RollerDrive RW

High-speed Rotary Positioner for Welding Machines RollerDrive ® RW series

1. 5 sec/18 0° ※ （2000kg） ※With a moment of inertia of 600kg/m2. Sankyo's Rotary Positioner for Welding Machines Offers Unsurpassed Speed and Durability

The RollerDrive RW Series is a positioner for welding machines. It holds up against shocks that are caused by high-speed posi- tioning and emergency stopping of heavy loads. The oversized hollow output shaft simplifies wiring and plumb- ing to the equipment to be mounted on the output shaft. The low-profile body allows for compact equipment design.

Features of the RW Series ● Super high-speed positioning (180° indexing time) : 1.5 sec/2000 kg [RW320] ※With a moment of inertia of 600 kg/m2.

● Oversized hollow shaft 360 mm [RW320]

● Thin-profile body 295 mm [RW320]

● Tough against impact from emergency stops

Theory of Operation Roller gear mechanism The RollerDrive is a positioner that uses a roller gear mechanism, one of the finest motion control mechanisms available. The unit consists of an input shaft (roller gear cam) and a turret (output shaft) that are equipped with roller Output shaft （Turret） followers. The roller followers are preloaded by the screw on the input shaft, to eliminate backlash. Our proprietary adjustment mechanism provides the optimum preload. The roller followers in the turret use internal roller bearings to transfer torque while rotating. This mechanism ensures zero backlash, precision, and efficiency while preventing wear. It also provides long-term, consistent accuracy. Roller followers Input shaft The servomotor drive delivers unparalleled, ultimate motion control.

Preload mechanism

Output sshaft Roller followers

CamC

Input shaft

1 Model Code Model Code RW 240 - 120 R 1 T A R ①② ③④⑤⑥ ⑦ ⑧

④ Position of input ⑧ Connector position ① Model ② Size ③ Gear ratio ⑤ Mounting position ⑥ Servomotor position ⑦ Type of servomotor reducer access hole on servomotor 72 T：S t a n d a r d R：Special order 170 R Mounts on right side A 216 1 S：Special order （High gear ratio※） S U：Mounts on left side B V：Special order V D RW 5 W：Special order 240 120 W T：S t a n d a r d E Z : For gear ratios 9：Special order Mounts on right side F Z：S t a n d a r d 360 Customer to mount 320 （High gear ratio※） 72 and 120 X servomotor

※ Input gear reducer is mounted on models with high gear ratios.

③Input reducer Manufacture Model No. Gear ratio Weight VRS-100C-3-S3-38KA35 1/3 8.1kg NIDEC-SHIMPO CORPORATION VRS-140C-3-S3-48KA42 ※RW320/Special for Yaskawa Electric motors 1/3 17kg

④Position of input reducer access hole R S VWZ S S V V

For gear ratios 72 and 120 S W W R V W On side R On side SR On side VR On side W

⑤Mounting position RollerDrive Surfaces

1 5 9 Standard gear ratio model High gear ratio model T S V T S V

Special order

Servomotor Servomotor ※Ask Sankyo. U Motor base Input reducer R U Motor base W RollerDrive body R W surface on bottom R surface on bottom W RollerDrive body ※ Shown with sevo motor on“T”surface ⑦Type of servomotor Code Model Manufacture Model No. Capacity（kw） RW170 SGMGV-30A3A2E 2.9 A RW240 Yaskawa Electric（Σ-Ⅴ） SGMGV-44A3A2E 4.4 RW320 SGMGV-75A3A2E 7.5 RW170 SGM7G-30A7A2E 2.9 B RW240 Yaskawa Electric (Σ-7) SGM7G-44A7A2E 4.4 RW320 SGM7G-75A7A2E 7.5 RW170 HG-SR352BJ 3.5 D RW240 Mitsubishi Electric (J4) HG-SR502BJ 5.0 RW320 HG-SR702BJ 7.0 RW170 αiF12/4000-B（A06B-2243-B400) 3.0 E RW240 FANUC αiF22/4000-B（A06B-2248-B400) 4.0 RW320 αiF30/4000-B（A06B-2253-B400) 7.0 RW170 HK-ST352WBJ 3.5 F RW240 Mitsubishi Electric (J5) HK-ST502WBJ 5.0 RW320 HK-ST702WBJ 7.0 X Same for all sizes Motor not listed above ※The motor listed above comes with a brake.

