Ball Transfer Units / Tolerance Rings

Ball transfer units

Rexroth ball transfer units allow unit loads to be pushed, turned and steered with ease. They have been fully tried and tested as key modules of conveyor and feed systems, machining units and packing lines.


  • Feed rates of up to 2m/sec
  • Uniform high quality in all configurations
  • High levels of efficiency
  • Smooth running
  • Precise rolling under full load
  • Easy to assemble and dismantle

Tolerance Rings

Tolerance rings made of hard, embossed spring band steel are frictional-locking connection elements. Rexroth tolerance rings allow components to be connected quickly and cost-effectively. They replace elaborate positive-locking feather-key, pin, spline or screw-in connections, and help avoid expensive machining work.


  • Fast, cost-saving installation
  • Firm and secure fixing of machine components
  • Easy installation of connecting elements
  • Resistant to a wide range of chemicals
  • High level of temperature resistance
  • Special sizes available on request
  • Connecting elements possess wide tolerance range