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ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo...

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T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key advantage is exceptional shock load capacity, which eliminates the need to oversize the reducer for that requirement. The dual pin housing of the ERH cycloidal provides the ability to adjust one wheel against the other, allowing us to reduce the output shaft backlash to less than 6 arc-minutes. Rolling contact contributes to minimal fric- tion and high efficiency. Torque transmission elements experi- ence compression—they do not shear. The long output shaft bearing span provides solid overhung load capability. The ERH is ideal for applications operating in heavier industrial envi- ronments, but requiring servomotor mounting and good accuracy. Its compactness offers advantages against helical gearing, which re- quires additional stages to achieve higher reduction ratios. Its high efficiency against worm gears allows our customers to downsize and still enjoy larger output power. The end result is longer service life and tremendous energy saving. ERH SERIES
Transcript
Page 1: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

T he ERH series is a compact, robust cycloidal reducer designed

for servo applications.This product features high reduction

ratios in a compact form factor. Its key advantage is exceptional

shock load capacity, which eliminates the need to oversize the

reducer for that requirement. The dual pin housing of the ERH

cycloidal provides the ability to adjust one wheel against the

other, allowing us to reduce the output shaft backlash to less

than 6 arc-minutes. Rolling contact contributes to minimal fric-

tion and high efficiency. Torque transmission elements experi-

ence compression—they do not shear. The long output shaft

bearing span provides solid overhung load capability.

The ERH is ideal for applications operating in heavier industrial envi-

ronments, but requiring servomotor mounting and good accuracy.

Its compactness offers advantages against helical gearing, which re-

quires additional stages to achieve higher reduction ratios. Its high

efficiency against worm gears allows our customers to downsize

and still enjoy larger output power. The end result is longer service

life and tremendous energy saving.

ERH SERIES

Page 2: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

ERH SERIES

High efficiency cycloidal reducer design

Exceptional shock load capacity

Various mounting options: Base, Flange, Ring, Hollow

Reduction ratios up to 71:1 offered in a single stage

Assembled in the USA

ERH

Page 3: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

412

ERH SERIES Cycloidal Reducer

ERH Series Features

6

32

5

4

1

1 Output shaft bearings

2 Internal pin housing

3 Internal pins

4 Wheels

5 Carrier pins

6 Eccentric roller bearings

Page 4: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

413

ERH

NIDEC-SHIMPO

ERH Series Model Code

* Motor mounting code

Backlash

Ratio: 11, 17, 29, 35, 47, 59, 71

Frame Size: B, C, D

Series

ERH − − −B 17 P 19HB16 B H− −

0 : 60 arc-minP : 6 arc-min

Mounting type:B: Base (foot)F: FlangeR: RingH: Hollow output

Mounting position:H: HorizontalD: Vertical downU: Vertical upC: CeilingL: Wall feet leftR: Wall feet right

* Please contact us to assign mounting code for your motor.

Page 5: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

414

ERH SERIES Cycloidal Reducer

ERH B Specifications

Frame Size B

Stage Single Stage

Ratio Units Note 11 17 29 35 47 59 71

Nominal Output Torque [Nm] *1 80 87 105 101 107 105 102

Maximum Acceleration Torque [Nm] *2 120 131 158 152 161 158 153

Emergency Stop Torque [Nm] *3 200 218 263 251 267 261 254

Nominal Output Torque (Precision) [Nm] *1 60 75 79 75 78 80 76

Maximum Acceleration Torque (Precision) [Nm] *2 90 113 118 113 117 120 114

Emergency Stop Torque (Precision) [Nm] *3 150 188 197 189 196 200 190

Nominal Input Speed [rpm] *4 3000

Maximum Input Speed [rpm] *5 4000

No Load Running Torque [Nm] *6 0.4

Permitted Radial Load [N] *7 4150 4750 5650 5690 5690 5690 5690

Permitted Axial Load [N] *8 2070 2380 2820 2840 2840 2840 2840

Maximum Radial Load [N] *9 5690

Maximum Axial Load [N] *10 2840

Moment of Inertia (≤Ø 19) [kgcm2] -- 0.705 0.958 0.916 0.916 0.916 0.916 0.916

Efficiency [%] *11 90

Torsional Rigidity [Nm/arcmin] *12 3.0 4.7 5.0 5.4 5.4 5.4 5.4

Backlash (Standard) [Arc-min] -- ≤ 60

Backlash (Precision) [Arc-min] -- ≤ 6

Noise Level [dB] *13 ≤ 71

Protection Class -- *14 IP41 (IP65)

