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MJC-55CS-GR-10-1

Flexible Coupling - Jaw-Type - Clamping Type

Safety PrecautionsGlossaryMounting/maintenance

RoHS Compliant

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Dimension Drawing

MJC-CS-GRFlexible Coupling - Jaw-Type - Clamping Type寸法図

MJC-CS-GRFlexible Coupling - Jaw-Type - Clamping Type寸法図

MJC-CS-GRFlexible Coupling - Jaw-Type - Clamping Type寸法図

Part Number Bore Diameter ALWBC＊1FGM Wrench
Torque
(N･m)		Price
(USD)		 CAD
Download		 Add to Cart
MJC-55CS-GR-10-1 9.525≦D≦28
28＜D≦32		 55 30 78 14 2 10.5 20
21		 M6
M5		 13
8		 124.97 CAD Cart

＊1：　Use with C Dimension

Part Number Slip TorqueMax. Bore Diameter
(mm)		 Rated
Torque＊1
(N・m)		Max.
Torque＊1
(N・m)		Backlash Zero Allowable Transmission Torque(N・m)＊3Max.
Rotational
(min-1)		 Moment
of
Inertia＊2
(Kg・m2)		Static
Torsional
Stiffness
(N・m/rad)		Max. Lateral Misalignment
(mm)		Max. Angular Misalignment
(°)		 Max. Axial Misalignment
(mm)		Sleeve Hardness Mass＊2
(g)
MJC-55CS-GR-10-1 33 32 75 150 - 11000 1.6×10-4 9000 0.08 1 0～+ 1.4 D64 310

＊1：　Correction of rated torque and max. torque due to load fluctuation is not required.However, if ambient temperature exceeds 30°C, be sure to correct the rated torque and max. torque with temperature correction factor shown in the table.MJC-CS's allowable operating temperature is -20°C to 60°C.
＊2：　These are values with max. bore diameter.

Part Number
Amount
Price（＄）

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Additional Modification Service

Modified Part Number

Enter the desired bore diameter and then click [Check Modified Part Number].

Standard bore diameter(D1) Standard bore diameter(D2) Modified Part Number Price Add to cart

unit:mm
Applicable Bore Diameter
D1D2		 keyway Key
b t Nominal Dimension
b×h
Standard Dimension Allowance
(JS9)		 Standard Dimension Allowance
6 7       2 ±0.0125 1.0 +0.1
0 		2×2
8 9 10     3 ±0.0125 1.4 3×3
11 12       4 ±0.0150 1.8 4×4
13 14 15 16 17 5 ±0.0150 2.3 5×5
18 19 20 22   6 ±0.0150 2.8 6×6
24 25 28 30   8 ±0.0180 3.3 +0.2
0 		8×7
32 35 36 38   10 ±0.0180 3.3 10×8
40 42 44     12 ±0.0215 3.3 12×8
45 48 50     14 ±0.0215 3.8 14×9
55 16 ±0.0215 4.3 16×10

unit:inch
Standard Inch Bore Diameter
D1D2		 Keyway
Wk T
Standard Dimension Allowance Standard Dimension Allowance
1/2 1/8 +0.002
  0		 0.560 +0.01
  0
9/16 1/8 +0.002
  0		 0.623 +0.01
  0
5/8 3/16 +0.002
  0		 0.709 +0.01
  0
11/16 3/16 +0.002
  0		 0.773 +0.01
  0
3/4 3/16 +0.002
  0		 0.837 +0.01
  0
13/16 3/16 +0.002
  0		 0.900 +0.01
  0
7/8 3/16 +0.002
  0		 0.964 +0.01
  0
15/16 1/4 +0.002
  0		 1.051 +0.01
  0
1 1/4 +0.002
  0		 1.114 +0.01
  0
1-1/8 1/4 +0.002
  0		 1.241 +0.01
  0
1-1/4 1/4 +0.002
  0		 1.367 +0.01
  0
1-3/8 5/16 +0.002
  0		 1.518 +0.01
  0
1-1/2 3/8 +0.002
  0		 1.669 +0.01
  0
1-5/8 3/8 +0.002
  0		 1.796 +0.01
  0
1-3/4 3/8 +0.002
  0		 1.922 +0.01
  0

Characteristics

  • Applicable motors
Tight Fit Easy Fit
Servomotor ◎ ○
Stepping Motor ◎ ◎
General-Purpose Motor ◎ ◎

