A coupling is a part that connects two different rotating bodies (motor shaft, ball screw, etc.) and aims at transmitting torque. The load of assembly adjustment is reduced by absorbing the axis deviation (lateral misalignment, angular misalignment and axial amplitude) between rotating bodies. And in case of accidental overload, the coupling is destroyed and the rotating bodies are disconnected to protect the expensive power part and the whole device.

What are the types of MISUMI couplings?

There are disc type, grooved type, cross type, claw type, bellows type, rigid type and universal joint type.

How to select coupling according to motor?

Disc type is recommended for servo motors, grooved type is recommended for stepping motors, and cross type is recommended for universal motors.

How to select according to the purpose, environment, working conditions?

Please refer to specific instructions.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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GCOC16-6-6

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Oldham Couplings Clamping Type

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MiSUMi Economy

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Product Description

· GCOC/ GCOCRK/ GCOCWK Model Oldham Couplings Clamping Type.
· Couplings consisting of 2 hubs and 1 spacer disc.
· 2 hubs materials are aluminum alloy and surface treatment with alumite treatment.
· Spacer disc material is Polyacetal.
· Shaft Fastening Method: Lock bolt clamp screw type.
· Lock bolt clamp screw material: steel SCM435 surface treatment with Ferro ferric Oxide Protective Film.
· Oldham Coupling size: 16 to 32.
· Allowable Angular misalignment 3 degree.
· Operating Temperature Range: -20 to 80 °C
· Maximum Rotational Speed Range: 4001 ~ 10000 (r/min).

Economy Al/POM Oldham Coupling

High torqueClamping typePolyacetal

- High torque capacity ensures reliable performance for demanding applications

- Allows for significant angular misalignment up to specified degree for versatile use.

- Made from durable aluminum and polyacetal for long-lasting operation

- Easy clamping type installation for quick and secure setup

- Operates efficiently at high rotational speeds

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview

■ Summary coupling
Features: The quality and performance are the same as those of previous products, thus realizing low-cost supply. It can replace CPOC and CPO.

Dimensional Drawing

Product Drawings (Unit: mm)
(Economic type) Cross coupling Clamping type Dimensional drawing

Type				Material			Surface Treatment		Accessories
Standard Hole	d₁(One side)	d₂(One side)	d₁, d₂(Both sides)	Body	Spacer	Lock bolt clamp screw	Body	Lock screw clamp screw
GCOC	GCOCLK	GCOCRK	GCOCWK	Aluminum	Polyacetal	SCM435	Alumite Treatment	Ferroferric Oxide Protective Film	Lock Bolt
GCO	GCOLK	GCORK	GCOWK						Clamp Screw

Specification Table

Please order after selecting part number and parameters according to the selection steps Specification Table

Part Number (Type·D)	－	d₁	－	d₂
GCOC20	－	6	－	8

Part Number		d₁, d₂ selection (But d₁≤d₂)										d₃	L	ℓ	t	F	A	Clamp screw·Lock bolt
Type	D																	M	Tightening Torque
Type	D																	M	(N·m)
GCOC· GCOCRK GCOCLK ·GCOCWK	16			＊5	＊6							7	29	12.5	4	3	5	M2.5	1
	20				＊6	＊6.35	8					9	33	14	5	3	6.5	M2.5	1
	25					＊6.35	8	10				11	39	16.5	6	3.8	9	M3	1.5
	32						8	10	11	12	14	14.5	45	19	7	4.5	11	M4	2.5
GCO·GCORK GCOLK·GCOWK	16	＊3	＊4	＊5	＊6	＊6.35						7	18	7	4	3.5	－	M3	0.7
	20		＊4	＊5	＊6	＊6.35	8					9	23	9	5	4.5		M4	1.7
	25			＊5	＊6	＊6.35	8	10				11	28	11	6	5.5		M5	4
	32						8	10		12	14	14.5	33	13	7	6.5		M6	7

d1 and d2 ＊marked products without keyway hole.

