【Roller Drive】 Positioner 'RA Series' / Sankyo Seisakusho
"Zero Backlash Technology" allows for quick setting times and precise positioning! The speed variations during operation are minimal, enabling high-precision synchronization as well.
The "RA Series" is a high-precision zero-backlash positioner that features a wedge-shaped input shaft rib that contacts the roller follower under pre-load conditions, completely eliminating backlash. The input shaft made of alloy steel is manufactured using new processing theories and equipment to meet strict precision requirements. It is also balanced to suppress self-excited vibrations during high-speed rotation. Additionally, with a rolling element bearing structure, it transmits torque while rotating, and due to the rolling contact, it maintains initial precision for a long period of use. 【Features】 ■ Pre-load is adjustable via a mechanism on the input shaft side. ■ Quick settling time allows for precise positioning. ■ Minimal speed fluctuations during operation enable high-precision synchronization. ■ Improved speed and repeat accuracy allow for a thinner and more compact drive unit layout. *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Other Features】 - Requires almost no maintenance, reducing the lifecycle cost of FA systems. - RollerDrive has minimal output rotational fluctuation and can be used as a high-precision θ-axis positioner or alignment table. - Slim and compact, suitable for use in combination with X-Y stages and other equipment. - The large diameter hollow shaft of the output axis facilitates easy installation of piping and cables. - In addition to easy wiring and piping, it expands design flexibility by allowing the passage of other equipment's shafts. - The output section incorporates a high-rigidity cross roller bearing with extremely low fluctuation. - The motor shaft is rigidly connected to the input shaft, directly transmitting the motor's movement. - The motor base structure allows for absorption of assembly errors. *For more details, please refer to the PDF materials or feel free to contact us.
Price range
Delivery Time
Model number/Brand name
Sankyo Manufacturing Co., Ltd.
Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
