Bosch Rexroth Ball Nut – FAR-40×40 (R021F40057)

The Bosch Rexroth FAR-40×40 Ball Nut (Part #R021F40057) is a high-performance flanged ball nut engineered for smooth, accurate linear motion in demanding mechanical applications. Designed for 40mm ball screws with a 40mm lead, this component utilizes Bosch Rexroth’s precision-ground raceways and advanced recirculating ball design to achieve minimal friction and consistent accuracy under high load conditions. The flanged mounting configuration simplifies integration and alignment within motion assemblies, while the robust steel construction ensures durability, reliability, and long service life even in continuous-duty operations. Ideal for CNC routers, automation systems, and industrial actuators, the FAR-40×40 Ball Nut delivers superior performance for motion control systems requiring precision, stability, and efficiency.

• Specifications:
  • Manufacturer: Bosch Rexroth
  • Model: FAR-40×40
  • Part Number: R021F40057
  • Ball Screw Diameter: 40 mm
  • Lead: 40 mm
  • Mounting Type: Flanged (FAR Style)
  • Material: Hardened Steel
  • Recirculation System: Internal ball return design
  • Dynamic Load Capacity: High precision heavy-duty rating
  • Configuration: Right-hand thread
  • Lubrication: Grease or oil compatible
  • Noise Level: Low, optimized for smooth operation
  • Finish: Ground and polished for precision alignment

• Applications:
  • CNC routers, mills, and machining centers
  • Industrial automation and robotics
  • Linear actuators and gantry systems
  • Precision motion and positioning systems

• Features & Benefits:
  • Genuine Bosch Rexroth OEM component ensures performance and compatibility
  • Flanged body design allows for easy, stable mounting
  • Precision-ground internal geometry for reduced backlash
  • Long service life under high-speed and high-load conditions
  • Ideal for precision linear motion and automation applications