⑧Connector position on servomotor R S VWZ S S V V Standard： Customer to mount servomotor W R W R Special order： Special order： Special order： Special order： R V On side R R V On side S On side V On side W

2 RollerDrive Specifications

Sizes RW170 RW240 RW320

Allowable loading capacity kg 2000 5000 9000

Allowable moment load output shaft N・m 5500 8800 10700

Output shaft runout (axial/radial) μm or less 10 10 10

Angular repeatability accuracy mm ±0.05（R=1000mm） ±0.05（R=1000mm） ±0.05（R=1000mm）

Rotating Angle deg 0～360 0～360 0～360

Gear ratio 72 216 120 360 120 360

Maximum Speed min－1 35（210°/sec）13.8（83.3°/sec） 25（150°/sec）8.3（50°/sec） 25（150°/sec）8.3（50°/sec）

Internal moment of inertia on motor shaft kg･㎡ 0.00388 0.00173 0.00614 0.00198 0.0118 0.00261 658 Weight (Motor not included) kg 650 120 128.1 400 408.1 （667）※ ※Weight for RW320 (high gear ratio) Yaskawa Motor.

RW170 ※Table size：1000mm×700mm 180° Indexing time Weight of load Moment of inertia

1.5sec 700kg 86.9kg･㎡

2.0sec 1000kg 124.2kg･㎡

3.0sec 2000kg 248.3kg･㎡

RW240 ※Table size：1500mm×1000mm 180° Indexing time Weight of load Moment of inertia

1.5sec 1200kg 325kg･㎡

2.0sec 2000kg 541.7kg･㎡

3.0sec 5000kg 1354.2kg･㎡

RW320 ※Table size：2000mm×1400mm 180° Indexing time Weight of load Moment of inertia

2.0sec 2000kg 993.3kg･㎡

3.0sec 4000kg 1986.7kg･㎡

4.5sec 9000kg 4470kg･㎡

● Oil lubrication These units use high-performance lubrication oil. The lubrication oil will remain chemically and thermally stable, but should be replaced every 3,000 hours of operation to prolong the life of the unit. Use the oil level gauge to check the condition of the lubrication. Check lubrication when the unit has stopped. If the oil appears low or discolored, change it with fresh oil regardless of the hours of operation. Occasionally, air bubbles may form in the oil during operation but this is natural and not a quality concern. ※：Use the following lubricant for refill. Standard lubricant： Mobil SHC629 (VG150) Use of different oil can cause wearing or other problems.

Oil Volume by Mounting Positions 1 5 9

Mounting position Special order

W surfaceon bottom R surface on bottom

RW170 3ℓ 3ℓ

RW240 6ℓ 7ℓ Ask Sankyo.

RW320 15ℓ 14ℓ

3 Dimension drawings

RW170 Standard Gear Ratio Model [Gear ratio=72] Unit：mm

(4)φ18 THRU Rc1/2 (4)M12×1.75, 20DP C-BORE φ32, 40DP Air relief plug, (For lifting) (For mounting holes) 160 160 for adding oil 125 Oil filling port Rc1/2 100±0.02 100±0.02 (4)M12×1.75, 20DP 100 when using ⑤ as mounting surface 90 90 (For lifting) Oil filling port Rc1/2 S C70 +0.015 when using ① as mounting surface (4)φ8 0 , 15DP C20 A C70 (8)M12×1.75, 18DP Equally spaced on 215 BC ※1 3×(2)Rc1/2

