(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

8,3 million Products, 4.200 Brands, Free Shipping,
68.800 Stock items for Same Day Shipping
8,3 Juta Produk, 4.200 Merek, Gratis Pengiriman,
68.800 Item Stok untuk Pengiriman di Hari yang Sama
021-8984-0008
021-8984-0008
8:30 - 17:30 (Mon-Fri), 8:30 - 15:00 (Sat)
8:30 - 17:30 (Sen-Jum), 8:30 - 15:00 (Sab)

Search by Category / Brand Pencarian dengan
Kategori / Merek

Search by Category Pencarian dengan Kategori

Search by Brand Pencarian dengan Merek

  • Update Stock
  • Highlight from Us
Webcode Seach | Series
#CODE
Keyword suggestions
Part number suggestions
Discontinued Products
Order/Quote

Quote

Part Number Checker

?

This translation is a Google translation Terjemahan ini adalah terjemahan Google

  • Pemberitahuan Jadwal Pemeliharaan : Situs ini akan tidak tersedia dikarenaka jadwal pemeliharaan mulai dari 8:00 19/1/2025 sampai dengan 5:00 pada tanggal 20/1/2025. Kami mohon maaf atas ketidaknyamanan yang terjadi.
    Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 8:00 19/1/2025 to 5:00 (WIB) 20/1/2025. We apologize for the inconvenience.
  • Penghentian penjualan kategori produk pneumatik Seri Ekonomi (E-series). Info Detail
    Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

  • How can we improve?Bagaimana Kami bisa meningkatkan Pelayanan?

    How can we improve?Bagaimana Kami bisa meningkatkan Pelayanan?

    CommentsSaran
    Name (Optional)Nama (tidak wajib)
    E-mail Address (Optional)E-mail (tidak wajib)
    Tel (Optional)

    While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
    Customer Privacy Policy     Walaupun Kami tidak dapat langsung menjawab saran yang ditulis di lembar ini, informasinya akan kami review untuk peningkatan pelayanan dikemudian hari
    Kebijakan Privacy

    Thank you for your cooperation.Terima kasih atas kerjasama anda.

    While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
    Please use the inquiry form.
    Customer Privacy Policy     Walaupun Kami tidak dapat langsung menjawab saran yang ditulis di lembar ini, informasinya akan kami review untuk peningkatan pelayanan dikemudian hari
    Silahkan pergunakan Forms Permintaan.
    Kebijakan Privacy

Jaw Couplings Set Screw Type (GCJS20-BL-8-8)

Jaw Couplings Set Screw Type GCJS20-BL-8-8
  • Volume Discount
Check FAQ of this product (4 items)

MISUMI

MiSUMi Economy

MISUMI

· GCJS/ GCJSLK/ GCJSRK/ GCJSWK Jaw Couplings Set Screw Type.
· Jaw Couplings Application: Stepping Motor / Encoder.
· Maximum Rotational Speed Range: 10001~78000 (r/min).
· Maximum Rotational Speed: 10000 (r/min).
· Allowable Angular Misalignment: 1
· Jaw Couplings Body material: Aluminum Alloy.
· The spacer is made of Polyurethane and thus, can absorb vibration efficiently.
· Shaft Tightening Method: Set Screw
· Spacer Selectable Color: Blue, White and Red.
· Operating Temperature: -20°C to 60°C.
· Excellent torque transmission performance has been achieved by press-fitting the spacer into the hub.

(i)Caution

  • 【Products to be discontinued】This product is scheduled to be discontinued. Orders will be accepted until 28/12/2021. The alternative is the coupling jaw type set screw type (CPJ). Please check the specifications on the website.

PDFP.1-1101-2015

Part Number

Configured Part Number is shown.

GCJS20-BL-8-8

Economy Jaw Coupling

Vibration absorptionHigh torqueCompact design

- Efficiently absorbs vibrations with polyurethane spacer

- High torque capacity for heavy-duty applications

- Lightweight and compact design for easy installation

- Maintenance-free operation with long service life

- Versatile color options for customization

Economy Jaw Coupling
MISUMI Economy Logo

MISUMI Standard
MISUMI Standard

Cheaper Price
Cheaper Price

Product Variety
Product Variety

3D CAD
3D CAD Support


Coupling Product Overview

The claw Coupling, also known as the plum Coupling, is composed of two Coupling metal claw discs and an elastomer resin adjusting ring.
The resin adjusting ring can alleviate the inertia load impact when starting and stopping. Easy to disassemble and assemble.
Applicable motor types: recommended for stepping motors and universal motors.
 

