Machining of ball bearing raceways inner and outer rings

Technical specifications

Working stations:

Workpiece diameters:
13 – 90 mm (Race 707)
30 – 180 mm (Race 717)

Contact angle:
0 – 55°


Mr. Christian Wußler
Mr. Christian Wußler

Superfinishing Machines

Bearing Industry

+49 7834 866-118
Mr. James Lospaluto
Mr. James Lospaluto

Sales USA

+1 401-294-1712

Range of application

The innovative Supfina Race 707 and Race 717 are setting new standards in Superfinishing ball ­bearing inner and outer rings. Both have been optimized to meet the highest productivity demands, while achieving best quality results, fast ­set-up times and superior reliability.

Valuable input from our customers, combined with extensive experience of the Supfina 727 machine types for the large diameter range, are the cornerstones of this newly developed machine concept.

The Race 707 and Race 717 cater to different diameter ranges. While the Supfina Race 707 can machine rings of up to 90 mm diameter, the Race 717 covers a range of up to 180 mm.



  • Deep groove ball bearing
  • Angular contact ball bearing
  • Spherical roller bearing
  • Wheel bearing
  • 2 operating stations
  • 2 Superfinishing units
  • Vertical workpiece spindles
  • NC positioning of the
  • Superfinishing units
  • NC-controlled spindle drives
  • Variable centering systems
  • Automatic loading and unloading
  • Multi-step process with automatic sequence
  • State-of-the-art control system
  • Integrated control cabinet
  • Multi-range tooling 
  • High productivity due to minimized loading times
  • Low tooling cost
  • Set-up times < 15 minutes
  • Operator friendly HMI design
  • Optimum accessibility
  • Small footprint
  • Swivel unit for angular contact ball bearing operation
  • Optional attachment for OR outer diameter finishing