2520000.41 to 1.00.67.1x10-8--
1 7 Days 100.05 to 1.00--1214.90.2520000.41 to 1.00.67.1x10-8-3 ～ 5
1 7 Days 100.05 to 1.00--1214.90.2520000.41 to 1.00.67.1x10-8--
1 7 Days 100.05 to 1.003 ～ 63 ～ 616210.4390000.41 to 1.013x10-7--
1 7 Days 100.05 to 1.003 ～ 6-16210.4390000.41 to 1.013x10-7-3 ～ 6
1 7 Days 100.05 to 1.003 ～ 6-16210.4390000.41 to 1.013x10-7--
1 7 Days 100.05 to 1.00-3 ～ 616210.4390000.41 to 1.013x10-73 ～ 6-
1 7 Days 100.05 to 1.00--16210.4390000.41 to 1.013x10-73 ～ 63 ～ 6
1 7 Days 100.05 to 1.00--16210.4390000.41 to 1.013x10-73 ～ 6-
1 7 Days 100.05 to 1.00-3 ～ 616210.4390000.41 to 1.013x10-7--
1 7 Days 100.05 to 1.00--16210.4390000.41 to 1.013x10-7-3 ～ 6
1 7 Days 100.05 to 1.00--16210.4390000.41 to 1.013x10-7--
1 7 Days 100.05 to 1.005 ～ 85 ～ 82022.10.7310001.1 to 3.01.37.4x10-7--
1 7 Days 100.05 to 1.005 ～ 8-2022.10.7310001.1 to 3.01.37.4x10-7-5 ～ 8
1 7 Days 100.05 to 1.00-5 ～ 82022.10.7310001.1 to 3.01.37.4x10-75 ～ 8-
1 7 Days 100.05 to 1.00--2022.10.7310001.1 to 3.01.37.4x10-75 ～ 85 ～ 8
1 7 Days 101.01 to 3.006.35 ～ 106.35 ～ 102527.21.2250001.1 to 3.01.52.2x10-6--
1 7 Days 101.01 to 3.006.35 ～ 10-2527.21.2250001.1 to 3.01.52.2x10-6--
1 7 Days 101.01 to 3.006.35 ～ 10-2527.21.2250001.1 to 3.01.52.2x10-6-7 ～ 10
1 7 Days 101.01 to 3.00-6.35 ～ 102527.21.2250001.1 to 3.01.52.2x10-6--
1 7 Days 101.01 to 3.00--2527.21.2250001.1 to 3.01.52.2x10-6--
1 7 Days 101.01 to 3.00--2527.21.2250001.1 to 3.01.52.2x10-6-7 ～ 10
1 7 Days 101.01 to 3.00-6.35 ～ 102527.21.2250001.1 to 3.01.52.2x10-67 ～ 10-
1 7 Days 101.01 to 3.00--2527.21.2250001.1 to 3.01.52.2x10-67 ～ 10-
1 7 Days 101.01 to 3.00--2527.21.2250001.1 to 3.01.52.2x10-67 ～ 107 ～ 10
1 7 Days 101.01 to 3.008 ～ 148 ～ 143233.32.8190001.1 to 3.027.3x10-6--
1 7 Days 101.01 to 3.008 ～ 14-3233.32.8190001.1 to 3.027.3x10-6-8 ～ 14
1 7 Days 101.01 to 3.008 ～ 14-3233.32.8190001.1 to 3.027.3x10-6--
1 7 Days 101.01 to 3.00-8 ～ 143233.32.8190001.1 to 3.027.3x10-68 ～ 14-
1 7 Days 101.01 to 3.00--3233.32.8190001.1 to 3.027.3x10-68 ～ 148 ～ 14
1 7 Days 101.01 to 3.00--3233.32.8190001.1 to 3.027.3x10-68 ～ 14-
1 7 Days 101.01 to 3.00-8 ～ 143233.32.8190001.1 to 3.027.3x10-6--
1 7 Days 101.01 to 3.00--3233.32.8190001.1 to 3.027.3x10-6-8 ～ 14
1 7 Days 101.01 to 3.00--3233.32.8190001.1 to 3.027.3x10-6--

Loading...

