RCD RT CNC ROTARY TABLE. RCD series. For Machining Center from Makino Milling Machine

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Bennett Houston
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1 RD RT N ROTRY TLE RD series or Machining enter from Makino Milling Machine

The Ultimate N Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive N is a rotary table designed to meet the

The RollerDrive Sankyo's zero-backlash reducer delivers accurate output motion that stands up to external disturbances, unlike gearmotors or

The heavy-duty RollerDrive N has no internal part wear and no loss of accuracy over long-term use, thus eliminating the need for regular

Theory of Operation of the RollerDrive The RollerDrive uses the roller gear mechanism, one of the finest motion control mechanisms available.

The roller followers are preloaded against a screw-like input shaft to completely eliminate backlash.

The roller followers planted in the turret use internal roller bearings to transfer torque while rotating.

2 The Ultimate N Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive N is a rotary table designed to meet the requirements of machine tool manufacturers for greater speed and accuracy. The RollerDrive Sankyo's zero-backlash reducer delivers accurate output motion that stands up to external disturbances, unlike gearmotors or torque motors. It offers excellent rotary positioning accuracy of 1 seconds or less, and can hold up to heavy cutting forces on hard steel. The heavy-duty RollerDrive N has no internal part wear and no loss of accuracy over long-term use, thus eliminating the need for regular calibration or adjustments. Theory of Operation of the RollerDrive The RollerDrive uses the roller gear mechanism, one of the finest motion control mechanisms available. The unit is constructed from an input shaft (the roller gear cam) and a turret (output shaft) fitted with roller followers. The roller followers are preloaded against a screw-like input shaft to completely eliminate backlash. Our proprietary adjustment mechanism provides optimum preload. The roller followers planted in the turret use internal roller bearings to transfer torque while rotating. This ensures zero backlash, outstanding precision, and excellent efficiency without causing wear, while providing long-term consistent accuracy. Exclusive zero-backlash construction Preload mechanism Turret (output) Roller gear cam (input) am followr eatures Rolling contact Preload No backlash (play). High accuracy and good efficiency. Preloadable for high rigidity. lampless machining reduces positioning time. No deterioration of accuracy over time, initial accuracy is maintained for an extended period. 1

N RDseries No Maintenance and Excellent Price Performance onsistent long-term accuracy without maintenance. Worm gear models ccuracy declines over time.

3 N RDseries No Maintenance and Excellent Price Performance onsistent long-term accuracy without maintenance. Worm gear models ccuracy declines over time. Requires maintenance to achieve initial accuracy. RollerDrive ccuracy is consistent with no maintenance even after million operation cycles. (arc sec) Positioning ccuracy ging Requires maintenance at regular intervals Test High Positioning Error Low The RollerDrive graph is based on internal testing. (enter distance of test unit: 17) Drop in accuracy over time RollerDrive Worm gear rotary table (example) 1 Million 2 Million 3 Million 4 Million Million onsistent long-term accuracy Operating cycles without maintenance. Maintenance Maintenance ost omparison with a Worm Gear Rotary Table Offers Long-term Use without Maintenance Worm gear models Maintenance costs occur once or twice a year to adjust the backlash. RollerDrive Long-term use is possible without any mechanical maintenance. eats the cost of a worm gear even after adding annual running costs to the initial investment cost. Price performance continues thereafter. (ased on internal calculations.) 2 1 Initial ost versus nnual Maintenance osts Worm gear rotary table Roller gear rotary table ost becomes less than the worm gear table in three years year 1Worm gear rotary tables require maintenance twice a year. 2ssumes an annual running cost of 3% (oil changes, etc.) for both types. ost simulations are based on a table diameter of about 2 mm. Shorter positioning time Time comparison for 9 positioning onventional worm gear lamping using hydraulic pressure or air pressure is required to suppress backlash. RollerDrive Zero backlash and high rigidity eliminate the need for clamping. ompared to the worm gear type, positioning time is reduced to about one third. onventional worm gear (with clamp) RollerDrive Rotate Unclamp lamp Processing workpiece Rotate workpiece Positioning time reduced to about one third Processing (ased on in-house calculations) Extended ccuracy ompared against a worm gear for over million indexes. Test conditions Table size: Output table diameter: 17 mm Load inertia:. kgm 2 Index angle: 36 (unidirectional) Indexing time:.3sec Results after million indexes: Item Worm gear RollerDrive Variation in positioning accuracy 24.2sec.9sec acklash (measured at R6) 18 μm (1 μm 33 μm) - (ased on internal testing data.) Variation in positioning accuracy [sec] Variation in positioning accuracy Variation after million indexes: 1 Million 2 Million 3 Million 4 Million Million 24.2sec Worm gear RollerDrive.9sec 2

