Sankyo America (The Global Standard in CAM Indexing)

Sankyo America (The Global Standard in CAM Indexing)

Home - Flexible Servo Index - High-Torque (AR ServoDEX Series) - Specifications
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SANKYO AR 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

• Servo driven programmable output motions in forward, reverse or oscillating directions with very low backlash
• Standard ±60 arc seconds angular positioning accuracy (ratio dependent)
• Ideal for heavy load application with slow speeds
• 6:1, 8:1, 10:1, 12:1 or 16:1 internal cam ratios are available
• For additional reduction, an inline second reducer is available with 3:1 to 100:1 ratios
• Dual taper roller bearings provide large bending moment capacities
• Stationary output through bore with diameter tolerance in 6 housing sizes
• 1 year warranty, IP55/IP67 motor rated (see SANKYO RU series for IP66 rated)
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Output Flange Design

• Standard stationary output through bore for routing air lines, plumbing, wiring, push rod or drive shaft
• Output bore includes precision tolerance diameter for bearing mounting for a drive shaft
• Optional riser with through bore can mount to the stationary flange
• Optional riser works with output torque limiting clutch (see TAD Series clutch below)
• Dual tapered bearing design has large bending moment capacity
• A second stationary dial plate can be mounted above the indexing dial plate to mount inspection tooling

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 >
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Motor Drive Option

• Inline reducer adapts to any servo motor brand (customer supplier servo motor)
• Standard 3 arc minute low backlash inline planetary reducer mounts on either side of the AR housing (1 arc minute option)
• 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< click to enlarge >
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TAD Series Output Torque Limiting Clutch Option

• Optional TAD Series output torque limiting clutch protects the AR indexer/positioner during tooling crashes
• TAD clutch features easy adjust torque range in just seconds, no disassembly (TAD Clutch Setup Manual 1,292 kb)
• Works with optional stationary flange riser (shown below)
• Optional overload detection proximity switch mounts on indexer stationary flange (shown below)
• Detent ball design responds quickly to disengage the load from the AR indexer/positioner
• Springs can be changed quickly for new torque range

Overview - High Torque - Dial Indexing - Indexing - Sankyo AmericaOverview - High Torque - Dial Indexing - Indexing - Sankyo America

 

Catalog & Drawing Downloads

DESCRIPTION
UNIT
7AR
9AR
11AR
15AR
19AR
23AR
Catalog - Dimensional Pages PDF 191 kb 191 kb 191 kb 191 kb 189 kb 189 kb
Catalog - Full PDF 1859 kb
Catalog - TAD Output Clutch Option PDF 203 kb
Quote Request - Sizing Form - 80 kb
Drawings - 2D/3D CAD Downloads - Link to Download Page (requires login or register)
Manual - AR Series User Manual - Link to Download Page (requires login or register)
Manual - TAD Series User Manual - Link to Download Page (requires login or register)
Manual - Servo Motor Installation - Link to Download Page (requires login or register)

 

Specifications

DESCRIPTION
UNIT
7AR
9AR
11AR
15AR
19AR
23AR
Max. Output Torque Capacity (8:1 ratio) N*m 222.8 423.5 651.6 1,959.6 4,076.0 6,272.0
lb*in 1,971 3,748 5,767 17,343 36,075 55,511
Static Rated Torque (8:1 ratio) N*m 338.5 656.3 1,007.9 2900.3 5908.4 9167.8
lb*in 2,995 5,808 8,920 25,669 52,293 81,141
Angular Positioning Accuracy arc sec. ±60
Repeat Positioning Accuracy arc sec. ±30
Available Cam Ratio - 6:1, 8:1, 10:1, 12:1, or 16:1
Max. Output Speed RPM 66 (6:1), 50 (8:1), 40 (10:1), 33 (12:1), 25 (16:1)
Nominal Output Speed RPM 33 (6:1), 25 (8:1), 20 (10:1), 16 (12:1), 12.5 (16:1)
 
Nominal Dial Plate Diameter mm 630 810 1,000 1,350 1,710 2,070
inch 25" 32" 40" 53" 67" 81"
Dial Plate Pilot Bore Diameter mm 70 100 120 172 230 275
inch 2.75" 3.93" 4.72" 6.77" 9.05" 10.82"
Stationary Hollow Bore Diameter mm 17 34 45 57 100 127
inch 0.66" 1.33" 1.77" 2.24" 3.93" 5.00"
Maximum Axial Load N 7,390 13,880 18,470 27,770 59,890 90,020
lbf 1660 3,120 4,150 6,240 13,460 20,230
Maximum Radial Load N 2,630 3,760 5,830 11,080 15,440 19,440
lbf 590 845 1,310 2,490 3,470 4,370
Max. Output Bending Moment N*m 260 440 790 1,720 3,160 4,840
lb*in 2,300 3,890 6,950 15,200 28,000 42,820

 

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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