d₁ and d₂＊marked products without keyway hole.
■The Coupling Characteristic Value

Part Number		Allowable torque (N·m)	Allowable Angular Misalignment (°)	Allowable lateral misalignment (mm)	Maximum rotational speed (r/pm)	Moment of inertia (kg·m³)	Weight (g)
Type	D	Allowable torque (N·m)	Allowable Angular Misalignment (°)	Allowable lateral misalignment (mm)	Maximum rotational speed (r/pm)	Moment of inertia (kg·m³)	Weight (g)
GCOC·GCOCRK GCOCLK·GCOCWK	16	0.7	3	1.0	10000	4.4×10^－⁷	11
	20	1.2		1.5		1.2×10^－⁶	20
	25	2.0		2.0		3.3×10^－⁶	37
	32	4.5		2.5		1.4×10^－⁶	70
GCO· GCORK GCOLK ·GCOWK	16	0.7	3	1.0	10000	2.2×10^－⁷	6
	20	1.2		1.5		6.9×10^－⁷	13
	25	2.0		2.0		2.1×10^－⁶	23
	32	4.5		2.5		6.5×10^－⁶	45

Moment of inertia and weight are the values at the maximum shaft dia.

Operating temperature: -20℃ to 80℃

In order to obtain a larger allowable angular misalignment, this product is designed exclusively by MISUMI. For details, please refer to the shape of the protruding part of the adjusting ring GCOCS.

Product Features

The coupling quality and performance are the same as those of previous products, thus realizing low-cost supply. It can replace CPOC and CPO.

Precautions

■Precautions for use coupling
(Economic type) Cross coupling Clamping type Precautions

Usage Method

●Coupling usage method
(Economic type) Cross coupling Clamping type Usage method

Example of Use

Overview·Features
(Economic type) Cross coupling Clamping type Example of use

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
GCOC16-6-6

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship
	₹ 1,161.30	2 Piece(s)	Available	Same day

Basic Information

Series Name	Oldham	Shaft Bore Dia. 1 d1 (or d)(Ø)	6	Shaft Bore Dia. 2 d2 (or d)(Ø)	6
O.D.(Ø)	16	Overall Length(mm)	29	Application	Standard
Allowable Torque Range(N•m)	0.05~1.00	Features	High Torque Type	Allowable Misalignment	Angular Misalignment / Eccentricity
Max. Rotational Speed Range(r/min)	4001~10000	Body Material	Aluminum	Allowable Torque(N•m)	0.7
Allowable Angular Misalignment(deg)	3	Allowable Lateral Misalignment(mm)	1	Product Category	Coupling Main Body
Allowable Lateral Misalignment Range(mm)	0.41~1.0	Max. Rotational Speed(r/min)	10000	Buffer Material	Polyacetal
Operating Temperature(°C)	-20::80	Moment of Inertia(kg･m²)	4.4×10^-7	Shaft Bore Shape	Standard Bore
Shaft Tightening Method	Fastening Bolt

Please check the type/dimensions/specifications of the part GCOC16-6-6 in the Oldham Couplings Clamping Type series.

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What is a coupling?: Answer: A coupling is a part that connects two different rotating bodies (motor shaft, ball screw, etc.) and aims at transmitting torque. The load of assembly adjustment is reduced by absorbing the axis deviation (lateral misalignment, angular misalignment and axial amplitude) between rotating bodies. And in case of accidental overload, the coupling is destroyed and the rotating bodies are disconnected to protect the expensive power part and the whole device.
Question: What are the types of MISUMI couplings?: Answer: There are disc type, grooved type, cross type, claw type, bellows type, rigid type and universal joint type.
Question: How to select coupling according to motor?: Answer: Disc type is recommended for servo motors, grooved type is recommended for stepping motors, and cross type is recommended for universal motors.
Question: How to select according to the purpose, environment, working conditions?: Answer: Please refer to specific instructions.

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