Sizing and Product ode N Rotary Table Selection hart N Rotary Table V33i V6i RD17 1-axis RD2 RD2 RD3 2-axis RT1 Product ode [1-axis Series] Rotary table 1 RD17-2 1 3 R 4 6 1 1 2 3 4 6 Servo motor

Options High-accuracy model *1, *2 *1, *2 ir / Hydraulic clamping Rotary joint Standard / ustom E With MP scale With clamp J Internal type lank Standard lank None lank None H External type X ustom

4 Sizing and Product ode N Rotary Table Selection hart N Rotary Table V33i V6i RD17 1-axis RD2 RD2 RD3 2-axis RT1 Product ode [1-axis Series] Rotary table 1 RD R Servo motor Model Without brake Motor mounting side onnector position onnector type Table shape RD17 1 NU R Right Rear R Receptacle 1 Tapped holes RD2 L Left S Side 2 T slot RD2 RD3-7 E 8 9 J - 1 X Options High-accuracy model *1, *2 *1, *2 ir / Hydraulic clamping Rotary joint Standard / ustom E With MP scale With clamp J Internal type lank Standard lank None lank None H External type X ustom lank None *1 There is no hollow bore in the table when the MP scale (high-accuracy model) or rotary joint is installed. *2 Simultaneous installation of MP scale (high-accuracy model) and rotary joint is not supported. Motor mounting side onnector position onnector type / shape Table shape R R 1 L S RD17 (8)M8 1.2, 14DP 14 RD2 (8)M8 1.2, 14DP 17 RD2 (8)M1 1., 18DP 21 RD3 (8)M1 1., 18DP 2 2 P6: Table with RD dimensions Support table 1 ST J - 4 X Options Model ir / Hydraulic clamping Rotary joint Standard / ustom ST17 or RD17 and RD2 With clamp J Internal type lank Standard ST2 or RD2 and RD3 lank None H External type X ustom lank None Tail stock 1 TSS13-2 M 3 R - 4 X Model Type Handle side Standard / ustom TSS13 or RD17 and RD2 M Manual R Right lank Standard TSS18 or RD2 and RD3 L Left X ustom 3

5 N RDseries Product ode [2-axis Series] Rotary table 1 - RT Model Servo motor Motor mounting side onnector position RT1 NU R Right S Side E 6 High-accuracy model *1 6 Options J Rotary joint (Internal type) *2 E With MP scale J Internal type lank None lank None *1 There is no hollow bore in the table when the MP scale (high-accuracy model) or rotary joint is installed. *2 Use the rotary joint for the air supply. It is not suitable for supplying hydraulic oil. 3 R L Left Rear 4 S Sizing and Product ode Specifications / Dimensions R Motor mounting side S onnector position Mount clamps (ccessories) / Main unit options L uxiliary equipment Layout dimensions on machine Precision Ratings Precautions 4