Coupling Product Feature

The features of claw Coupling are as follows:
Simple structure, no lubrication, convenient repair, easy inspection, maintenance free, and continuous long-term operation.
Urethane elastic parts are wear-resistant and oil-resistant, have large carrying capacity, long service life, and are safe and reliable.
They have excellent damping, cushioning and electrical insulation properties. They have great axial, radial and angular compensation capabilities.
With simple structure, small radial dimension, light weight, and small moment of inertia, they are suitable for medium and high speed applications.
 

Dimensional Coupling Drawing

Dimensional drawing of claw Coupling

Dimensional drawing of claw Coupling
 
Standard
Bore		Keywayed BoreMaterialSurface
Treatment
d1
(One Side)		d2
(One Side)		d1, d2
(Both Sides)		HubSpacerSet
Screw		HubSet
Screw
GCJSGCJSLKGCJSRKGCJSWKAluminum AlloyPolyurethaneSCM435Clear AnodizeBlack Oxide

Coupling Specifications Overview

Overview/Features
SelectionColorHardness Shore A
BLBlue80
WHWhite92
RDRed98

Coupling Precautions

■ Calibration and adjustment
1. The Coupling allows axis deviation, and transmits rotation angle and torque, but when the axis deviation exceeds the allowable value, vibration will occur or the service life will be drastically reduced.
Be sure to make calibration and adjustment.
2. Axis deviation includes lateral misalignment (parallel error of two axes), angular misalignment (angular error of two axes) and axial amplitude (axial movement of shaft).
Please calibrate and adjust the shaft to ensure that the axis deviation is below the allowable value recorded in the dimension and performance table of each product.
3. The allowable value of axis deviation recorded in the dimension and performance table refers to the situation when either lateral misalignment, angular misalignment or axial amplitude occurs alone. When more than two axis deviations occur at the same time, the corresponding allowable values are halved respectively.
4. Axis deviation not only occurs when assembling to the device, but also is caused by vibration, thermal expansion and bearing wear in operation. Therefore, it is recommended to set the axis deviation below 1/3 of the allowable value.
 

Example of Use Coupling

Use example of Coupling 1) motor × gear boxUse example of Coupling 2) motor × ball screw
Use example of Coupling 1: motor × gearboxUse example of Coupling 2: motor×ball screw
 
Use example of Coupling 3) motor × encoderUse example of Coupling 4) motor × measuring tester
Use example of Coupling 3: motor×encoderUse example of Coupling 4: motor×measuring tester

Coupling Usage Method

■Mounting method
STEP1 Insert the Coupling
Confirm that the clamping bolt has been unscrewed, and then remove the dust, foreign matter and oil from the shaft and Coupling bore.
Then, when inserting the Coupling into the shaft, please be careful not to put the disc under excessive stress such as compression or tension.
STEP2 Use fixture to adjust
Please use fixture to adjust and fix the concentricity of the left and right hubs of the Coupling with high accuracy.
STEP3 Simple lateral misalignment and angular misalignment confirmation
Under the condition of unscrewed bolts, make the Coupling slide axially and confirm its smooth movement.
Then, rotate the Coupling to make sure it moves smoothly.
Lateral misalignment is not allowed for single disc type Coupling, so carry out positioning securely.
Simple lateral misalignment confirmation  Simple angular misalignment confirmation

STEP4 Installation
Please adjust the shaft insertion amount according to the dimension ℓ in the product catalog, and use a torque wrench to tighten with the specified torque.
＊ If the specified torque cannot be reached once, please cross fasten the left and right clamps twice or three times.
 

Coupling Related Products

(Economy series) GTR plum-shaped Coupling Clamping bolt fixing type/Clamping bolt with keyway typeCoupling Plum-shaped clamping screw fixing type JAAC buffer part material is blind hole (corresponding to LK8-C)Plum-shaped clamping screw fixing type SJCM
GTR plum-shaped Coupling Clamping bolt fixing type/Clamping bolt with keyway typeCouplingPlum-shaped clamping screw fixing type


Coupling Specification Table

Please order after selecting part number and parameters according to the selection steps Coupling Specification Table to Coupling Specification Table. Please specify the shaft bore dia. within the range of d1≤d2.
Part Number (TypeType·DD)－SpacerSpacer－d1d1－d2d2
GCJS30
GCPJSWK40		－
－		WH
BL		－
－		8
12		－
－		10
15
 
Part NumberAdjusting ringAdjusting ring
(Color selection)		d1d1, d2d2 selection (But d1≤d2)LℓBCFClamp Screw
TypeTypeDDMTightening torque (N·m)
GCJS14BL(Blue)
WH(White)
RD(Red)		456       227613.5M30.7
20 566.358     301085
30    8101214  3511101.55.5M41.7
40     1012141516662512212.5M54
 