165 Motor base access holes (For mounting/removing motor) 100 ±0.02

0.046 45° 0 － 40 54 ±0.02 ±0.15 445 φ239.9 40 Hollow bore φ180 Hollow bore 91.5

340 55 304.5 245 250 265

Oil level gauge when using +0.034 +0.009 ① as mounting surface 100±0.02 100±0.02 T 160±0.15 (4)M12×1.75, 24DP φ35 115 ±0.05 U 320 V 114 Equally spaced on 200 BC 42

G.L.⑤ +0.018 1 (2)φ12 , 20DP 14 0 100 100 200 （Reverse side） 125 125 100 210 Oil level gauge when using 180 50 2 196 2 360 120 Drain ⑤ as mounting surface 480 SFMS-M12(NBK) (Both sides) 0.2 A R (2)φ12 +0.018 , 20DP (47) 0 +0.018 (2)φ12 0 , 20DP (For machining at Sankyo) 37 (48) ±0.03 146 146 36 27

G.L.① Drain ±0.15

27 W (4)M16×2, 30DP Rc1/4 35 30 300

※1 Motor base access holes are not provided on side R. ※2 *2: The customer must supply their own servo motor.

RW170 High Gear Ratio Model〔Gear ratio=216] Unit：mm

(4)φ18 THRU C-BORE φ32, 40DP (2)M12×1.75, 20DP (For mounting holes) 160 160 (4)M12×1.75, 20DP (For lifting) 125 Oil filling port Rc1/2 100±0.02 100±0.02 (For lifting) 100 when using ⑤ as mounting surface 90 90 Rc1/2 Oil filling port Rc1/2 S +0.015 Air relief plug, C70 (4)φ8 , 15DP when using ① as mounting surface 0 for adding oil C20 C70 A (8)M12×1.75, 18DP Equally spaced on 215 BC ((4)M12×1.75, 25DP) ※1 3×(2)Rc1/2 Motor base access holes (Equally spaced on 200 BC) 165 (For mounting/ removing input gear reducer) 100 ±0.02 0.046 0 － 40 ±0.15

54 T ±0.02 +0.047 +0.012 445 φ239.9 91.5 40 Hollow bore φ180 Hollow bore

（ （□180） 45°） 340 55 （φ114.3 ） （φ114.3 304.5 245 250 265

Oil level gauge 009

+0.034 when using ① as +0.009+0. ） 100±0.02 100±0.02 ※3 Rc1/2 mounting surface 160±0.15 Input reducer 115 （φ3 5 U 320±0.05 V 114 access hole (For mounting/ 42 removing motor)

G.L.⑤ 1 +0.018 14 (2)φ12 0 , 20DP 100 100 200 （Reverse side） 125 125 100 210 Oil level gauge when using 180 50 2 196 2 360 120 19 （163.5） ⑤ as mounting surface Drain （662.5） SFMS-M12(NBK) (Both sides) 0.2 A R +0.018 （47） (2)φ12 0 , 20DP +0.018 (2)φ12 0 , 20DP (For machining at Sankyo)

37 VRS-100C-3-S3-38KA35 （48） (NIDEC-SHIMPO CORPORATION) ±0.03 146 146 36 27

G.L.① Drain ±0 .15 W (4)M16×2, 30DP Rc1/4 35 27 30 300

※1 Motor base access holes are not provided on side R. ※2 *2: The customer must supply their own servo motor. 4 ※3 Use the product code to specify the position of the access hole for the input reducer. (Refer to P.2) Dimension drawings

RW240 Standard Gear Ratio Model [Gear ratio=120] Unit：mm

(4)φ18 THRU 633 520 113 (For mounting holes) +0.018 265 260 φ12 0 THRU 255 4 (4)M16×2 THRU 90 150 150 90 φ18 THRU, 30DP 50 (For lifting) 435±0.05 104 25 190 190 ※1 3×(2)Rc1/2 (2)M16×2, 32DP Oil filling port Rc3/4 100 100 Motor base access holes (For lifting) (For mounting/removing motor) when using ⑤ S as mounting surface U 90