6 Specifications [1-axis Series] Specifications RD17 RD2 RD2 RD3 Table diameter mm Φ17 Φ2 Φ2 Φ3 Table pilot bore diameter mm Φ6 +.3 Φ6 +.3 Φ Φ enter height mm Table T slot width mm Keyway width mm lamp type (air. MPa, hydraulic 3. MPa) ir / Hydraulic ir / Hydraulic Hydraulic Hydraulic lamp torque *1 N m Motor shaft equivalent inertia *2,*3 1-4 kg m Motor model (NU) αis4/- ( ) αis8/4- ( ) αis8/4- ( ) αis8/4- ( ) Minimum setting unit deg Maximum table speed min Gear ratio 1/ 1/ 1/6 1/6 Indexing accuracy arc.sec ±1 ±1 ±1 ±1 Repeatability arc.sec Net weight kg Upright position *4 kg 7 (14) 7 (14) 2 (1) 2 (1) llowable payload W Horizontal position W kg N llowable load L with clamping L N m ontinuous holding torque *2,* N m Maximum output torque *2,*,*6 N m L L N m llowable workpiece inertia kg m Extenal rotary joint (number of ports) * Internal rotary joint (number of ports) * MP scale (high-accuracy model) *7 MPRZ-36 (MHI) MPI-36 (MHI) *1 Values for RD17 and RD2 are clamping torques when using an air hydro booster with a air pressure of. MPa as the supply source. *2 Values for motor shaft equivalent inertia, and continuous / maximum holding torque are given for anuc motors. Please contact Sankyo if a different motor is to be used. *3 Motor shaft equivalent inertia does not include the inertia of the motor shaft. *4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used. * The continuous / maximum holding torque is the allowable load torque when a clamp is not used. *6 Maximum holding torque should not exceed 1 seconds with 2% duty. *7 Simultaneous use of the MP scale (high-accuracy model) and the rotary joint is not supported.

7 N RDseries Dimensions [1-axis Series] The drawings apply to the following specifications: R side motor mounting, rear connector. RD17 RD φ φ3 φ Table T slot groove width Sizing and Product ode Specifications / Dimensions RD φ φ3 φ Table T slot groove width Mount clamps (ccessories) / Main unit options uxiliary equipment φ φ14 φ φ Layout dimensions on machine RD φ φ14 φ φ Table T slot groove width Precision Ratings Precautions Table T slot groove width 6

8 Specifications [2-axis Series] Specifications Rotary axis RT1 Tilt axis Tilting angle deg -2 ~ +12 Table diameter mm Φ1 Table pilot bore diameter mm Φ4 +.2 enter height (9 degrees) mm 132 Table surface height ( degree) mm 197 Keyway width mm 18 Motor shaft equivalent inertia *1 1-4 kg m Motor model (NU) αis2/- ( ) αis4/- (6-221-) Minimum setting unit deg.1.1 Maximum table speed min -1 1 Gear ratio 1/48 1/9 Indexing accuracy arc.sec ±1 ±1 Repeatability arc.sec 8 4 Net weight kg 91 degree W kg 3 llowable payload 9 degrees W kg 3 N 616 llowable load L ontinuous holding torque L L L Maximum output torque *2 N m N m L L L L N m 29 llowable workpiece inertia kg m 2.1 Internal rotary joint (number of ports) *3 2 - MP scale (high-accuracy model) *1 Motor shaft equivalent inertia does not include the inertia of the motor shaft. *2 Maximum holding torque should not exceed 1 seconds with 2% duty. *3 Use the rotary joint for the air supply. It is not suitable for supplying hydraulic oil. MPRZ-36 (MHI) MPI-36 (MHI) MPRZ-736 (MHI) MPI-736 (MHI) 7

9 N RDseries Dimensions [2-axis Series] The drawings apply to the following specifications: R side motor mounting, side connector. RT1 2 Max workpiece dia.17 mm φ4 +.2 φ φ41 φ φ R (8)M6 1, 12DP Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options Workpiece interference region for tilting Tilting angle uxiliary equipment -2 ~ 4-2 ~ 9-2 ~ 12 RT1 φ286 2 φ Layout dimensions on machine φ17 φ263 φ17 φ17 Precision Ratings Precautions 8

10 Mount clamps (ccessories) Model Size Mount clamps type / Qty. used 17 g, h (1 pc. each) RD 2 g, h (1 pc. each) 2 i (4 pcs.) 3 i (4 pcs.) RT 1 b (4 pcs.) g Φ14 THRU h Φ14 THRU 1 i Φ18 THRU b 1 Φ14 THRU