Part NumberAdjusting ringAdjusting ring
(Color selection)		d1d1, d2d2 selection (But d1≤d2)LℓBCFClamp Screw
TypeTypeDDMTightening torque (N·m)
GCJSLK
GCJSRK
GCJSWK		30BL(Blue)
WH(White)
RD(Red)		101214  3511101.55.5M41.7
401012141516662512212.5M54

■Characteristic Value
Part NumberAllowable torque
(N·m)		Allowable
angular misalignment
(°)		Allowable lateral misalignment
(mm)		Static torsional
stiffness
(N·m/rad)		Maximum
rotational speed
(r/min)		Moment of inertia
(kg·m2)		Allowable
axial amplitude
(mm)		Weight
(g)
TypeDBLWHRDBLWHRDBLWHRD
GCJS140.71.221.00.150.100.1081422450002.1×10－7+0.6
0		7.3
201.8350.200.15162955310001.0×10－6+0.8
0		18
3047.512.50.200.154673130210005.9×10－6+1.0
0		46
404.910170.150.103805701200150004.0×10－5+1.2
0		150
The allowable torque varies with temperature.The allowable torque varies with temperature.
Lateral misalignmentLateral misalignment, angular misalignment and axial amplitude are all single allowable values. If there are multiple deviations at the same time, the allowable value of each deviation will be reduced to 1/2 of the original value.
 
Part NumberAllowable torque
(N·m)		Allowable
angular misalignment
(°)		Allowable lateral misalignment
(mm)		Static torsional
stiffness
(N·m/rad)		Maximum
rotational speed
(r/min)		Moment of inertia
(kg·m2)		Allowable
axial amplitude
(mm)		Weight
(g)
TypeDBLWHRDBLWHRDBLWHRD
GCJSLK
GCJSRK
GCJSWK		3047.512.51.00.200.150.104673130210005.8×10－6+1.0
0		45
404.910170.150.103805701200150003.8×10－5+1.2
0		150
Press the adjusting ring into the main body to assemble.Press the adjusting ring into the main body to assemble.

Specification Table
Please order after selecting part number and parameters according to the selection steps to . Please specify the shaft bore dia. within the range of d1≤d2.
Part Number (Type·D)－Spacer－d1－d2
GCJS30
GCPJSWK40		－
－		WH
BL		－
－		8
12		－
－		10
15
 
Part NumberAdjusting ring
(Color selection)		d1, d2 selection (But d1≤d2)LℓBCFClamp Screw
TypeDMTightening torque (N·m)
GCJS14BL(Blue)
WH(White)
RD(Red)		456       227613.5M30.7
20 566.358     301085
30    8101214  3511101.55.5M41.7
40     1012141516662512212.5M54
 
Part NumberAdjusting ring
(Color selection)		d1, d2 selection (But d1≤d2)LℓBCFClamp Screw
TypeDMTightening torque (N·m)
GCJSLK
GCJSRK
GCJSWK		30BL(Blue)
WH(White)
RD(Red)		101214  3511101.55.5M41.7
401012141516662512212.5M54

■Characteristic Value
Part NumberAllowable torque
(N·m)		Allowable
angular misalignment
(°)		Allowable lateral misalignment
(mm)		Static torsional
stiffness
(N·m/rad)		Maximum
rotational speed
(r/min)		Moment of inertia
(kg·m2)		Allowable
axial amplitude
(mm)		Weight
(g)
TypeDBLWHRDBLWHRDBLWHRD
GCJS140.71.221.00.150.100.1081422450002.1×10－7+0.6
0		7.3
201.8350.200.15162955310001.0×10－6+0.8
0		18
3047.512.50.200.154673130210005.9×10－6+1.0
0		46
404.910170.150.103805701200150004.0×10－5+1.2
0		150
The allowable torque varies with temperature.
Lateral misalignment, angular misalignment and axial amplitude are all single allowable values. If there are multiple deviations at the same time, the allowable value of each deviation will be reduced to 1/2 of the original value.
 
Part NumberAllowable torque
(N·m)		Allowable
angular misalignment
(°)		Allowable lateral misalignment
(mm)		Static torsional
stiffness
(N·m/rad)		Maximum
rotational speed
(r/min)		Moment of inertia
(kg·m2)		Allowable
axial amplitude
(mm)		Weight
(g)
TypeDBLWHRDBLWHRDBLWHRD
GCJSLK
GCJSRK
GCJSWK		3047.512.51.00.200.150.104673130210005.8×10－6+1.0
0		45
404.910170.150.103805701200150003.8×10－5+1.2
0		150
Press the adjusting ring into the main body to assemble.

