RU160 Dimensions
RU160

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=24〕

Unit：mm225
220200330300(12)M10×1.5, 20DP
282812015165°516※3405
160

4350
φ135 -0.04
φ200
φ328

φ125 +0.04(20DP)
02.5
φ125.5

φ200

φ125 +0.04(20DP)
015°11×30※3210(4)M12×1.75, 24DP

265

32.5100170※1 For detailed dimensions, refer to the standard specifications on our website.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection Chartfor Standard Gear Ratio Models on the following page.
※4 Use the product code to specify the position of the access hole in themotor bracket. (Refer to P.4)

Motor bracket60□180(4)Φ14 THRU

15(2×(4)Φ14)

30

30

1530

110

Output table

RU160

High Gear Ratio Model Dimension Drawings〔Gear ratio=72〕

28225
220
200

28

15165°※3516※3214.1

295

435
405
160

0
φ135 -0.04
φ200
φ328

φ125 +0.04(20DP)
02.5
φ125.5

φ200

15°11×30
φ125 +0.04(20DP)
0Unit：mm

445330300(12)M10×1.5, 20DP

(4)M12×1.75, 24DP

265

1521060

Gear box

32.5190(4)Φ14 THRU

17030

1530

(2×(4)Φ14)

30110

Output table

515100※1 For detailed dimensions, refer to the standard specifications on our website.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection Chartfor High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)

7

RU160 Dimensions
RU160

Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=24] Without Attachment

Unit：mm33(4)M6×1, 12DP

3120018

φ380

φ32 -0.025(4)M12×1.75, 24DP

Attachment Code Selection Chart Standard Gear Ratio Models [Gear ratio=24] With Attachment RU160
Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfh

Attachment
codeA□eB□dabc

φ35 +0.0100
φ35 -0.0160

Less than φ114.3
φ90dLessthan7ef

Less than 79〜80
47.8ghMax motortorque200(4)M12×1.75, 20DP

160N・mφ42 -0.0160※1 The most common servomotors suitable for these models are given on page 19.

φcφbφag

Motor mounting dimensions on the RU

Mountable Motor Dimensions

Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=72] With Attachment

RU160

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Attachment
codeaASφ24 -0.0210

eBS

φ28 -0.0210

dCS

φ35 +0.0100

DS

φ35 -0.0160

Unit：mmfhgcde

φ110Less than
φ100fgh

40〜65 145

(4)M8×1.25, 16DP

40〜80 200(4)M12×1.75, 24DP

Less than Less than1012
φ114.3

Mountable Motor Dimensions

8Max motor
torque80N・m※1 The most common servomotors suitable for these models are given on pages 20 to 21.
φcφbφaMotor mounting dimensions on the RUb

RU200 Dimensions
RU200

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=30〕

Unit：mm230
22520028410380(16)M10×1.5, 20DP28※515205

235515485※3200

0φ210 -0.046
φ260
φ408

φ200+0.046(20DP)
0φ200.5

φ260
φ200+0.046(20DP)
02.5°.522×15°
11.25※3(4)M12×1.75, 24DP

34035100※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for Standard Gear Ratio Models on the following page.
※4 Use the product code to specify the position of the access hole in themotor bracket. (Refer to P.4)

Motor bracket

60□180290

170(4)Φ14 THRUAttachment ※5 Dimensions
codeA□B□15301530(2×(4)Φ14)

30110

Output table

C□28410380(16)M10×1.5, 20DP

15205

※3※3214.1

295

200515485

0φ210 -0.046
φ260
φ408

φ200+0.046(20DP)
0φ200.5523°.52.5

22×15°
11.25
φ260
φ200+0.046(20DP)
0Unit：mm

540

28290

(4)M12×1.75, 24DP

340

60

Gear box

35190

170

(4)Φ14 THRU

151530(2×(4)Φ14)

30110

Output table

30166

RU200

High Gear Ratio Model Dimension Drawings〔Gear ratio=90〕230
225200132515100※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection Chartfor High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)

9

RU200 Dimensions
Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=30] Without Attachment

RU200
Unit：mm4543(4)M6×1, 12DP

φ390φ35 -0.025(4)M12×1.75, 24DP

20020Attachment Code Selection Chart Standard Gear Ratio Models [Gear ratio=30] With Attachment RU200
Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfhAttachment
codeA□e
B□dC□

abcd

φ35 +0.0100
φ35 -0.0160

Less than φ114.3
φ90

Lessthan70
φ42 -0.016

ef

Less than 79〜80
47.8g

hMax motor
torque200(4)M12×1.75, 20DP

160N・mLess than
81.8 112〜113※1 The most common servomotors suitable for these models are given on pages 22 to 23.
φcφbφag