11 N RDseries Main unit options High-accuracy model y mounting a commercially available MP scale (MHI) to the rotary table, fully closed loop control can be realized. Direct detection of the table's rotation angle enables indexing with high accuracy. MP scale configuration MP scale Servo motor Rotary table Machining center Servo amplifier /D converter Notes 1. With the incremental specification, absolute detection is possible by combination with an absolute type servo motor. 2. The /D converter must be provided by the customer. 3. Refer to the documentation of the respective manufacturer for operation instructions and information on the connection between the /D converter and higher-level equipment. Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options uxiliary equipment Layout dimensions on machine Precision Ratings Precautions 1

12 Main unit options Rotary joint Specifications Product type Size Max. number of ports Internal type External type Maximum actuation pressure *1 luid: RD * * *1 ir.7 MPa / Hydraulic 6 MPa RT luid: ir.7 MPa *4 *1 The +1 indicates the port in the center bore. *2 Make sure to furnish a line filter in the air supply line. *3 Under prolonged use a small amount of actuation oil may leak from the oil port toward the adjacent air port. If possible, the adjacent ports should be left open for use as drain ports. *4 Use the rotary joint for the air supply. It is not suitable for supplying hydraulic oil. Internal type RD17,2 14 (6)Rc1/ D E φ2 (φ17) +. (6)φ ±. 47. RD2,3 (8)Rc1/ D E G H G H E D 4 2 RT1 (2)Rc1/8( part) 1.4 ± φ41 φ φ6 E 4 D 4 φ83 φ3 (φ2) 1.4 ±. φ φ φ +.2 φ

13 N RDseries External type RD17,2 (6)Rc1/4 Rc1/4 RD2, G 3 D 3 E φ2 (φ17 ) 1.4 ±. +. (6)φ φ φ6 G E D Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options uxiliary equipment Rc1/4 K φ46 φ8 +.3 φ 3 (φ2 ) φ12. 2 J I K H G D E Layout dimensions on machine J H D I G E (1)Rc1/4 Precision Ratings Precautions 12

14 uxiliary equipment Support table Specifications Specifications ST17 ST2 Rotary table model RD17 RD2 RD2 RD3 Table diameter mm Φ17 Φ2 Table pilot bore diameter mm Φ6 +.3 Φ enter height mm Table T slot width mm Keyway width mm lamp type (air. MPa, hydraulic 3. MPa) ir / Hydraulic Hydraulic lamp torque *1 N m Inertia of rotating output part 1-2 kg m Maximum table speed min Net weight kg 24 4 llowable payload *2 W kg 14 1 N llowable load *2 L with clamping L N m ontinuous holding torque *3 N m Maximum holding torque *3,*4 N m External rotary joint (number of ports) Internal rotary joint (number of ports) 4 6 *1 Values for ST17 is clamping torques when using an air hydro booster with a air pressure of. MPa as the supply source. *2 The allowable payload and allowable load values apply to the entire set including the rotary table. *3 The continuous / maximum holding torque is the allowable load torque when a clamp is not used. *4 Maximum holding torque should not exceed 1 seconds with 2% duty. 13

15 N RDseries uxiliary equipment Support table dimensions ST ST φ φ φ Table T slot groove width Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options φ φ φ φ uxiliary equipment Table T slot groove width Layout dimensions on machine Precision Ratings Precautions 14

16 Support table options Rotary joint Specifications Product type ST Size Max. number of ports Maximum actuation Internal type External type pressure *1 luid: ir.7 MPa / *1 Hydraulic 6 MPa *1 The "+1" indicates a port using the center bore. *2 e sure to use a line filter in the air supply. *3 During prolonged use, a small amount of actuation oil may leak from an oil port to an adjacent air port. If possible, the adjacent port should be left open as a drain port. Internal type External type ST ±. +. (4)φ8.2 ST ±. +. (6)φ8.2 φ1.2 G φ6 D φ6 E D (4)Rc1/ D 12. Rc1/4 G (6)Rc1/ D E ST (6)Rc1/ D E φ φ12.2 φ2 ±. E D ST2 2 2 Rc1/4 K I G E +. φ φ8 φ φ12.2 ±. I H G J K E D J H D (1)Rc1/4 1

17 N RDseries uxiliary equipment Tail stock dimensions TSS φ4 MT3 Right hand (R) φ8 13 Sizing and Product ode Specifications / Dimensions TSS φ8 Mount clamps (ccessories) / Main unit options 21 φ4 MT3 18 uxiliary equipment Right hand (R) Layout dimensions on machine Precision Ratings Precautions 16

