Bearings | BearingStar

BearingStar is the platform for Microfinish / Superfinish of ball and roller bearing raceways.

The surface precision machining of anti-friction bearings must be performed efficiently and flexibly in today’s world, all the while ensuring the highest levels of quality. BearingStar represent a modern, modular machine solution which has been designed specifically for these objectives.


  • BearingStar Mini
    BearingStar Mini

    Workpiece diameters:
    5 - 19 mm
    Workpiece width:
    2,5 - 15 mm
    Single step method

    Mehr erfahren
  • BearingStar 90
    BearingStar 90

    Outer diameter of outer ring:
    26 – 90 mm
    Inner diameter of inner ring:
    10 – 50 mm
    Ring width: 8 – 55 mm

    Mehr erfahren
  • BearingStar 200
    BearingStar 200

    Outer diameter of outer ring:
    85 – 200 mm
    Inner diameter of inner ring:
    50 – 180 mm
    Ring width: 15 – 80 mm

    Mehr erfahren
  • BearingStar 320
    BearingStar 320

    Outer diameter of outer ring:
    180 – 320 mm
    Inner diameter of inner ring:
    100 – 270 mm
    Ring width: 60 – 200 mm

    Mehr erfahren
  • BearingStar 200
    BearingStar 650

    Outer diameter of outer ring:
    200 – 650 mm
    Inner diameter of inner ring:
    180 – 580 mm
    Ring width: 20 – 300

    Mehr erfahren

Processing Principle



Thanks to Microfinish / Superfinish machining, the roundness and roughness of the relevant anti-friction bearing surfaces are significantly improved, thus delivering the highest levels of quality. After machining, the anti-friction bearings also display a higher load-bearing capacity and longer service life, as well as lower noise emissions.

  • Increase in precision and performance thanks to innovative Microfinish / Superfinish precision machining
  • Increased flexibility through several tool oscillation units in one machine, e.g. for ball or roller bearing raceways
  • Universal machine platforms for all anti-friction bearing types
  • Short set-up times thanks to the menu-driven set-up and work piece visualisation on the monitor
  • Interactive online direct service via the Internet


When working with innovative HyperFinish® technology you will achieve up to 35% shorter machining times and even greater work piece quality.

Your increased productivity will allow you to do without additional machining stations and/or machines, resulting in operational cost savings. Your benefits:

  • Approximately 20% shorter machining times thanks to a greater tool distance in the time unit
  • Up to 4 μm more material removal thanks to a higher level of tool cutting capability
  • Improved quality and form parameters thanks to a reduced oscillation angle
  • Approximately 30% less investment through the use of a 1-station machine instead of a 2-station machine

More information on HyperFinish® is available here.


  • HyperFinish® for ball and roller bearings
  • HyperFinish® for 4-point roller bearings
  • Zone Microfinish on logarithmic raceways for tapered roller bearings
  • Microfinish for highly durable and tribologically optimised raceways
  • Plunge-cut grinding process for ball and roller bearing raceways
  • Plunge-cut process for logarithmic profile forms
  • Overlapping stroke process for ball bearing raceways
  • Overlapping stroke process for ball bearing raceways
  • Puls-Microfinish for roller bearing raceways
  • 1-step process for 1 machining station
  • 2-step process for 2 machining stations
  • 2-step process for 1 machining station (Duplex process)
  • Honing stone Microfinish with 3 NC axes interpolation for large spherical raceways
  • Microfinish of ball and roller bearing raceways in just one machine
  • Honing stone Microfinish of cylindrical or tapered rollers with crowned or logarithmic profile form


Thielenhaus Sales Department
Phone: +1 248-347-1611

Thank you a lot for your message!
Your contact: Thielenhaus Sales

Data protection: The data requested in this form will only be used to contact you. It will never be disclosed or sold to third parties. Additional technical user data (such as IP address, browser, screen resolution, operating system, etc.) are not being recorded using this form. For more information about privacy, please visit our Privacy Policy .

Mandatory fields: Fields marked with * are mandatory.
Please enter your name!
Please enter your company's address!
Please enter your email!
Please enter your company's name!
Please enter your phone number!
Select files...

In order to optimize our website for you and to be able to continuously improve it, we use cookies. By continuing to use the website, you agree to the use of cookies.
Further information on cookies can be found in our privacy policy.