◎: Excellent ○: Very good

  • Property
Tight Fit Easy Fit
Zero Backlash ○ -
High Torque ◎ ◎
Allowable Misalignment ○ ○
Vibration Absorption ◎ ◎
Electrical Insulation ◎ ◎
Assembling ○ ◎
Allowable Operating
Temperature		 -20℃ to 60℃ -20℃ to 60℃

◎: Excellent ○: Very good

  • This is a jaw type flexible coupling.
  • Tight Fit enables transmission with zero backlash at low torque.
  • Easy fit allows you to assemble and partition the hub and sleeve smoothly.
  • Excellent flexibility allows eccentricity, angular misalignment and twisting vibration to be accepted.
  • It has electrical insulation. Resistance value: Not less than 2 MΩ
  • There are four types of sleeve hardness. Please select desirable units according to usage conditions including torque and misalignment.
  • Sleeve Type

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type


Material/Finish

MJC-CS-GR
Hub A2017
Anodized＊1
Sleeve Polyurethane
Hex Socket Set Screw SCM435
Ferrosoferric Oxide Film (Black)
Hex Socket Head Cap Screw SCM435
Ferrosoferric Oxide Film (Black)

＊1：　With regard to bore surface treatment, process needs may result in a mixture of parts with and without surface treatment. This will not lead to any issues in terms of coupling performance.


Structure

Set Screw Type MJC-BLMJC-WHMJC-RDMJC-GRMJC-EBLMJC-EWHMJC-ERDMJC-EGR

MJC-＊＊-＊＊Tight Fit
MJC-＊＊-E＊＊Easy Fit

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Clamping Type MJC-CS-BLMJC-CS-WHMJC-CS-RDMJC-CS-GRMJC-CS-EBLMJC-CS-EWHMJC-CS-ERDMJC-CS-EGR

MJC-＊＊CS-＊＊Tight Fit
MJC-＊＊CS-E＊＊Easy Fit

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Set Screw + Key Type MJC-K-BLMJC-K-WHMJC-K-RDMJC-K-GRMJC-K-EBLMJC-K-EWHMJC-K-ERDMJC-K-EGR

MJC-＊＊K-＊＊Tight Fit
MJC-＊＊K-E＊＊Easy Fit

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Clamping + Key Type MJC-CSK-BLMJC-CSK-WHMJC-CSK-RDMJC-CSK-GRMJC-CSK-EWHMJC-CSK-ERDMJC-CSK-EGR

MJC-＊＊CSK-＊＊Tight Fit
MJC-＊＊CSK-E＊＊Easy Fit

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Sleeve

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type


Selection

Selection based on shaft diameter and rated torque

The area bounded by the shaft diameter and rated torque indicates is the selection size.

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

MJC-BL/MJC-WH//MJC-CSK-EGR_CFlexible Coupling - Jaw-Type

Selection Example

In case of selected parameters of shaft diameter of φ15 and load torque of 6 N•m, the selected size for MJC-＊＊-RD, MJC-＊＊-ERD is MJC-30-RD, MJC-30-ERD.

Selection based on the rated output of the servomotor

Rated Output
(W)		 Servomotor Specifications Selection Outside Diameter Size
Diameter of Motor Shaft
(mm)		 Rated Torque
(N・m)		 Instantaneous Max. Torque
(N・m)		 MJC-**-BL
MJC-**-EBL		 MJC-**-WH
MJC-**-EWH		 MJC-**-RD
MJC-**-ERD		 MJC-**-GR
MJC-**-EGR
10 5-6 0.032 0.096 14 14 14 14
20 5-6 0.064 0.19 14 14 14 14
30 5-7 0.096 0.29 14 14 14 14
50 6-8 0.16 0.48 20 20 20 20
100 8 0.32 0.95 20 20 20 20
200 9-14 0.64 1.9 30 30 30 30
400 14 1.3 3.8 30 30 30 30
750 16-19 2.4 7.2 - 40 40 40

Motor specifications are based on general values.For details, see the motor manufacturer's catalogs.This is the size for cases where devices such as reduction gears are not used.