18 Layout dimensions on machine V33i RD2R RD17R The drawings apply to the following specifications: R side motor mounting, rear connector (241 1) (φ17 1) φ ( 1) RD17R dimensions. V33i RT1R axis The drawings apply to the following specifications: R side motor mounting, side connector φ

19 N RDseries V33i RT1R axis The drawings apply to the following specifications: R side motor mounting, rear connector Sizing and Product ode Specifications / Dimensions φ1 Mount clamps (ccessories) / Main unit options V6i RD3R RD2R 9 The drawings apply to the following specifications: R side motor mounting, rear connector. uxiliary equipment 8 Layout dimensions on machine (147) (94) φ (φ2 1) Precision Ratings Precautions (13) (4) 1 ( 1) RD2R dimensions. 18

20 Layout dimensions on machine V6i RT1R axis The drawings apply to the following specifications: R side motor mounting, side connector. 9 (188) (192) φ (13) (4) 1 V6i RT1R axis The drawings apply to the following specifications: R side motor mounting, rear connector. 9 8 (242) (61) φ (13) (4) 1 19

21 N RDseries Precision Ratings 1-axis Series NO. Measurement Method RD17 RD2 RD2 RD3 1 Parallelism between table top and reference surface for upright mounting.1mm.1mm.2mm.2mm 2 Runout of table top.1mm.1mm.1mm.1mm Runout of table reference bore Perpendicularity between table top and reference surface for upright mounting Parallelism between rotary axis and guide blocks for reference surface for upright mounting Deviation between rotary axis and guide blocks for reference surface for upright mounting Parallelism between rotating center and reference surface for upright mounting.1mm.1mm.1mm.1mm.2mm (must not lean forward).2mm (must not lean forward).2mm (must not lean forward).2mm (must not lean forward).2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm.2mm.2mm.2mm.2mm.2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm 8 Indexing accuracy ±1arc.sec ±1arc.sec ±1arc.sec ±1arc.sec 9 Repeatability 8arc.sec 8arc.sec 4arc.sec 4arc.sec 2-axis Series NO. Measurement Method RT1 1 Straightness of table top 2 Parallelism between table top and bottom surface of base.1mm over full length.1mm 3 Runout of table top.1mm 4 Runout of table reference bore.1mm 6 Parallelism between tilt axis center line and bottom surface of base Parallelism between table top and guide block.2mm over full length.2mm Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options uxiliary equipment Layout dimensions on machine Precision Ratings Precautions 7 Indexing accuracy Rotary axis Tilt axis ±1arc.sec ±1arc.sec 8 Repeatability Rotary axis Tilt axis 8arc.sec 4arc.sec 2

22 Precautions ir supply Sankyo's N rotary tables come standard equipped with an air purge outlet. (Use it to blow out condensation Pressure setting:.2 MPa ir consumption: 1 L/min and coolant to prolong the life of electrical parts and prevent rust in the motor housing.) Supply clean air for IN the air purge by referring to the drawing shown. (Do NOT block the exhaust outlet.) OUT ir combination 2-1G- (SM) (Pressure Gauge G36-2-1) *Reference Model Lubrication Sankyo's N rotary tables use high-performance lubrication oil. lthough the lubricant is chemically and thermally stable, it should be changed every 3, hours of operation in order to ensure longer product life. Even if operated less than 3, hours, the oil should be changed once per year. The condition of the oil can be checked with the oil level gauge while the unit is in the stop condition. heck the oil level and color. If the level is low or the color has changed, change the oil regardless of the number of operation hours. Some air bubbles may form in the oil during operation. This is normal and does not affect quality. * e sure to use only the lubricant specified below. Otherwise service life may be reduced and parts may deteriorate. Specified lubricant: Mobil SH629 (VG1) Use in grinding machines When used in grinding machines, the seal device on the outer periphery of the table may become damaged. The warranty does not cover such damage. Maximum rotation speed The maximum rotation speed for the table given in the specifications refers to the indexing speed. onsult with Sankyo if the table is to be rotated continuously. Otherwise, the table will heat up and lose accuracy, causing overload alarms with the servo motor. General Precautions Under the Japanese trade regulation, RollerDrive N can be restricted to supply or export to a country which may produce weapons or related products. Dimensions and specifications are subjected to be modified without notice. ontents of this catalogue is published in ebruary 218. Whole or part of the contents, mechanisms, logos, drawings belongs to Sankyo-Seisakusho, Japan. No part of the catalogue is allowed to copy or redistributed to the third party without the permission of Sankyo Seisakusho. 21

