Precision Reducer

SH Series

Advantage

  • Low backlash
  • High positional accuracy & repeatability
  • compact design
  • high torque
  • Quiet operation
  • Low maintenance
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application areas

  • Robotics
  • Factory automation
  • Aerospace
  • Semiconductor
  • Medical
  • Optical machines
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Ordering Information

1 Series Name C: Cup type
S: Silk hat
2 Torque F: Normal
G: High torque
D: Compact
3 Number 14
17
20
25
32
4 Ratio 050: 1/50
080: 1/80
100: 1/100
120: 1/120
160: 1/60
5 Type C: Component
U: Unit
S: Simple unit
6 Input option H: Hollow
J: Input shaft
N: Normal
7 Special type

Coding example

Specifications

  • Component Cup Type

No. 14 17 20 25 32
Ratio 50 80 100 50 80 100 120 50 80 100 120 50 80 100 120 50 80 100 120
Rated torque 7 9 9 21 26 28 28 33 40 47 47 51 66 70 70 89 122 142 142
Allowable torque 23 27 32 44 50 63 63 73 83 96 96 127 142 163 163 253 316 346 346
Maximum torque 46 55 63 91 101 129 129 127 149 172 172 242 266 295 295 447 590 673 673
Transmission
angular accuracy		 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Hysteresis loss 2.0 1.5 1.5 2.0 1.5 1.5 1.5 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0
Rated input
rotational speed (rpm)		 3,000 3,000 3,000 3,000 3,000
Permissible max.
input rotational speed		 8,500 7,300 6,500 5,600 4,800
Inertia moment
(x10-4kgm2)		 0.038 0.085 0.207 0.544 1.630
Weight (kg) 0.10 0.20 0.26 2.43 0.91

 

  • Unit Cup Type

No. 14 17 20 25 32
Ratio 50 80 100 50 80 100 120 50 80 100 120 50 80 100 120 50 80 100 120
Rated torque 7 9 9 21 26 28 28 33 40 47 47 51 66 70 70 89 122 142 142
Allowable torque 23 27 32 44 50 63 63 73 83 96 96 127 142 163 163 253 316 346 346
Maximum torque 46 55 63 91 101 129 129 127 149 172 172 242 266 295 295 447 590 673 673
Transmission
angular accuracy		 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Hysteresis loss 2.0 1.5 1.5 2.0 1.5 1.5 1.5 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0
Rated input
rotational speed (rpm)		 3,000 3,000 3,000 3,000 3,000
Permissible max.
input rotational speed		 8,500 7,300 6,500 5,600 4,800
Inertia moment
(x10-4kgm2)		 0.037 0.085 0.207 0.544 1.630
Weight (kg) 0.50 0.68 0.95 1.5 3.3

 

  • Unit Silk Hat Hollow Shaft Type

No. 14 17 20 25 32
Ratio 50 80 100 50 80 100 120 50 80 100 120 50 80 100 120 50 80 100 120
Rated torque 7 9 9 21 26 28 28 33 40 47 47 51 66 70 70 89 122 142 142
Allowable torque 23 27 32 44 50 63 63 73 83 96 96 127 142 163 163 253 316 346 346
Maximum torque 46 55 63 91 101 129 129 127 149 172 172 242 266 295 295 447 590 673 673
Transmission
angular accuracy		 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Hysteresis loss 2.0 1.5 1.5 2.0 1.5 1.5 1.5 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0
Rated input
rotational speed (rpm)		 3,000 3,000 3,000 3,000 3,000
Permissible max.
input rotational speed		 8,500 7,300 6,500 5,600 4,800
Inertia moment
(x10-4kgm2)		 0.103 0.230 0.460 1.240 3.180
Weight (kg) 0.57 0.79 1.1 1.7 3.4

 

  • Simple Unit Silk Hat Type

No. 14 17 20 25 32
Ratio 50 80 100 50 80 100 120 50 80 100 120 50 80 100 120 50 80 100 120
Rated torque 7 9 9 21 26 28 28 33 40 47 47 51 66 70 70 89 122 142 142
Allowable torque 23 27 32 44 50 63 63 73 83 96 96 127 142 163 163 253 316 346 346
Maximum torque 46 55 63 91 101 129 129 127 149 172 172 242 266 295 295 447 590 673 673
Transmission

angular accuracy

 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Hysteresis loss 2.0 1.5 1.5 2.0 1.5 1.5 1.5 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0
Rated input

rotational speed (rpm)

 3,000 3,000 3,000 3,000 3,000
Permissible max.

input rotational speed

 8,500 7,300 6,500 5,600 4,800
Inertia moment

(x10-4kgm2)

 0.039 0.087 0.209 0.549 1.650
Weight (kg) 0.39 0.55 0.79 1.3 2.7

 

  • Unit Silk Hat Shaft Input Type

No. 14 17 20 25 32
Ratio 50 80 100 50 80 100 120 50 80 100 120 50 80 100 120 50 80 100 120
Rated torque 7 9 9 21 26 28 28 33 40 47 47 51 66 70 70 89 122 142 142
Allowable torque 23 27 32 44 50 63 63 73 83 96 96 127 142 163 163 253 316 346 346
Maximum torque 46 55 63 91 101 129 129 127 149 172 172 242 266 295 295 447 590 673 673
Transmission
angular accuracy		 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Hysteresis loss 2.0 1.5 1.5 2.0 1.5 1.5 1.5 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0
Rated input
rotational speed (rpm)		 3,000 3,000 3,000 3,000 3,000
Permissible max.
input rotational speed		 8,500 7,300 6,500 5,600 4,800
Inertia moment
(x10-4kgm2)		 0.037 0.089 0.208 0.554 1.740
Weight (kg) 0.48 0.69 1.0 1.6 3.2

Operating principle

Operation Principle

  • The teeth of FLEXSPLINE are interlocked with the teeth of C/S at the top and bottom, and completely separated from the left and right.
  • When INPUT SHAFT is turned to the left(CCW), the F/S is elastically deformed and engages with the teeth of C/S and moves to the right (CW).
  • When C/S rotates in the direction of 180° CCW, one teeth of F/S moves in the CW direction.

Rotation direction and reduction ratio

Dimensions

Component Cup Type

Unit Cup Type

Unit Silk Hat Hollow Shaft Type

Simple Unit Silk Hat Type

Unit Silk Hat Shaft Input Type