260 T 220 R3 45

150 °

Rc1/4 0.057 0 －

Air relief plug, 2

for adding oil 620 φ350 Hollow bore φ250 Hollow bore

700 +0.034 ±0.05 5 +0.009 φ3 (4)M12×1.75, 24DP 600 Equally spaced on 200 BC ±0.15

Oil filling port Rc3/4 400 +0.018 when using ① 440 (2)φ12 , 25DP 420 0 as mounting surface

320 Oil level gauge when using V

249 ⑤ as mounting surface

(12)M16×2, 32DP Equally spaced on 300 BC 80

G.L.⑤ 131 (2)φ18 THRU 150±0.03 150±0.03 213 190 190 (For mounting holes) 215±0.15 +0.018 φ12 0 THRU 240 240 φ18 THRU, 30DP R (55.5) Oil level gauge when using ① as mounting surface 106 50 G.L.① Drain W Rc1

※1 Motor base access holes are not provided on side R. ※2 The customer must supply their own servo motor.

RW240 High Gear Ratio Model〔Gear ratio=360] Unit：mm

※1 3×(2)Rc1/2 （815.5） (4)φ18 THRU Motor base access holes 520 113 19 （163.5） (For mounting/removing input gear reducer) 265 (For mounting holes) 260 255 4 90 150 150 90 +0.018 104 (4)M16×2 THRU φ12 TH RU 50 435±0. 05 0 25 (For lifting) 190 190 φ18 THRU, 3 0DP (2)M16×2, 32DP Oil filling port Rc3/4 100 100 (For lifting) when using ⑤ S as mounting surface U 90 ±0. 05 260 （ 600 T 220 R3 45°） 150 0.057 +0.0 47 +0.012 0 Rc1/4 －

Air relief plug, 2 （□180）

for adding oil φ350 620

（φ114.3 ） （φ114.3 ） +0.034

Hollow bore φ250 Hollow bore +0.009 700 （φ 3 5 ((4)M12×1.75, 25DP) ※3 Rc1/2 (Equally spaced on 200 BC) Input reducer

Oil filling port Rc3/4 400 +0.018

440 access hole when using ① (2)φ12 0 , 25DP as mounting surface ±0. 15 (For mounting/ removing motor) 320

Oil level gauge when using 420 V

249 ⑤ as mounting surface

(12)M16×2, 32DP

Equally spaced on 300 BC 80

G.L.⑤ 131 (2)φ18 THRU 150±0. 03 150±0. 03 213 (For mounting holes) 190 190 215±0. 15 +0.018 φ12 0 THRU 240 240 φ18 THRU, 30DP R （55.5） Oil level gauge when using ① as mounting surface

VRS-100C-3-S3-38KA35 （NIDEC-SHIMPO CORPORATION） 106 50 G.L.① Drain W Rc1

※1 Motor base access holes are not provided on side R. ※2 The customer must supply their own servo motor. ※3 Use the product code to specify the position 5 of the access hole for the input reducer. (Refer to P.2) Dimension drawings

RW320 Standard Gear Ratio Model [Gear ratio=120] Unit：mm

794 684 110 φ12 +0.018 THRU 295 (4)φ26 THRU 590 ±0.06 0 φ18 THRU, 30DP 277 6 (For mounting holes) 335 50 110 200 200 110 (4)M16×2 THRU 17.5 265 265 ※1 3×(2)Rc1/2 125 (2)M16×2, 32DP (For lifting) 140 140 Motor base access holes (For lifting) S (For mounting/removing motor) 110

U

R3 335 Rc3/4 270

Air relief plug, 200 for adding oil 45° 0.063 0 Oil filling port Rc3/4 － when using ⑤

as mounting surface 790 40 φ479.9 870 Hollow bore φ360 Hollow bore ±0.06 T 760 (4)M12×1.75, 24DP