Ambient Temperature [°C] -- 0-40

Permitted Housing Temperature [°C] -- 90

Lubrication -- -- Oil (=>2000rpm & Precision) / Grease (<2000rpm)

Weight [kg] *15 19

*1) At nominal input speed, service life is 10,000 hours

*2) The maximum torque when starting or stopping operation

*3) The maximum torque allowed under a stress situation (Permitted 1,000 times during service life)

*4) The average input speed

*5) The maximum intermittent input speed

*6) Torque at no load applied to the input shaft at nominal input speed

*7) At this load and nominal input speed, service life will be 20,000 hours. (The radial load applied to the output side shaft center)

*8) At this load and nominal input speed, service life will be 20,000 hours. (The axial load applied to the output side bearing)

*9) The maximum radial load that the gearbox can accept

*10) The maximum axial load that the gearbox can accept

*11) The efficiency at the nominal output torque rating

*12) This does not include lost motion

*13) Contact NIDEC-SHIMPO for the testing conditions and environment

*14) IP65 (wash-down) is available as an option. Contact NIDEC-SHIMPO for more details

*15) The weight may vary slightly between models

Page 6: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

415

ERH

NIDEC-SHIMPO

ERH B Dimensions

*1) Length will vary depending on motor

*2) Bushing will be inserted to adapt to input shaft

*3) Unit is in inches of measurement

Base MountBase Mount

B-19B (Base)

16

115

221.

5

145175

Ø15051 25(*1)

247

15

86 120

Ø19

8

0(*1

)

50(*1)

4-Ø12

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

B-19F (Flange)

Ø165

105

4 14

Ø20

0

Ø13

0

51247(*1)

4-Ø12 25(*1)

Ø19

8

0(*1

)

50(*1)

Flange Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

B-19R (Ring)

105

Ø10

8

60° Ø128

4-M8

Ø150

51

247(*1)

24

127

25(*1)

Ø19

8

0(*1

)

50(*1)

Ring Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

Ø85

8(H9)

27

6-M615 Depth

Ø1284-M8 26 Depth

Ø24

(H7)

Ø58

Ø71

Ø10

0

Ø10

8(h7

145

5

2 405

55

35

175(*1)

25(*1)

Ø19

8

0(*1

)

50(*1)

B-19H (Hollow)

Hollow Mount

60°

Flange Mount

Ring Mount

Hollow Mount

Ø85

8(H9)

27

6-M615 Depth

Ø1284-M8 26 Depth

Ø24

(H7)

Ø58

Ø71

Ø10

0

Ø10

8(h7

145

5

2 405

55

35

175(*1)

25(*1)

Ø19

8

0(*1

)

50(*1)

B-19H (Hollow)

Hollow Mount

60°

B-19F (Flange)

Ø165

105

4 14

Ø20

0

Ø13

0

51247(*1)

4-Ø12 25(*1)

Ø19

8

0(*1

)

50(*1)

Flange Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

B-19F (Flange)

Ø165

105

4 14

Ø20

0

Ø13

0

51247(*1)

4-Ø12 25(*1)

Ø19

8

0(*1

)

50(*1)

Flange Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

Base Mount

B-19B (Base)

16

115

221.

5

145175

Ø15051 25(*1)

247

15

86 120

Ø19

8

0(*1

)

50(*1)

4-Ø12

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

Base Mount

B-19B (Base)

16

115

221.

