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Flexible Couplings - High-gain Rubber Type - Short Type

XGS-C

Safety PrecautionsGlossaryMounting/maintenance

RoHS Compliant

  • Zero Backlash
  • For High Gain Type
  • High Vibration Absorption
XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

XGS-CFlexible Couplings - High-gain Rubber Type - Short Type


Dimension Drawing

XGS-CFlexible Couplings - High-gain Rubber Type - Short Type寸法図

＊1：　E＝D2＋0.5(D2＜5)

E＝D2＋1(D2≥5)

Specs/CAD

Part Number ALWFGM Screw Tightening
Torque (N・m)		Standard Bore Diameter
D1-D2		 Price
(USD)		 CAD
Download		 Add to Cart Additional Modification
XGS-15C 15 6.5 18 2.15 5 M1.6 0.25 59.12 CAD Cart       
XGS-19C 19 7.7 20 2.65 6.5 M2 0.5 56.75 CAD Cart       
XGS-25C 25 9.5 27 3.25 9 M2.5 1 62.64 CAD Cart       
XGS-30C 30 11 30 4 11 M3 1.5 65.75 CAD Cart       
XGS-34C 34 12 35 4 12.25 M3 1.5 71.38 CAD Cart       
XGS-39C 39 15.5 40 4.5 14.5 M4 2.5 82.47 CAD Cart       

Part Number Max. Bore Diameter
(mm)		 Keyway Additional Modification Max. Bore Diameter
(mm)		 Rated
Torque＊1
(N・m)		Max. Rotational Frequency
(min-1)		 Moment of
Inertia
(kg・m2)＊2		Static
Torsional
Stiffness
(N･m/rad)		Max. Lateral Misalignment
(mm)		Max. Angular
Misalignment
(°)		 Max. Axial
Misalignment
(mm)		Mass
(g) ＊2
XGS-15C 6 - 0.5 42000 2.0×10-7 25 0.15 1.5 ±0.2 7
XGS-19C 8 6 0.8 33000 6.2×10-7 63 0.15 1.5 ±0.2 12
XGS-25C 12 9 2.3 25000 2.3×10-6 100 0.15 1.5 ±0.2 25
XGS-30C 15 11 3.3 21000 5.5×10-6 160 0.2 1.5 ±0.3 39
XGS-34C 16 12 5.5 18000 1.0×10-5 350 0.2 1.5 ±0.3 62
XGS-39C 20 15 7 16000 2.1×10-5 440 0.2 1.5 ±0.3 85

＊1：　Correction of rated torque due to load fluctuation is not required. If ambient temperature exceeds 30°C, be sure to correct the rated torque with temperature correction factor shown in the following table.

The allowable operating temperature of XGT is -20°C to 80°C.

※ The shaft's slip torque may be smaller than the coupling's rated torque depending on the shaft bore. ⇒Slip torque

＊2：　These are values with max. bore diameter.

Part Number Standard Bore Diameter D1･D2
XGS-15C 3-5 3-6 4-4 4-5 4-6
4.5-5 5-5 5-6 6-6  
XGS-19C 4-5 5-5 5-6 5-7 5-8
6-6 6-6.35 6-7 6-8 6.35-8
8-8        
XGS-25C 5-6 5-8 6-6 6-8 6-10
6-11 6-12 6.35-8 6.35-10 8-8
8-10 8-11 8-12 10-10 10-12
12-12        
XGS-30C 8-8 8-10 8-11 8-12 8-14
8-15 10-10 10-11 10-12 10-14
10-15 11-12 12-12 12-14 12-15
14-14 14-15 15-15    
XGS-34C 8-8 8-10 8-11 8-12 8-14
8-15 10-10 10-11 10-12 10-14
10-15 11-11 11-12 12-12 12-14
12-15 14-14 14-15 15-15 16-16
XGS-39C 10-10 10-12 10-14 10-15 10-16
12-12 12-14 12-15 12-16 12-19
12-20 14-14 14-15 14-16 15-15
15-16 15-19 16-16 17-17 20-20

● All products are provided with hex socket head cap screw.
● Recommended tolerance for shaft diameters is h6 and h7.
● In case of mounting on D-cut shaft, be careful about the position of the D-cut surface of the shaft. ⇒Mounting and Maintenance
● Bore and keyway modifications are available on request. Please take advantage of our modification services.
● For the shaft insertion amount to the coupling, see Mounting/maintenance. ⇒Mounting and Maintenance


Part Number
Amount
Price（＄）

Check other products Cart

　　　　　　

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

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
60℃ to 80℃ 0.55

Slip torque

As in the table below, the clamping types XGT-C, XGT-CS, XGS-C, XGS-CS, and XGL-C have different slip torque according to the bore diameter. Take care during selection.