±0.15 Equally spaced on 200 BC 495 Oil filling port Rc3/4 535 4 520 when using ① +0.018 (2)φ16 , 32DP .009 415 as mounting surface 0 +0.030 + Oil level gauge when using φ3 5 280 ⑤ as mounting surface V 80

G.L.⑤ (16)M16×2, 32DP 220±0.03 220±0.03 Equally spaced on 440 BC (2)φ26 THRU 225 239 150 (For mounting holes) 255 255 +0.018 ±0.15 252 φ12 0 THRU 290 φ18 THRU, 30DP 310 310 Oil level gauge when using (54.5) R ① as mounting surface 125 33 G.L.① Drain W Rc3/4

※1 Motor base access holes are not provided on side R. ※2 The customer must supply their own servo motor.

RW320 High Gear Ratio Model〔Gear ratio=360] Unit：mm

（976.5） 684 110 19 （163.5） 295 (4)φ26 THRU 590±0.06 277 6 (For mounting holes) 335 +0.018 50 110 200 200 110 φ12 0 T HRU ※1 3×(2)Rc1/2 125 17.5 (4)M16×2 THRU 265 265 φ18 THRU, 30DP Motor base access holes (2)M16×2, 32DP (For lifting) 140 140 (For mounting/ (For lifting) S removing input gear reducer) 110

U 335 Rc3/4 R3 ±0.06 270

Air relief plug, 760 （ 200 for adding oil 45°） 0.063 0 －

Oil filling port Rc3/4 +0. 04 7 +0. 01 2 when using ⑤ 790

as mounting surface 40 φ479.9 （φ114.3 ） （φ114.3 （□180） 870 Hollow boreφ360 ※3 Rc1/2 ((4)M12×1.75, 25DP) Input reducer access hole (Equally spaced on 200 BC) ±0.15 495 Oil filling port Rc3/4 535 (For mounting/removing motor) ※4 4 ） when using ① 520 VRS-100C-3-S3-38KA35 9

415 as mounting surface +0.030.00 + （NIDEC-SHIMPO CORPORATION） 5 Oil level gauge when using 3

280 （φ ⑤ as mounting surface T V +0.018 (2)φ16 0 , 32DP 80

(16)M16×2, 32DP G.L.⑤ 220±0.03 220±0.03 (2)φ26 THRU Equally spaced on 440 BC 225 239 (For mounting holes) 150 255 255 +0.018 252 φ12 0 THRU 290±0.15 φ18 THRU, 30DP 310 310 ※4 VRS-140C-3-S3-48KA42（Special for Yaskawa Electric motors） Oil level gauge when using （NIDEC-SHIMPO CORPORATION） R 110 40 （218） （54.5） ① as mounting surface ((4)M12×1.75, 25DP) (Equally spaced on 200 BC) +0. 04 7 +0. 01 2

4 03 ） ） +0. 9

（φ114.3 ） （φ114.3 00

（□180） . 2 + 0 125 φ4 （ （45° 33 G.L.① Drain W ※3 Rc3/4 Rc3/4 Input reducer access hole (For mounting/removing motor)

※1 Motor base access holes are not provided on side R. ※2 The customer must supply their own servo motor. ※3 Use the product code to specify the position of the access hole for the input reducer. (Refer to P.2) 6 ※4 The model number and dimensions of the input reducer depends on the manufacturer of the motor. (Refer to P.2) Attention: Date

Our contact person:

Model Sizing Form for the RollerDrive ® RW series Customer’s Company, Department TEL

Address FAX

Name Email

A ）Application

B ）Overview drawing, loads, operating environment, etc. Table diameter C ）Motion pattern （Draw a sketch of the table, workpieces, fixtures, etc., Index period (angle of rotation per cycle) to mount on the output shaft of the RW, and indicate [mm] [deg] any loads that will occur during rotation.） Table mass Indexing time (time to move the indexing angle)