Motor mounting dimensions on the RUMountable Motor Dimensions

Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=90] With Attachment

RU200

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Attachment
codeaASφ24 -0.0210

eBS

φ28 -0.0210

dCS

φ35 +0.0100

DS

φ35 -0.0160

Unit：mm

fhgcd

φ110
Less than
φ100

Less than10
φ114.3efgh

Less than 40〜65
11.5

145

(4)M8×1.25, 16DP

Less than
40〜8012200 (4)M12×1.75, 24DP

Mountable Motor Dimensions

10Max motor
torque125N・m※1 The most common servomotors suitable for these models are given on pages 23 to 24.
φcφbφaMotor mounting dimensions on the RUbRU250 Dimensions
RU250

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=30〕

Unit：mm

310
300
260(16)M12×1.75, 24DP35※52011.25° 15×22.5°

528
650
575
250

0
φ260 -0.052
φ310
φ507

φ250 +0.046(20DP)
0

φ250.5

φ310
φ250 +0.046(20DP)
02.540
255

40

35

510
39040※3※3180

100(8)M12×1.75, 24DP140140

14045130※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for Standard Gear Ratio Models on the following page.
※4 Use the product code to specify the position of the access hole in themotor bracket. (Refer to P.4)

Motor bracket

65□180100225(8)Φ14 THRU

B□
C□

650
(16)M12×1.75, 24DP

40390

205° 15×2

11.2

2.5°

528

※3※3(8)Φ14 THRU

100

180100(8)M12×1.75, 24DP

14014014065
Gear box455130250

22517.5※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)

15

1535

(2×(4)Φ14)

30140

Output table

375

270.2

6505752500
φ260 -0.052
φ310φ507

φ250 +0.046(20DP)
02.5

40255

40

35

φ250.5φ310
φ250 +0.046(20DP)
0166

Unit：mm

310300260

35132

RU250High Gear Ratio Model Dimension Drawings〔Gear ratio=100〕

35Attachment ※5 Dimensions
codeA□

17.535(2×(4)Φ14)

351530140

Output table

11RU250 Dimensions
Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=30] Without Attachment

RU250
Unit：mm(4)M6×1, 12DP45(4)M12×1.75, 24DP

0φ65

φ42 -0.025

43270
28

Attachment Code Selection Chart Standard Gear Ratio Models [Gear ratio=30] With Attachment RU250
Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfhAttachment
codeA□eB□dC□

abcde−

φ114.3

Less than
47.8−

fghMax motortorqueφ35 +0.0100
φ35 -0.0160
0φ42 -0.016

Less than
81.8

79〜80

200 (4)M12×1.75, 20DP

180N・m112〜113※1 The most common servomotors suitable for these models are given on page 25.
φcφbφag

Motor mounting dimensions on the RU

Mountable Motor Dimensions

Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=100] With Attachment

RU250

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfhedAttachment
codeaAS

φ35 +0.0100

BSφ35 -0.0160−cd

φ114.3 Less than
7.5ef

−40〜80gφc
φbφa
Mountable Motor Dimensions

12h200 (4)M12×1.75, 24DP

※1 The most common servomotors suitable for these models are given on page 26.

g

Motor mounting dimensions on the RUbMax motor
torque110N・m

RU315 Dimensions
RU315

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=32〕

Unit：mm

350
340
3005531573

111.25° 5×22.5°038(4)M6×1, 12DP

0φ335 -0.057
φ425
φ6250
φ50 -0.025805(4)M12×1.75, 24DP710
315

φ315 +0.052(20DP)05
φ315.5

φ480

φ315 +0.052(20DP)
055

16×M16 深さ3275
20φ75

4055

40630
480

300

30402040(2×(8)Φ18)

40

175

Output table(8)Φ18 THRU

240

120

75

180180180

45150

260(8)M16×2, 32DP12020※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.

RU315

High Gear Ratio Model Dimension Drawings〔Gear ratio=120〕
350
340
300

(16)M16×2, 32DP

405520111.25° 5×22.5°

0380φ335 -0.057
φ425φ625※3805710
315(8)Φ18 THRU

751801801804530120

Gear box

29015020※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)240

260(8)M16×2, 32DP

120

5402040(2×(8)Φ18)

40175

Output table390※3308.2

φ315 +0.052(20DP)
0φ315.5

φ480

φ315 +0.052(20DP)
0555
315

55

40

Unit：mm

785630480

13

RU315 Dimensions
Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=32] Without Attachment

RU315
Unit：mm(4)M6×1, 12DP75(4)M12×1.75, 24DP

0φ75

φ50 -0.025

73300
30Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=120] With Attachment

RU315

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfhedAttachment
codeaAS

φ35 +0.0100

BSφ35 -0.0160

cde−

φ114.3

Less than5−

fg

φc
φb
φa
Mountable Motor Dimensions

14h40〜80 200 (4)M12×1.75, 24DP

※1 The most common servomotors suitable for these models are given on page 27.