  1. 1

Back to the Category Shaft Couplings

Technical Drawing - Claw Couplings

Couplings/Oldham/Blue Set Screw/Clamping/Green Short Clamping:Related Image

Open the technical drawing in the new window

Specification Tables - Claw Couplings

Part Numberd1, d2 Selection (d1≤d2)d3LℓtFAClamp ScrewUnit Price
TypeDMTightening Torque (N • m)
CPOCG12345        614.95-2.54M20.5 
163456       82173.55M2.51 
20  566.3578    1022.16.5 
25    6.357810   1427.2849M31.5 
32      8101112141833.310511M42.5 
 
Part NumberAllowable Torque (N • m)Angular Misalignment (°)Lateral Misalignment (mm)Static Torsional Spring Constant (N • m/rad)Max. Rotational Speed (r/min)Moment of Inertia (kg • m2)Mass (g)
TypeD
CPOCG120.220.69520007.1x10-83
160.4130390003x10-78
200.71.347310007.4x10-713
251.21.585250002.2x10-624
322.82190190007.3x10-648
The allowable torque varies depending on temperature. See P.1062
Spacers are available separately. See Here

 

Alterations - Claw Couplings

Couplings/Oldham/Blue Set Screw/Clamping/Green Short Clamping:Related Image
 

Basic information

Series Name Oldham Type Allowable Misalignment Angular Misalignment / Eccentricity Application Standard
Max. Rotational Speed Range(r/min) 10,001 to 78,000 Features Low Moment of Inertia Body Material Aluminum
Category Coupling Main Body Allowable Angular Misalignment(deg) 2 Buffer Part Material Polyacetal
Operating Temperature(°C) -20::80

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Basic Attributes

  • Allowable Torque Range(N•m)

    • 0.05 to 1.00
    • 1.01 to 3.00

    Clear

  • Shaft Bore Dia. 1 d1 (or d)(mm)

    • 3
    • 4
    • 5
    • 6
    • 6.35
    • 7
    • 8
    • 10
    • 11
    • 12
    • 14

    Clear

  • Shaft Bore Dia. 2 d2 (or d)(mm)

    • 3
    • 4
    • 5
    • 6
    • 6.35
    • 7
    • 8
    • 10
    • 11
    • 12
    • 14

    Clear

  • O.D. D(mm)

    • 12
    • 16
    • 20
    • 25
    • 32

    Clear

  • Overall Length(mm)

    • 14.9
    • 21
    • 22.1
    • 27.2
    • 33.3

    Clear

  • Allowable Torque(Nm)

    • 0.2
    • 0.4
    • 0.7
    • 1.2
    • 2.8

    Clear

  • Max. Rotational Speed(r/min)

    • 19000
    • 25000
    • 31000
    • 39000
    • 52000

    Clear

  • Allowable Lateral Misalignment Range(mm)

    • 0.41 to 1.0
    • 1.1 to 3.0

    Clear

  • Allowable Lateral Misalignment(mm)

    • 0.6
    • 1
    • 1.3
    • 1.5
    • 2

    Clear

  • Shaft I.D. d1 Change Hole Dia. [LDC] Specified in 0.1mm Increment

     [3-14/1]

    Clear

  • Shaft I.D. d2 Change Hole Dia. [RDC] Specified in 0.1mm Increment

     [3-14/1]

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  • Type

    • CPOCG

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  • Filter by CAD data type

    • 2D
    • 3D

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Filter by standard shipping days

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    • 7 Days or Less

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Optional Attributes

Frequently Asked Questions (FAQ)

Question:

Can a claw coupling compensate for an angle?
Answer:

As a rule, a claw coupling can compensate for an angular offset. How large this angle may be depends on the respective claw coupling. Here, it is recommended to always refer to the technical information in the data sheet. If there are other misalignments, there is a possibility that the amount of the compensation will be reduced depending on the coupling type. There are notes on this for the shaft couplings.
Question:

Which coupling is suitable for a servo motor?
Answer:

A disc coupling can be used with a servo motor application. These have a good torsion rigidity, which is necessary for applications with alternating direction of rotation. These couplings are often used in positioning applications. Here, it is recommended to assume the peak torque of the servo motor and to use the compensation factor found on the product page as safety. The permissible torque of the shaft coupling should be higher than the determined value.
Question:

What temperature can an elastomeric clutch withstand?
Answer:

The temperatures that a claw coupling or Oldham coupling with elastomer buffer can withstand depend on the material used. The permissible temperature is noted for the respective product. However, when designing the shaft coupling, the temperature correction factor should be taken into account in the calculation. You can find it in the shaft coupling selection procedure as a PDF.

Question:

Which coupling compensates for a high angular offset?
Answer:

A metal bellow coupling can be a possible variant in the case of a high angle offset. This variant of a shaft coupling can compensate an angular offset of up to approx. 2°. This is made possible by the flexible bellow coupling.

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