5

145175

Ø15051 25(*1)

247

15

86 120

Ø19

8

0(*1

)

50(*1)

4-Ø12

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

B-19R (Ring)

105

Ø10

8

60° Ø128

4-M8

Ø150

51

247(*1)

24

127

25(*1)

Ø19

8

0(*1

)

50(*1)

Ring Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

B-19R (Ring)

105

Ø10

8

60° Ø128

4-M8

Ø150

51

247(*1)

24

127

25(*1)

Ø19

8

0(*1

)

50(*1)

Ring Mount

Key 0.313x0.313x1.77 (*3)

Ø1.375Ø1.374 (*3)

Page 7: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

416

ERH SERIES Cycloidal Reducer

ERH C Specifications

Frame Size C

Stage Single Stage

Ratio Units Note 11 17 29 35 47 59 71

Nominal Output Torque [Nm] *1 173 233 249 276 286 286 285

Maximum Acceleration Torque [Nm] *2 260 350 374 414 429 429 428

Emergency Stop Torque [Nm] *3 434 583 622 690 715 715 713

Nominal Output Torque (Precision) [Nm] *1 122 175 187 207 214 214 214

Maximum Acceleration Torque (Precision) [Nm] *2 183 263 281 311 321 321 321

Emergency Stop Torque (Precision) [Nm] *3 306 437 467 517 536 536 535

Nominal Input Speed [rpm] *4 3000

Maximum Input Speed [rpm] *5 4000

No Load Running Torque [Nm] *6 0.9

Permitted Radial Load [N] *7 6270 7690 8670 9380 10140 10850 11560

Permitted Axial Load [N] *8 3130 3840 4330 4690 5070 5420 5780

Maximum Radial Load [N] *9 12270

Maximum Axial Load [N] *10 6130

Moment of Inertia (≤Ø 28) [kgcm2] -- 3.733 4.027 4.786 4.744 4.701 4.701 4.701

Efficiency [%] *11 90

Torsional Rigidity [Nm/arcmin] *12 6.2 11.2 11.9 12.6 12.6 12.6 12.6

Backlash (Standard) [Arc-min] -- ≤ 60

Backlash (Precision) [Arc-min] -- ≤ 6

Noise Level [dB] *13 ≤ 75

Protection Class -- *14 IP41 (IP65)

Ambient Temperature [°C] -- 0-40

Permitted Housing Temperature [°C] -- 90

Lubrication -- -- Oil (=>2000rpm & Precision) / Grease (<2000rpm)

Weight [kg] *15 43

*1) At nominal input speed, service life is 10,000 hours

*2) The maximum torque when starting or stopping operation

*3) The maximum torque allowed under a stress situation (Permitted 1,000 times during service life)

*4) The average input speed

*5) The maximum intermittent input speed

*6) Torque at no load applied to the input shaft at nominal input speed

*7) At this load and nominal input speed, service life will be 20,000 hours. (The radial load applied to the output side shaft center)

*8) At this load and nominal input speed, service life will be 20,000 hours. (The axial load applied to the output side bearing)

*9) The maximum radial load that the gearbox can accept

*10) The maximum axial load that the gearbox can accept

*11) The efficiency at the nominal output torque rating

*12) This does not include lost motion

*13) Contact NIDEC-SHIMPO for the testing conditions and environment

*14) IP65 (wash-down) is available as an option. Contact NIDEC-SHIMPO for more details

*15) The weight may vary slightly between models

Page 8: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

417

ERH

NIDEC-SHIMPO

ERH C Dimensions

*1) Length will vary depending on motor

*2) Bushing will be inserted to adapt to input shaft

*3) Unit is in inches of measurement

Base Mount

180220

22

140

264

Ø190

20

103.5 150

63.5

312(*1)

35(*1)

1

00(*

1)

Ø28

67(*1)

4-Ø15

C-28B (Base)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

126

Ø215

4-Ø15 63.5

312(*1)

Ø18

0 (h

7)

Ø25

0

4 18

35(*1)

1

00(*

1)

Ø28

67(*1)

C-28F (Flange)

Flange Mount

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

126

60° Ø162

4-M10

Ø13

6 (h

7)

63.5

35

157.5

311(*1)

Ø190

35(*1)

1

00(*

1)

Ø28

67(*1)

Ring Mount

C-28R (Ring)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

C-28H (Hollow)

Ø106

10

123.