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.
Loading...

CAD Download

30
45
60
  1. 1
Part Number
GCJS20-BL-8-8
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSShaft 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) 		Max. Rotational Speed
(r/min) 		Allowable Axial Misalignment
(mm) 		Moment of Inertia
(kg･m2) 		Spacer (Color) Shaft Bore Shape

239,621 IDR

1 Piece(s) Same day -8820301.01~3.001.80.210000 ～ 31000+0.81.0×10-6BL (Blue)Standard Bore

Loading...

  1. 1
 

Basic Information

Series Name Jaw Application Stepping Motor / Encoder Features High Torque Type / Low Moment of Inertia / Vibration Insulation
Allowable Misalignment Angular Misalignment / Eccentricity / Axial Misalignment Max. Rotational Speed Range(r/min) 10001~78000 Body Material Aluminum Alloy
Allowable Angular Misalignment(deg) 1 Product Category Coupling Main Body Allowable Lateral Misalignment Range(mm) 0.02~0.2
Buffer Material Polyurethane Operating Temperature(°C) -20::60 Shaft Tightening Method Set Screw

Please check the type/dimensions/specifications of the part GCJS20-BL-8-8 in the Jaw Couplings Set Screw Type series.

Configure

Clear All

1 Part Numbers

View Part Numbers

Configure Remaining Specifications
Completed
loading

Specification/Dimensions

  • Max. Rotational Speed(r/min)

    • 10000
    • 21000
    • 31000

    Clear

  • type

    • GCJS
    • GCJSWK

    Clear

  • Shaft Bore Dia. 1 d1 (or d)(Ø)

    • 8
    • 10

    Clear

  • Shaft Bore Dia. 2 d2 (or d)(Ø)

    • 8
    • 12

    Clear

  • O.D.(Ø)

    • 20
    • 30

    Clear

  • Overall Length(mm)

    • 30
    • 35

    Clear

  • Allowable Torque Range(N•m)

    • 1.01~3.00
    • 10.01~20.00

    Clear

  • Allowable Torque(N•m)

    • 1.8
    • 12.5

    Clear

  • Allowable Lateral Misalignment(mm)

    • 0.1
    • 0.2

    Clear

  • Spacer (Color)

    • BL (Blue)
    • RD (Red)

    Clear

  • Shaft Bore Shape

    • Keywayed Bore (d1/d2 Side)
    • Standard Bore

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

Question: What are the characteristics of claw couplings?
Answer: Claw couplings can absorb vibration, compensate radial and angular deviation, and are maintenance free, oil resistant and electrically insulated.
Question: Claw couplings can absorb vibration, compensate radial and angular deviation, and are maintenance free, oil resistant and electrically insulated.
Answer: Applicable motor types for claw couplings: recommended for stepping motors and universal motors.
Question: How to select according to the purpose, environment, working conditions?
Answer: Please refer to the MISUMI website.
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.

Check other FAQ (1 items) Hide

Products like this...

Part Number
GCJSWK30-RD-10-12
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSShaft 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) 		Max. Rotational Speed
(r/min) 		Allowable Axial Misalignment
(mm) 		Moment of Inertia
(kg･m2) 		Spacer (Color) Shaft Bore Shape

362,779 IDR

1 Piece(s)Available Same day 101012303510.01~20.0012.50.110000 ～ 21000+1.05.8×10-6RD (Red)Keywayed Bore (d1/d2 Side)

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
Tel：021-8990-4102 / FAX：021-8990-5803
8:30am - 5:30pm (Monday - Friday)
Technical Inquiry

Payment MethodMetode Pembayaran more Pelajari lebih lanjut

  • Bank TransferTransfer Bank
    • QRIS

About MISUMITentang MISUMI

About this WebsiteTentang Website ini

Useful ToolsAlat Serbaguna

Customer ServiceLayanan Pelanggan

MISUMI Contact Monday to Friday (8:30am to 5:30pm) , Saturday (8:30am to 3:00pm) *Order cut off time Monday to Friday: 4:30pm , Saturday : 2:00pm MISUMI Kontak Senin - Jumat (8:30 WIB - 17:30 WIB) , Sabtu (8:30WIB - 15:00 WIB) *Batas Waktu Pemesanan Senin - Jumat : 16:30 WIB , Sabtu : 14:00 WIB

  • Tel:021-8984-0008
  • Fax:021-8984-0007
Inquiry Permintaan
Mobile View Tampilan Mobile

Copyright © MISUMI Corporation All Rights Reserved.