Selection Example

In case of motor specification of shaft diameter of φ14 and rated torque of 0.64 N•m, the selected size of MJC-＊＊-BL is as follows.
Set Screw Type ----MJC-30-BL
Clamping Type ----MJC-30CS-BL
Set Screw + Key Type ----MJC-30K-BL
Clamping + Key Type ----MJC-30CSK-BL

Ambient Temperature / Temperature Correction Factor

Ambient Temperature Temperature Correction Factor
-20℃ to 30℃ 1.00
30℃ to 40℃ 0.80
40℃ to 60℃ 0.70

Sleeve Details

MJC-CS-GRFlexible Coupling - Jaw-Type - Clamping Type


Tight Fit

The hub and sleeve are press-fit and can be used under zero backlash＊1.Since the sleeve's vibration absorption can raise the gain of a servomotor, this unit can achieve high responsive operation exceeding the Disk coupling.

＊1：　For the torque used under zero backlash, please refer to dimensional table.


Easy Fit

This unit allows you to easily assemble and partition the hub and sleeve. This allows you to reduce the time of assembling the unit and maintenance.It is possible to mount a hub on the shaft in advance and easily assemble the unit even in a location where the coupling is less-visible.

Slip torque

Concerning the sizes shown in the table, please note that the shaft's slip torque is smaller than the max. torque of MJC-CS.

Unit : N・m

Part Number Bore Diameter (mm)
3 4 4.5 5 6 6.35 7 8 9.525 10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55
MJC-14CS 0.8 1.4 1.7 2.1 1.3 1.4 1.5
MJC-20CS 3.4 4.1 4.9 6.4 6.9 7.9 9.4 5.1 6 8
MJC-25CS 1.7 2.4 3.2 4.8 5.3 6.4 7.9 10 11 8.1 9.4
MJC-30CS 4 4.9 6.6 9.3 13 14 17 20 15 21 27
MJC-40CS 18 23 24 28 31 38
MJC-55CS 29 33 39 46 59 65 72 85 91 98 110 120 130 110 120
MJC-65CS 100 110 130 160 170 190 220 250 260 310 330 360 180 200
MJC-80CS 150 170 180 190 220 240 260 290 320 340 360 500
MJC-95CS 340 410 460 500 500 500 500 500 500 500 500 500

These are test values based on the condition of shaft's dimensional allowance: h7, hardness: from 34-40 HRC, and screw tightening torque of the values described in MJC-CS dimensional table.

Concerning the sizes shown in the table, please note that the shaft's slip torque is smaller than the max. torque of MJC-CS.

Unit : N・m

Part Number Bore Diameter (inch)
1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4
MJC-14CS 0.9 1.9 1.4
MJC-20CS 4.5 6.9 9.3 5.1
MJC-25CS 2.9 5.3 7.8 10 8.2 10
MJC-30CS 4.9 9.1 13 17 7.5 17 26
MJC-40CS 17 23 28 34 39
MJC-55CS 29 40 50 60 71 81 91 100 110 120 130 110 120
MJC-65CS 85 100 130 150 170 200 220 240 270 310 360 180 200
MJC-80CS 140 150 170 180 200 230 260 290 320 350 500
MJC-95CS 350 420 500 500 500 500 500

These are test values based on the condition of shaft's dimensional allowance: h7, hardness: from 34-40 HRC, and screw tightening torque of the values described in MJC-CS dimensional table.


Change in static torsional stiffness due to temperature

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

This is a value under the condition where the static torsional stiffness at 20°C is 100%.
The change of torsional stiffness within the range of allowable operating temperature is as shown in the graph.
Before using the unit, be aware of the deterioration of responsiveness.

Eccentric Reaction Force

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information

MJC-BL/MJC-WH//MJC-CSK-EGR_TTechnical Information


Related Services

Product List

MJC-55CS-GR

Click here to see MJC-55CS-GR

MJC-55CS-GR-10-7/8

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-55CS-GR-10-7/8

Feature

High Torque
High-precision Cutting work

MJC-55CS-GR-10-15/16

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-55CS-GR-10-15/16

Feature

High Torque
High-precision Cutting work

MJC-55CS-GR-11-7/16

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-55CS-GR-11-7/16

Feature

High Torque
High-precision Cutting work

MJC-55CS-GR-11-1/2

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-55CS-GR-11-1/2

Feature

High Torque
High-precision Cutting work

Click here to see MJC-CS-GR

MJC-25CS-GR

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-25CS-GR

Feature

High Torque
High-precision Cutting work

MJC-20CS-GR

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-20CS-GR

Feature

High Torque
High-precision Cutting work

MJC-40CS-GR

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-40CS-GR

Feature

High Torque
High-precision Cutting work

MJC-30CS-GR

Part Name

Flexible Coupling - Jaw-Type - Clamping Type

Part Number

MJC-30CS-GR

Feature

High Torque
High-precision Cutting work