Bosch Rexroth Star Ball Nut – FEM-E-C 25x25R x 3.5-3 (1502-280-65)

The Bosch Rexroth Star Ball Nut FEM-E-C 25x25R x 3.5-3 (Part #1502-280-65) is a high-precision ball nut engineered for smooth, accurate linear motion in demanding mechanical applications. Designed for use with corresponding Bosch Rexroth 25mm ball screws, this ball nut offers excellent load-bearing performance, minimal friction, and extended service life thanks to its optimized recirculating ball design. Built with hardened steel construction and precision-ground raceways, it ensures low noise and vibration operation under continuous duty. Ideal for CNC machines, automation assemblies, and linear positioning systems requiring exceptional accuracy and repeatability.

• Specifications:
  • Manufacturer: Bosch Rexroth
  • Model: FEM-E-C 25x25R x 3.5-3
  • Part Number: 1502-280-65
  • Ball Screw Diameter: 25 mm
  • Lead: 25 mm
  • Recirculation System: End Cap Return (E-C)
  • Dynamic Load Rating: High-capacity precision class
  • Material: Hardened Steel
  • Lubrication: Grease or oil compatible
  • Mounting Type: Flanged (FEM Style)
  • Configuration: Right-Hand Thread, Preloaded Design
  • Finish: Black oxide housing with precision-ground raceways

• Applications:
  • CNC routers, mills, and lathes
  • Industrial automation and robotics systems
  • Linear actuators and gantry systems
  • Precision positioning or motion control assemblies

• Features & Benefits:
  • Genuine Bosch Rexroth Star precision component
  • High efficiency with minimal friction and wear
  • Flanged body for secure and simple mounting
  • Long service life and high dynamic load capacity
  • Ideal for high-precision linear motion applications