23 N RDseries Global network Group ompany ITLY THILND SINGPORE RODX VIETNM O., LTD. SNKYO WORKS(THILND)O., LTD. SNKYO MIYGI SEISKUSHO O. SNKYO SEISKUSHO O. SNKYO SHIZUOK SEISKUSHO O. KORE TIWN HED OIE OIE TORY GENT SNKYO MERI IN. SNKYO MERI IN. 16 State Route 47 Sidney, Ohio, 436 U.S.. PHONE:+1-() X:+1-() SNKYO HIN TRDING O., LTD. [ SHNGHI HED OIE ] Room 113, lock, No.391 Guiping Road, Shanghai 2233 hina PHONE:+86-() X:+86-() sales@sankyochina-trading.com [ SHENZHEN RNH OIE ] Unit13, 13/., Tower, NEO-uilding, No.69 Shennan venue, utian District, Shenzhen hina PHONE:+86-() X:+86-() [ TINJIN RNH OIE ] Room 276, Jinhuang uilding, No.2 Nanjing Road, HeXi District Tianjin hina PHONE:+86-() X:+86-() [ GUNGZHOU RNH OIE ] Room 913, Xing Pu buliding, No.12 Guan Hong Road, Guangzhou Economic Development Zone, Guangzhou 167 hina PHONE:+86-() X:+86-() HNGZHOU SNKYO MHINERY O., LTD. No.218 Jiang Dong 2 Road, Hangzhou Jiang Dong Industrial Park, Xiaoshan Zone, Hangzhou, Zhejiang, hina PHONE:+86-() X:+86-() RODX VIETNM O., LTD. Plot No. M1, Thang Long Industrial Park II Di Su, My Hao, Hung Yen, Viet Nam PHONE:+84-() X:+84-() SNKYO WORKS (THILND) O., LTD. 9/31 Moo, Phaholyotin Road, Klongnueng, Klong Luang, Patumthani 1212 Thailand PHONE:+66-() X:+66-() Sizing and Product ode Specifications / Dimensions Mount clamps (ccessories) / Main unit options ontact us uxiliary equipment Mon-ri M8:3-12: PM13:-17:3 UT + 9: (JST)(Except public holidays and company holidays) Head Office Tabatashinmachi, Kita-ku, Tokyo, Japan (International department ) PHONE: +81-() X: +81-() E-MIL: overseas@sankyo-seisakusho.co.jp KORE 12-48, Digital Empire2, 88 Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Korea PHONE. +82-() X. +82-() Layout dimensions on machine TIWN No.2, Gongyequ 4th Rd., Xiehe Vil., Xitun Dist., Taichung ity 4768, Taiwan (R.O..) PHONE () X () E-MIL: tw-sales@rollerdrive.com Precision Ratings Precautions 22

24 Dealers * Photos of the Machining enter are used courtesy of Makino Milling Machine. Sankyo Seisakusho is responsible for the manufacture of the N Rotary Table and N Tilting Table. * ll patent rights and copyrights for parts of mechanisms described in this catalog and for trademarks, images, drawings etc. belong to Sankyo Seisakusho o. "RollerDrive" is a registered trademark of Sankyo Seisakusho o. in Japan. MKN-218/2E(Z)

RCD RT CNC ROTARY TABLE. RCD series. For Machining Center from Yamazaki Mazak

RCD RT CNC ROTARY TABLE. RCD series. For Machining Center from Yamazaki Mazak RD RT N ROTRY TLE RD series or Machining enter from Yamazaki Mazak The Ultimate N Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive N is a rotary table designed to meet