5

35

60°

6-M820 Depth

Ø32

(H7)

2-M1037 Depth

535

2 47.5

65.5

219(*1)

Ø67

Ø85

Ø12

5

Ø13

6(h7

)

Ø18

5

Ø162

35(*1)

1

00(*

1)

Ø28

67(*1)

Hollow Mount

Base Mount

Flange Mount

Ring Mount

Hollow Mount

126

Ø215

4-Ø15 63.5

312(*1)

Ø18

0 (h

7)

Ø25

0

4 18

35(*1)

1

00(*

1)

Ø28

67(*1)

C-28F (Flange)

Flange Mount

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

126

Ø215

4-Ø15 63.5

312(*1)

Ø18

0 (h

7)

Ø25

0

4 18

35(*1)

1

00(*

1)

Ø28

67(*1)

C-28F (Flange)

Flange Mount

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

126

60° Ø162

4-M10

Ø13

6 (h

7)

63.5

35

157.5

311(*1)

Ø190

35(*1)

1

00(*

1)

Ø28

67(*1)

Ring Mount

C-28R (Ring)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

126

60° Ø162

4-M10

Ø13

6 (h

7)

63.5

35

157.5

311(*1)

Ø190

35(*1)

1

00(*

1)

Ø28

67(*1)

Ring Mount

C-28R (Ring)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

Base Mount

180220

22

140

264

Ø190

20

103.5 150

63.5

312(*1)

35(*1)

1

00(*

1)

Ø28

67(*1)

4-Ø15

C-28B (Base)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

Base Mount

180220

22

140

264

Ø190

20

103.5 150

63.5

312(*1)

35(*1)

1

00(*

1)

Ø28

67(*1)

4-Ø15

C-28B (Base)

Key 0.375x0.375x2.16 (*3)

Ø1.750Ø1.749 (*3)

C-28H (Hollow)

Ø106

10

123.

5

35

60°

6-M820 Depth

Ø32

(H7)

2-M1037 Depth

535

2 47.5

65.5

219(*1)

Ø67

Ø85

Ø12

5

Ø13

6(h7

)

Ø18

5

Ø162

35(*1)

1

00(*

1)

Ø28

67(*1)

Hollow Mount

Page 9: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

418

ERH SERIES Cycloidal Reducer

ERH D Specifications

Frame Size D

Stage Single Stage

Ratio Units Note 11 17 29 35 47 59 71

Nominal Output Torque [Nm] *1 383 495 533 570 633 609 582

Maximum Acceleration Torque [Nm] *2 575 743 800 855 950 914 873

Emergency Stop Torque [Nm] *3 957 1,240 1,330 1,420 1,580 1,520 1,460

Nominal Output Torque (Precision) [Nm] *1 287 349 376 402 447 430 411

Maximum Acceleration Torque (Precision) [Nm] *2 431 524 564 603 671 645 617

Emergency Stop Torque (Precision) [Nm] *3 718 872 940 1,010 1,120 1,070 1,030

Nominal Input Speed [rpm] *4 3000

Maximum Input Speed [rpm] *5 4000

No Load Running Torque [Nm] *6 1.9

Permitted Radial Load [N] *7 11960 13740 15920 16630 18060 20240 20950

Permitted Axial Load [N] *8 5980 6870 7960 8310 9030 10120 10470

Maximum Radial Load [N] *9 22420

Maximum Axial Load [N] *10 11210

Moment of Inertia (≤Ø 28) [kgcm2] -- 5.08 7.21 7.88 7.71 7.71 7.71 7.54

Moment of Inertia (≤ Ø 38) [kgcm2] -- 7.75 11.00 12.01 11.75 11.75 11.75 11.50

Efficiency [%] *11 90

Torsional Rigidity [Nm/arcmin] *12 17.8 23.0 25.2 27.4 27.4 27.4 27.4

Backlash (Standard) [Arc-min] -- ≤ 60

Backlash (Precision) [Arc-min] -- ≤ 6

Noise Level [dB] *13 ≤ 78

Protection Class -- *14 IP41 (IP65)

