Centerless Grinder Operation

Provided by: ToolingU

“Centerless Grinder Operation” explains the basic procedures required to properly operate a centerless grinder - to avoid lobing and increase workpiece roundness, a centerless grinder should have the correct workpiece rotational speed, as well as an accurately positioned work rest blade, work guides, and workpiece centerline relative to the wheel centerline. Every centerless grinder has roughly the same structure, and understanding that structure and its required procedures allows operators to grind tightly toleranced parts with accuracy, safety, and speed. After taking this class, the user should be able to describe safe and effective operation of a centerless grinder.

Course Objectives:

  • Describe centerless grinding
  • Distinguish between throughfeed and infeed grinding
  • Distinguish between endfeed grinding and infeed-throughfeed grinding
  • Describe how the regulating wheel determines workpiece rotational speed
  • Describe the angle of inclination
  • Describe the methods used to achieve surface finish specifications
  • Explain the function of automatic size control systems
  • Describe how to correct workpiece kinks and bends
  • Describe lobing
  • Explain how to prevent lobing in centerless grinding setup
  • Explain the function of the beta ratio
  • Describe how gamma angle impacts workpiece roundness
  • Explain how to calculate work rest blade height
  • Describe how to achieve consistent workpiece diameter
  • Explain how to set work guides on the regulating wheel side of the machine
  • Explain how to set work guides on the grinding wheel side of the machine.

Recommended Background

  • Recommended for manufacturing personnel handling surface/cylindrical/centreless grinding equipment etc.

Course ID







Communication, Critical Thinking, Personal Effectiveness, Centerless Grinding, Safety

Method of Delivery


Estimated Effort

2.5 hrs



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