[kg] [sec] P.C.D of fixtures Dwell time

[mm] [sec] Mass per fixture Cycle Time（Indexing time＋Dwell time）

[kg] [sec] Number of fixtures Allowable e-stop time or angle

[pcs.] [sec] [deg] P.C.D of workpieces D）Specified servomotor □Yaskawa Electric（Σ-Ⅴ） [mm] Mass per workpiece □Yaskawa Electric (Σ-7) □Mitsubishi Electric (J4) [kg] □FANUC Number of workpieces □Mitsubishi Electric (J5)

[pcs.] □Other models（ ） Total payload Choose one [kg] Total moment of inertia [kg・㎡ ] RW-2021/05E-S Group Companies Global network Sankyo America Inc. 10655 State Route 47 Sidney, Ohio, 45365 U.S.A. Sankyo China Trading Co., Ltd. Phone： +1-(0)937-498-4901 Fax： +1-(0)937-498-9403 Email： [email protected] Hangzhou Sankyo Machinery Co., Ltd. Sankyo Korea Co., Ltd. Sankyo America Inc. 1449-48 Seobu-ro, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16643 Korea Italy Phone： +82-(0)31-895-5991 Fax： +82-(0)31-895-6607 Email： [email protected] Sankyo China Trading Co., Ltd. [Shanghai Sales Office] Room 1103, Block B, No.391 Guiping Road, Shanghai 200233 China Phone： +86-(0)21-5445-2813 Fax： +86-(0)21-5445-2340 Sankyo Seisakusho Co. Email： [email protected] Sankyo Shizuoka Seisakusho Co. [Shenzhen Sales Office] Sankyo Korea Co., Ltd. Unit 19j, Tower B, Neo Building, No.6009 Shennan Avenue, Taiwan Futian District, Shenzhen China Rodax Vietnam Co., Ltd. Phone： +86-(0)755-8230-0270 Fax： +86-(0)755-8236-4605 [Tianjin Sales Office] Headquarters Room 1905, Pengzhanfeiwo Building A, Crossing Yale Road Yaolin Road, India Global Sales Offices Xiqing District, Tianjin 300380 China Phone +86-(0)22-2312-1005 Fax +86-(0)22-2312-1007 Production Facilities ： ： International Distributors [Guangzhou Sales Office] Room 913, Xing Pu Buliding, No.12 Guan Hong Road, Guangzhou Economic Development Zone, Huang Pu, Guang Zhou 510670 China Sankyo Works（Thailand）Co., Ltd. Phone： +86-(0)20-8985-1846 Fax： +86-(0)20-8225-7346 Singapore [Wuhan Sales Office] Thailand Room 2301, Taihe Square, No.134 Wusheng Road, Wuhan, Hubei Province China Phone： +86-(0)27-8568-5818 Fax： +86-(0)27-8568-2818 Sankyo Works (Thailand) Co., Ltd. 9/31 Moo 5, Phaholyotin Road, Klongnueng, Klong Luang, Patumthani 12120 Thailand Phone： +66-(0)2-516-5355 Fax： +66-(0)2-068-0931 Contact us Email： [email protected] Mon-Fri AM8:30-12:00 PM13:00-17:30 UTC + 09:00 (JST)（ Except public holidays and company holidays）

■Headquarters (International Sales Division) ■Taiwan Sales Office 3-37-3 Tabatashinmachi, Kita-ku, Tokyo, Japan 114-8538 No.21, Ln.152, Jianxing Rd., Sanhe Vil., Daya Dist., Phone: +81-(0)3-3800-3330 Fax: +81-(0)3-3800-3380 Taichung City 42876, Taiwan (R.O.C.) Email: [email protected] Phone: +886-(0)4-2359-4048 Fax: +886-(0)4-2359-4720 URL: http://www.sankyo-seisakusho.co.jp Email: [email protected]

http://www.sankyo-seisakusho.co.jp RW‐2021／05E（DT）