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Overview
The R Series is a precision worm gear reducer developed specifically for driving our SANDEX units. It is designed to be mounted directly to the input shaft for a compact, accurate, lossless transfer of power. Adjustable preload minimizes backlash for smooth, even rotation. Sankyo reducers are fitted with responsive, durable clutch and brake units for frequent start/stop operation. These units also use the universally accepted Newman worm to ensure the best performance at all times.
Features
Wide Product Lineup
Reduction ratio: 5 to 50, Maximum input speed: 1800 rpm
Compact
Designed to mount directly on the input shaft of a SANDEX for minimal footprint.
Optional Clutch and Brake Units
All reducers can be fitted with responsive, durable clutch and brake units.
Various Mounting Configurations Available
In addition to the different mounting positions for the housing, the mounting direction of the clutch and brake unit can also be specified.
Specifications
Reducer (R Series) Specifications
Item Unit R48 R65 R80 R100 R125 R160
Maximum Input Shaft Speed rpm 1800 1800 1800 1800 1800 1800
Wheel Moment of Inertia kg・m2 8.05×10-4 2.43×10-3 5.32×10-3 1.73×10-2 5.5×10-2 0.22
Worm Moment of Inertia kg・m2 3.1×10-5 9.0×10-5 2.63×10-4 6.68×10-4 2.09×10-3 6.05×10-3
Wheel Backlash Degree 0.2 0.12 0.1 0.09 0.08 0.07
Worm Friction Torque N・m 0.45 0.6 1.0 1.5 2.2 3.0
Product Weight kg 3 10 18 30 45 100
Clutch Specifications   06          
Static Friction Torque N・m 5.5 11 22 45 90 175
Dynamic Friction Torque N・m 5 10 20 40 80 160
Stator/Rotor Mass kg 0.4 0.725 1.26 2.3 4.2 7.5
Armature Mass kg 0.06 0.1 0.24 0.46 0.9 1.8
Rotor Moment of Inertia kg・m2 7.35×10-5 2.24×10-4 6.78×10-4 2.14×10-3 6.3×10-3 1.93×10-2
Armature Moment of Inertia kg・m2 4.23×10-5 1.18×10-4 4.78×10-4 1.31×10-3 4.8×10-3 1.37×10-2
Rated Voltage V 24 VDC 24 VDC 24 VDC 24 VDC 24 VDC 24 VDC
Minimum Input Watts W 12 15 20 25 35 45
Brake Specifications   06          
Static Friction Torque N・m 5.5 11 22 45 90 175
Dynamic Friction Torque N・m 5 10 20 40 80 160
Stator/Rotor Mass kg 0.22 0.4 0.67 1.22 2.25 4.1
Armature Mass kg 0.06 0.1 0.24 0.46 0.9 1.8
Armature Moment of Inertia kg・m2 4.23×10-5 1.18×10-4 4.78×10-4 1.31×10-3 4.8×10-3 1.37×10-2
Cooling Fan Moment of Inertia kg・m2   9.65×10-5 2.95×10-4 8.35×10-4 2.5×10-3 9.25×10-3
Rated Voltage V 24 VDC 24 VDC 24 VDC 24 VDC 24 VDC 24 VDC
Minimum Input Watts W 12 15 20 25 35 45
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