g

Motor mounting dimensions on the RUbMax motor
torque150N・m

RU400 Dimensions
RU400

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=36〕

Unit：mm370360320(24)M16×2, 32DP

132.5

45400

132.5

0540

φ500 -0.063
φ580
φ785

980

(4)M6×1, 12DP
(4)M16×2, 32DP

φ850

φ50 -0.025

815
400

φ470 +0.063(20DP)
0φ470.5

φ580
φ470 +0.063(20DP)
02.5

55
17.5
53

7.5° 23×15°

132.5

45

800
500

340

30200(8)Φ18 THRU
(8)M16×2, 32DP

200

250

200

200200

75

100

160

275

45

1545

(2×(4)Φ18)

30175

Output table22.5※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.

RU400

High Gear Ratio Model Dimension Drawings〔Gear ratio=120〕(24)M16×2, 32DP

800
500

132.5

40045132.5

17.57.5° 23×15°

054980※3※320075
Gear box

200200100

30020016010※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)

250275(8)M16×2, 32DP

20025175(8)Φ18 THRU

22.5

451545(2×(4)Φ18)

30

Output table

450

331.2815
400

φ470 +0.063(20DP)00
φ500 -0.063
φ580
φ785

2.5
φ470.5

φ580
φ470 +0.063(20DP)
0132.545

Unit：mm

960

370
360
32015

RU400 Dimensions
Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=36] Without Attachment

RU400
Unit：mm(4)M6×1, 12DP55(4)M16×2, 32DP0φ85

φ50 -0.025

53340
30

Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=120] With Attachment

RU400

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmfhedAttachment
codeaAS

φ35 +0.0100

BS

φ35 -0.0160

CS

φ42 -0.0160

cdefLess thanLess than Less than50〜80
φ110 φ114.3 7.5
10gφcφb
φaMountable Motor Dimensions

16h200 (4)M12×1.75, 24DP

※1 The most common servomotors suitable for these models are given on page 28.

gMotor mounting dimensions on the RUbMax motor
torque235N・mRU500 Dimensions
RU500

Standard Gear Ratio Model Dimension Drawings〔Gear ratio=40〕
175(24)M20×2.5, 40DP

50

7.5° 23×15°

01200
975
500

(4)M16×2, 32DP
(6)M8×1.25, 16DP0
φ60 -0.03

φ600.593700

φ640 -0.08
φ770
φ995

φ600 +0.07(25DP)
0

φ810
φ600 +0.07(25DP)
05

175

95
25500

17550

Unit：mm
1000
600

0

φ90405395
340

4035(8)Φ22 THRU

200

350

200

(8)M20×2.5, 40DP

280

280

280

12580

170

290

50

2550(2×(8)Φ22)

50200

Output table25※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.

RU500

High Gear Ratio Model Dimension Drawings〔Gear ratio=150〕(24)M20×2.5, 40DP

1757.5° 23×15

25°

7000

φ640 -0.08
φ770φ995※31200975500※3200342.7

φ600 +0.07(25DP)
05

175
500

35350

200

(8)M20×2.5, 40DP

280

280280

Gear box

801705※1 For detailed dimensions, refer to the standard specifications on ourwebsite.
http://www.sankyo-seisakusho.co.jp/download/size/index.html※2 Customer to provide servomotor.
※3 These dimensions can be found in the Attachment Code Selection
Chart for High Gear Ratio Models on the following page.
※4 The access hole for the gear box is located on side S. (Refer to P.4)

125

330

200290(8)Φ22 THRU

25502550(2×(8)Φ22)

50

Output table

465

50

φ600.5

φ810
φ600 +0.07(25DP)
0Unit：mm

1300
1000
600

175

50405
395
340

17RU500 Dimensions
RU500

Input Shaft Detailed Drawing Standard Gear Ratio Models [Gear ratio=40] Without Attachment

Unit：mm(6)M8×1.25, 16DP95930φ90φ60 -0.03(4)M16×2, 32DP

350

40Attachment Code Selection Chart High Gear Ratio Models [Gear ratio=150] With Attachment

RU500

Check the dimensions for a to h in the diagram below, and choose the proper attachment code.
Unit：mmAS

fhAttachment
codeedBSCSg

φcφbφaDS

Motor mounting dimensions on the RU

abcde

fg

−

79〜80200h

Max motor
torque(4)M12×1.75, 24DP235N・m

φ35 +0.0100
φ35 -0.0160−

φ114.3 Less than
490φ42 -0.016

φ55 -0.0190

Less than
φ170

φ200

Less than4985
79〜80235※1 The most common servomotors suitable for these models are given on page 29.

Mountable Motor Dimensions

18