Simkawa
RFY Ball Screw Rod
RFY ball screw rod offers high precision, low backlash, and smooth motion—ideal for CNC machines, automation, and linear motion systems.
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RFY Ball Screw Rod Features
- Compact structure design
RFY series adopts precision miniaturized design, suitable for installation requirements of equipment with limited space.
- High-precision transmission performance
The screw is precisely processed and matched with the preloaded nut structure.
- Low backlash and low friction
Optimize the contact angle between the ball and the raceway to reduce friction and clearance.
- Stable operation and low noise
The silent circulation system design is adopted, with low vibration and low noise during operation.
simkawa drive system
Specifications of RFY Ball Screw Rod
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Structure and Material
| name | Material | Heat Treatment | Hardness |
| Screw | SCM450(S55C) | Induction hardening | HRC58°~62° |
| Nut | SCM415 | Carburizing and quenching | HRC58°~62° |
| Steel ball | SUJ2 | Roller furnace quenching | HRC60° or above |
Ball Screw Transmission Form
Nut drive type
In this design, the ball screw's nut is fixed to the device, while the screw itself is rotated by a motor or other drive device.
Ball Screw Transmission Form
Screw drive type
In this design, the lead screw is fixed and the nut is rotated by a motor or other drive device.
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