Ambient Temperature [°C] -- 0-40

Permitted Housing Temperature [°C] -- 90

Lubrication -- -- Oil

Weight [kg] *15 68

*1) At nominal input speed, service life is 10,000 hours

*2) The maximum torque when starting or stopping operation

*3) The maximum torque allowed under a stress situation (Permitted 1,000 times during service life)

*4) The average input speed

*5) The maximum intermittent input speed

*6) Torque at no load applied to the input shaft at nominal input speed

*7) At this load and nominal input speed, service life will be 20,000 hours. (The radial load applied to the output side shaft center)

*8) At this load and nominal input speed, service life will be 20,000 hours. (The axial load applied to the output side bearing)

*9) The maximum radial load that the gearbox can accept

*10) The maximum axial load that the gearbox can accept

*11) The efficiency at the nominal output torque rating

*12) This does not include lost motion

*13) Contact NIDEC-SHIMPO for the testing conditions and environment

*14) IP65 (wash-down) is available as an option. Contact NIDEC-SHIMPO for more details

*15) The weight may vary slightly between models

Page 10: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

419

ERH

NIDEC-SHIMPO

ERH D Dimensions (Input Bore ≤Ø 28)

*1) Length will vary depending on motor

*2) Bushing will be inserted to adapt to input shaft

*3) Unit is in inches of measurement

D-28B (Base)

225

275

379(*1)

Ø235

25

135 180

95

26

165

322

63(*1)

Ø28

100

(*1)

35(*1)

4-Ø19

Base Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

Ø23

0 (h

7)

Ø30

0

5 22

95

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)

157

Ø265

8-Ø15

D-28F (Flange)

Flange Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

45°

22.5°

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)22.5°

D-28R (Ring)

Ring Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

Base Mount

Flange Mount

Ring Mount

Hollow Mount

51.5

8-M10 22 Depth

Ø140 Ø210

14 6-M1032 Depth

Ø48

(H7)

Ø95

Ø16

5

Ø18

2(h7

)

Ø23

0

6

5

309(*1)

2 72.5

99

Ø12

2

63(*1)

Ø28

100

(*1)

35(*1)

D-28H (Hollow)

Hollow Mount

45°

22.5°

90°

D-28B (Base)

225

275

379(*1)

Ø235

25

135 180

95

26

165

322

63(*1)

Ø28

100

(*1)

35(*1)

4-Ø19

Base Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

D-28B (Base)

225

275

379(*1)

Ø235

25

135 180

95

26

165

322

63(*1)

Ø28

100

(*1)

35(*1)

4-Ø19

Base Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

Ø23

0 (h

7)

Ø30

0

5 22

95

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)

157

Ø265

8-Ø15

D-28F (Flange)

Flange Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

45°

22.5°

Ø23

0 (h

7)

Ø30

0

5 22

95

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)

157

Ø265

8-Ø15

D-28F (Flange)

Flange Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

45°

22.5°

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)22.5°

D-28R (Ring)

Ring Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

379(*1)

63(*1)

Ø28

100

(*1)

35(*1)22.5°

D-28R (Ring)

Ring Mount

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

51.5

8-M10 22 Depth

Ø140 Ø210

14 6-M1032 Depth

Ø48

(H7)

Ø95

Ø16

5

Ø18

2(h7

)

Ø23

0

6

5

309(*1)

2 72.5

99

Ø12

2

63(*1)

Ø28

100

(*1)

35(*1)

D-28H (Hollow)

