Sankyo America (The Global Standard in CAM Indexing)

Sankyo America (The Global Standard in CAM Indexing)

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Sankyo RU Series Programmable Motion Rotary Table

Sankyo is the worldwide leader in rotary table positioning technology and continues to develop innovative motion control. Our core positioning system is based on our RollerDrive™ mechanism, a simple combination of a globoidal cam and cam followers mounted in a precision machined turret. A servo motor rotates a continuous lead cam profile and the rolling contact surfaces of the cam followers produce perfectly smooth and controlled motions without backlash.

Overview - High Torque - Dial Indexing - Indexing - Sankyo America < click to enlarge >
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Advantages

Overview - High Torque - Dial Indexing - Indexing - Sankyo America < click to enlarge >

• Programmable output motions in forward, reverse or oscillating directions with ZERO backlash
• Standard ±20 to ±45 arc seconds angular positioning accuracy (housing size dependent, see chart below)
• High accuracy option is ±10 to ±23 arc seconds angular positioning accuracy (housing size dependent, see chart below)
• Maintenance-free, grease filled units can mount in any position (high speed applications may require oil bath)
• IP66 wash down option for flood coolant applications (housing, output & shafts are bare metal, epoxy paint optional)
• Unique output bearing design is compatible with machine tool applications with extreme bending moment capacity
• Large output through bore with diameter tolerance in 11 housing sizes
• 1 year warranty
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Output Flange Design

• Unique bearing design has extreme bending moment capacity compatible with machining applications
• Standard output through bore has precision tolerance diameter
• Standard mounting flange surface runout is 0.01mm (0.0004 inches)
• Optional mounting flange surface runout is 0.002mm (0.00008 inches)

Overview - High Torque - Dial Indexing - Indexing - Sankyo America< click to enlarge >
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Motor Drive Option

• Standard motor bracket adapts to any servo motor brand (customer supplier servo motor)
• Optional low backlash inline planetary reducer adapts to any servo motor brand (customer supplier servo motor)
• Optional low backlash right angle reducer adapts to any servo motor brand (customer supplier servo motor)
• Right angle reducer can be rotated in 90 degree increments
• Sankyo will provide sizing calculations for the servo motor brand of YOUR choice (no need to stock another servo brand)

Overview - High Torque - Dial Indexing - Indexing - Sankyo America Overview - High Torque - Dial Indexing - Indexing - Sankyo America Overview - High Torque - Dial Indexing - Indexing - Sankyo America< click to enlarge >

 

Downloads

Item
Units
 
Full Catalog
PDF
Application & Sizing
PDF
CAD Drawing
PDF
Servo Motor Installation Procedures
PDF
RU Series User Manual
PDF

 

RU40~RU160 Specifications

Item
Units
RU40
RU63
RU80
RU100
RU125
RU160
Dimensional Catalog Pages
PDF
RU Internal Cam Ratio
-
15:1
20:1
24:1
Inline Reducer Ratio
(adds ±4.5~6 arc sec.)
-
3,5,9,15,20, 25 or 35:1
3,4,5,6,7,8,9,10 (1 stage) 15,16,20,25,28,30,25,40,45,50,60,70,80,90, 100:1 (2 stage)
Right Angle Reducer Ratio
(adds ±12 arc sec.)
-
N/A
1,1.5,2,3,4,5 (1 stage) 7,10,15,20,25,35,50 (2 stage)
TBD
Positioning Accuracy
arc sec.
±45
±30 (±15)
±20 (±10)
Repeat Accuracy Option
arc sec.
±10
±7 (±3)
±5 (±2)
±5 (±3)
Max. Start/Stop Acceleration Torque
N*m
82
191
260
796
1,352
1,737
lb*in
725
1,690
2,301
7,045
11,966
15,373
Static Rated Output Torque
N*m
100
250
360
1,000
1,800
2,409
lb*in
885
2,212
3,186
8,850
15,931
21,321
Max. Output RPM (grease)
RPM
200
150
150 (125)
150 (100)
150 (80)
100 (60)
Nominal Output RPM (grease)
RPM
86 (60)
55 (40)
50 (35)
45 (30)
30 (25)
Dynamic Output Axial Load Capacity
N
3,000
12,500
16,500
21,000
50,000
55,000
lb
674
2,810
3,709
4,720
11,240
12,364
Dynamic Output Radial Load Capacity
N
2,000
11,000
14,000
18,000
35,000
43,000
lb
449
2,472
3,147
4,046
7,868
9,666
Dynamic Output Bending Moment
N*m
100
700
1,000
1,700
5,000
9,700
lb*in
885
6,195
8,850
15,046
44,253
85,852

 

RU200~RU500 Specifications

Item
Unit
RU200
RU250
RU315
RU400
RU500
Dimensional Catalog Pages
-
RU Internal Cam Ratio
-
24:1
30:1
32:1
40:1
Inline Reducer Ratio
(adds ±4.5 arc sec.)
-
3,4,5,6,7,8,9,10 (1 stage) 15,16,20,25,28,30,25,40,45,50,60,70,80,90, 100:1 (2 stage)
Right Angle Reducer Ratio
-
N/A
Positioning Accuracy
arc sec.
±20 (±10)
Repeat Accuracy Option
arc sec.
±5 (±3)
Max. Start/Stop Acceleration Torque
N*m
2,170
6,250
8,710
15,530
26,090
lb*in
19,206
55,317
77,090
137,452
230,916
Static Rated Output Torque
N*m
3,090
8,140
11,720
21,290
34,950
lb*in
27,348
72,045
103,730
188,432
309,333
Max. Output RPM (grease)
RPM
65 (40)
40
30
25
20
Nominal Output RPM (grease)
RPM
25 (20)
20
15
13
12
Dynamic Output Axial Load Capacity
N
63,000
130,000
140,000
160,000
180,000
lb
14,162
29,225
31,473
35,969
40,465
Dynamic Output Radial Load Capacity
N
48,000
95,000
110,000
135,000
150,000
lb
10,790
21,356
24,728
30,349
33,721
Dynamic Output Bending Moment
N*m
16,000
38,000
65,000
110,000
200,000
lb*in
141,612
336,328
575,298
973,582
1,770,150

 

Why Sankyo
We make our own internal components, the rotary indexer globoidal cam & needle bearing cam followers are optimized to the largest size for each configuration. Sankyo components are ~30% larger than the competition.

Our success is simple; larger diameters transfer more torque & rotate fewer revolutions. More surface contact & fewer revolutions have less wear to inherently extend the service life. Smaller units perform the same task with less cost.

 

 

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