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Oldham Couplings Set Screw Type (GCO20-5-6)
- On Sale Till 31/03/2025
- Volume Discount
14-848-1
(i)Caution
- The products you receive will be in YELLOW colors, but be assured that the products' specifications are the same and following MISUMI Catalog.
Part Number
Configured Part Number is shown.
GCO20-5-6
Economy Set Screw Oldham Coupling
- Large radial and angular deviations allowed
- High torque capacity for demanding applications
- Easily disassembled and reassembled with cross slider design
- Universal use
- Durable aluminum and Polyacetal construction
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Coupling Product Overview
■ Features: The quality and performance are the same as those of previous products, thus realizing low-cost supply. It can replace CPOC and CPO.
Coupling Product Feature
Dimensional Coupling Drawing
| Typ | [M] Material | [S] Surface Treatment | [A] Accessories | |||
| Body | Spacer | Fastening Bolt Set Screw | Body | Lock screw Set Screw | ||
| ① | Aluminum | Polyacetal | SCM435 | Alumite Treatment | Ferroferric Oxide Protective Film | Fastening Bolt |
| ② | Set Screw | |||||
[ ! ] Service 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.
Coupling Specification Table
| Type | D | d1, d2 selection (But d1≤d2) | d3 | L | ℓ | t | F | A | Set Screw·Fastening Bolt | ||||||||||
| M | Tightening Torque | ||||||||||||||||||
| (N·m) | |||||||||||||||||||
| ① | 16 | ＊5 | ＊6 | 7 | 29 | 12.5 | 4 | 3 | 5 | M2.5 | 1 | ||||||||
| 20 | ＊6 | ＊6.35 | 8 | 9 | 33 | 14 | 5 | 6.5 | |||||||||||
| 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 | ||||||
| ② | 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 | ||||||||
■The Coupling Characteristic Value
| 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) |
| ① | 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 | |||
| ② | 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 |
Example of Use Coupling
Coupling Precautions
Coupling Usage Method
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
| Part Number |
|---|
| GCO20-5-6 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Shaft Bore Dia. 1 d1 (or d) (Ø) | Shaft Bore Dia. 2 d2 (or d) (Ø) | O.D. (Ø) | Overall Length (mm) | Allowable Torque Range (N•m) | Allowable Torque (N•m) | Allowable Lateral Misalignment (mm) | Allowable Lateral Misalignment Range (mm) | Moment of Inertia (kg･m2) | Shaft Bore Shape |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 18.18 SGD 3.64 | 1 Piece(s) | Available | Same day | 5 | 6 | 20 | 23 | 1.01~3.00 | 1.2 | 1.5 | 1.1~3.0 | 6.9×10-7 | Standard Bore |
Loading...
Basic Information
| Series Name | Oldham | Application | Standard | Features | High Torque Type |
|---|---|---|---|---|---|
| Allowable Misalignment | Angular Misalignment / Eccentricity | Max. Rotational Speed Range(r/min) | 4001~10000 | Body Material | Aluminum Alloy |
| Allowable Angular Misalignment(deg) | 3 | Product Category | Coupling Main Body | Max. Rotational Speed(r/min) | 10000 |
| Buffer Material | Polyacetal | Operating Temperature(°C) | -20::80 | Shaft Tightening Method | Set Screw |
Please check the type/dimensions/specifications of the part GCO20-5-6 in the Oldham Couplings Set Screw Type series.
Specification/Dimensions
-
type
- GCO
- GCOWK
-
Shaft Bore Dia. 1 d1 (or d)(Ø)
-
Shaft Bore Dia. 2 d2 (or d)(Ø)
-
O.D.(Ø)
-
Overall Length(mm)
-
Allowable Torque Range(N•m)
-
Allowable Torque(N•m)
-
Allowable Lateral Misalignment(mm)
-
Allowable Lateral Misalignment Range(mm)
-
Shaft Bore Shape
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- Same day
Specify Alterations
- 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 the MISUMI website.
- Question: What kind of coupling should be used when the angular misalignment is very large?
- Answer: Please select the universal joint with allowable angular misalignment of 30 degrees. In addition, when grease cannot be applied regularly, use a rubber sleeve to fill grease and use it.
- Question: Which disc type coupling is better, single disc type or double disc type?
-
Answer:
Double disc type can absorb angular misalignment and lateral misalignment, but the total length will increase.
Although the total length of the single disc type is short, it is only suitable for applications with narrow space because lateral misalignment is not allowed in the structure. Special attention should be paid to centering during use. - Question: How much is appropriate to insert the shaft into the coupling during installation?
- Answer: Please select the length of the main body (coupling part) described in the product catalog. If the insertion amount is too short, the shaft may slip and the clamping part may be damaged; If the insertion amount is too long, it will be damaged due to shaft interference inside the coupling.
- Question: Why is it necessary to install a protection cover around the coupling?
- Answer: Due to high-speed rotation, accidental contact may result in injury or entanglement of gloves, towels, etc. In addition, for some reasons, parts may be damaged or debris may be scattered. Therefore, be sure to install the safety protection cover.
- Question: What should I do if there is no matching shaft bore diameter?
- Answer: Please select a product with changeable keyway width or available with keyway processing. MISUMI products are divided into MCSLCWK series (disc type), CPOC series (cross type) and MMJN series (claw type), etc.
- Question: Is it a defective product that has difference in groove gap width?
- Answer: Since the difference is within the dimensional tolerance range, there is no problem.
Similar Part Numbers
| Part Number |
|---|
| GCO16-3-6 |
| GCO16-3-6.35 |
| GCO16-4-5 |
| GCO20-5-6.35 |
| GCO20-6.35-6.35 |
| GCO20-6.35-8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Shaft Bore Dia. 1 d1 (or d) (Ø) | Shaft Bore Dia. 2 d2 (or d) (Ø) | O.D. (Ø) | Overall Length (mm) | Allowable Torque Range (N•m) | Allowable Torque (N•m) | Allowable Lateral Misalignment (mm) | Allowable Lateral Misalignment Range (mm) | Moment of Inertia (kg･m2) | Shaft Bore Shape |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 17.24 | 1 Piece(s) | Available | Same day | 3 | 6 | 16 | 18 | 0.05~1.00 | 0.7 | 1 | 0.41~1.0 | 2.2×10-7 | Standard Bore | |
SGD 17.24 | 1 Piece(s) | Available | Same day | 3 | 6.35 | 16 | 18 | 0.05~1.00 | 0.7 | 1 | 0.41~1.0 | 2.2×10-7 | Standard Bore | |
SGD 17.24 | 1 Piece(s) | Available | Same day | 4 | 5 | 16 | 18 | 0.05~1.00 | 0.7 | 1 | 0.41~1.0 | 2.2×10-7 | Standard Bore | |
SGD 18.18 | 1 Piece(s) | Available | Same day | 5 | 6.35 | 20 | 23 | 1.01~3.00 | 1.2 | 1.5 | 1.1~3.0 | 6.9×10-7 | Standard Bore | |
SGD 18.18 | 1 Piece(s) | Available | Same day | 6.35 | 6.35 | 20 | 23 | 1.01~3.00 | 1.2 | 1.5 | 1.1~3.0 | 6.9×10-7 | Standard Bore | |
SGD 18.18 | 1 Piece(s) | Available | Same day | 6.35 | 8 | 20 | 23 | 1.01~3.00 | 1.2 | 1.5 | 1.1~3.0 | 6.9×10-7 | Standard Bore |
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