Hollow Mount

45°

22.5°

90°

Page 11: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

420

ERH SERIES Cycloidal Reducer

ERH D Specifications

Frame Size D

Stage Single Stage

Ratio Units Note 11 17 29 35 47 59 71

Nominal Output Torque [Nm] *1 383 495 533 570 633 609 582

Maximum Acceleration Torque [Nm] *2 575 743 800 855 950 914 873

Emergency Stop Torque [Nm] *3 957 1,240 1,330 1,420 1,580 1,520 1,460

Nominal Output Torque (Precision) [Nm] *1 287 349 376 402 447 430 411

Maximum Acceleration Torque (Precision) [Nm] *2 431 524 564 603 671 645 617

Emergency Stop Torque (Precision) [Nm] *3 718 872 940 1,010 1,120 1,070 1,030

Nominal Input Speed [rpm] *4 3000

Maximum Input Speed [rpm] *5 4000

No Load Running Torque [Nm] *6 1.9

Permitted Radial Load [N] *7 11960 13740 15920 16630 18060 20240 20950

Permitted Axial Load [N] *8 5980 6870 7960 8310 9030 10120 10470

Maximum Radial Load [N] *9 22420

Maximum Axial Load [N] *10 11210

Moment of Inertia (≤Ø 28) [kgcm2] -- 5.08 7.21 7.88 7.71 7.71 7.71 7.54

Moment of Inertia (≤ Ø 38) [kgcm2] -- 7.75 11.00 12.01 11.75 11.75 11.75 11.50

Efficiency [%] *11 90

Torsional Rigidity [Nm/arcmin] *12 17.8 23.0 25.2 27.4 27.4 27.4 27.4

Backlash (Standard) [Arc-min] -- ≤ 60

Backlash (Precision) [Arc-min] -- ≤ 6

Noise Level [dB] *13 ≤ 78

Protection Class -- *14 IP41 (IP65)

Ambient Temperature [°C] -- 0-40

Permitted Housing Temperature [°C] -- 90

Lubrication -- -- Oil

Weight [kg] *15 68

*1) At nominal input speed, service life is 10,000 hours

*2) The maximum torque when starting or stopping operation

*3) The maximum torque allowed under a stress situation (Permitted 1,000 times during service life)

*4) The average input speed

*5) The maximum intermittent input speed

*6) Torque at no load applied to the input shaft at nominal input speed

*7) At this load and nominal input speed, service life will be 20,000 hours. (The radial load applied to the output side shaft center)

*8) At this load and nominal input speed, service life will be 20,000 hours. (The axial load applied to the output side bearing)

*9) The maximum radial load that the gearbox can accept

*10) The maximum axial load that the gearbox can accept

*11) The efficiency at the nominal output torque rating

*12) This does not include lost motion

*13) Contact NIDEC-SHIMPO for the testing conditions and environment

*14) IP65 (wash-down) is available as an option. Contact NIDEC-SHIMPO for more details

*15) The weight may vary slightly between models

Page 12: ERH SERIES T · T he ERH series is a compact, robust cycloidal reducer designed for servo applications.This product features high reduction ratios in a compact form factor. Its key

421

ERH

NIDEC-SHIMPO

ERH D Dimensions (Input Bore ≤Ø 38)

*1) Length will vary depending on motor

*2) Bushing will be inserted to adapt to input shaft

*3) Unit is in inches of measurement

Base Mount

Flange Mount

Ring Mount

Hollow Mount

225

275

384(*1)

Ø235

25

135 180

95

26

165

322

4-Ø19

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

157

Ø265

Ø23

0 (h

7)

Ø30

0

5 22

95

384(*1)

8-Ø15

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

384(*1)

22.5°

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

6-M10

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

51.5

8-M10 22 Depth

Ø140 Ø210

1432 Depth

Ø48

(H7)

Ø95

Ø16

5

Ø18

2(h7

)

Ø23

0

6

5

314(*1)

2 72.5

99

Ø12

2

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

384(*1)

22.5°

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

157

45°

90°

Ø210

Ø235

6-M10

Ø18

2 (h

7)

95

169.2530

384(*1)

22.5°

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

225

275

384(*1)

Ø235

25

135 180

95

26

165

322

4-Ø19

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

225

275

384(*1)

Ø235

25

135 180

95

26

165

322

4-Ø19

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)

6-M10

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

51.5

8-M10 22 Depth

Ø140 Ø210

1432 Depth

Ø48

(H7)

Ø95

Ø16

5

Ø18

2(h7

)

Ø23

0

6

5

314(*1)

2 72.5

99

Ø12

2

157

Ø265

Ø23

0 (h

7)

Ø30

0

5 22

95

384(*1)

8-Ø15

Ø38

(*2)

13

0(*1

)

82(*1)

40(*1)

Key 0.625x0.625x2.95 (*3)

Ø2.500Ø2.499 (*3)

3/8-16UNC0.71 Depth (*3)


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