Unit : N・m

Outside Diameter Bore Diameter (mm)
3 4 4.5 5 6 6.35 7 8 10 11 12 12.7 14 15 16 17 19 20
15 1 1.3 1.5 1.7 1.9
19 2.2 2.7 3.1 3.3 3.8
25 4.3 5 5.5 6.8
27 3.8 5 6.8
30 7.5 10 12
34 8.3 10 10 12 13
39 13 15 17 17 18 18 23 25
44 16 19 20 21 23 25 27
56 45 50 61

These are test values based on the conditions of shaft dimensional allowance: h7, hardness: 34-40 HRC, and screw tightening torque of the values described in XGT-CXGT-CSXGS-CXGS-CSXGL-C dimension tables. They are not guaranteed values.
Slip torque changes with usage conditions. Carry out tests under conditions similar to actual conditions in advance.


Structure

Set Screw Type

XGT Standard typeXGT
XGS Short typeXGS

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

Single Clamping Type

XGT-CS Standard typeXGT-CS
XGS-CS Short typeXGS-CS

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

Double Clamping Type

XGT-C Standard typeXGT-C
XGL-C Long typeXGL-C
XGS-C Short typeXGS-C

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

XGT-C XGL-C XGS-C Split Type

Easy to mount and remove screws.

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

Internal Structure

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

The designed shape of vibration-absorbing rubber achieves high torsional stiffness and high torque according to the finite element method. This product also succeeds in elongating its life by evenly dispersing the stress focusing on around the inner diameter of the jaw throughout the entire jaw.

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type


Material/Finish

XGT/XGL/XGS
Hub A2017
High-Gain Rubber HNBR
Hex Socket Head Cap Screw / Hex Socket Set Screw SCM435
Ferrosoferric Oxide Film (Black)

Characteristics

  • Applicable motors
XGT/XGL/XGS
Servomotor ◎
Stepping Motor ◎
General-purpose Motor ●

◎: Excellent ●: Available

  • Property
XGT/XGL/XGS
Zero Backlash ◎
For Servomotor High Gain ◎
High Torque ◎
High Torsional Stiffness ○
Allowable Misalignment ○
Vibration Absorption Characteristics ◎
Allowable Operating Temperature -20℃ to 80℃

◎: Excellent ○: Very good

  • A completely integrated flexible coupling that connects hubs on both sides with high-gain rubber.
  • It is suitable for control motors with high responsiveness, enabling high-accuracy positioning and shortened stabilization time.
  • About reduction of stabilization time XGT2XGL2

Application

Actuator / Surface-mount machine / High precision XY stage / Index table

Selection

Selection Based on Shaft Diameter and Rated Torque

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

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type

Selection Example

In case of selected parameters of shaft diameter of φ19 and load torque of 7 N•m, the selected size is XGT-39C.

Selection Based on the Rated Output of the Servomotor

Rated Output
(W)		 Servomotor Specifications＊1 Selection Size
Diameter of Motor Shaft
(mm)		 Rated Torque
(N・m)		 Instantaneous Max. Torque
(N・m)		 XGT XGL XGS
10 5 - 6 0.032 0.096 15C 15C 15C
20 5 - 6 0.064 0.19 15C 15C 15C
30 5 - 7 0.096 0.29 19C 19C 19C
50 6 - 8 0.16 0.48 19C 19C 19C
100 8 0.32 0.95 19C 19C 25C
200 9 - 14 0.64 1.9 27C 30C 27C
400 14 1.3 3.8 27C 30C 34C
750 16 - 19 2.4 7.2 39C 39C -

＊1：　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.


Eccentric Reaction Force

XGT-C/XGL-C/XGS-C_TTechnical Information

XGT-C/XGL-C/XGS-C_TTechnical Information

XGT-C/XGL-C/XGS-C_TTechnical Information

This is the force generated when placing XGTXGLXGS in an eccentric condition. As the eccentric reaction force becomes smaller, the force acting on the shaft bearing also becomes smaller.

XGT-C/XGL-C/XGS-C_TTechnical Information


Thrust reaction force

XGT-C/XGL-C/XGS-C_TTechnical Information

XGT-C/XGL-C/XGS-C_TTechnical Information

XGT-C/XGL-C/XGS-C_TTechnical Information

This is the force generated when compressing XGTXGLXGS in the axial direction. As the thrust reaction force becomes smaller, the force acting on the motor also becomes smaller.

XGT-C/XGL-C/XGS-C_TTechnical Information


Change in static torsional stiffness due to temperature

This is a value under the condition where the static torsional stiffness at 20°C is 100%.
Changes in the static torsion spring constant within the operating temperature are shown in the graph.
Before using the unit, be aware of the deterioration of responsiveness.

XGT-C/XGL-C/XGS-C_TTechnical Information


Related Products

XGT2enables further improvement of productivity by adding damping performance to XGT.
XGT2XGL2

XGT-C/XGL-C/XGS-C_CFlexible Couplings - High-gain Rubber Type


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Part Name

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Part Number

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Feature

Low Cost
For High Gain
High Vibration Absorption
Zero Backlash

XGS

Part Name

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Part Number

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Feature

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For High Gain
High Vibration Absorption
Zero Backlash

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Part Name

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Part Number

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Feature

For High Gain
High Vibration Absorption
Zero Backlash

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Part Name

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Part Number

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Feature

For High Gain
High Vibration Absorption
Zero Backlash

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