How does Centerless Grinding Work

Centerless grinding is a common, and the oldest machining process used to remove metals from work pieces. This technique is preferred by manufacturing facilities that specialize in high volume production runs.

Centerless grinding is preferred over other grinding methods due to its advantages such as:

  • Easy machining of even brittle materials without causing any deformation
  • Long parts can be machined with precision
  • It can render accurate roundness, excellent surface finish, and dimensional tolerances to the work piece

The Process of Centerless Grinding

The process of centerless grinding starts by placing the work piece between two wheels – the grinding wheel and the regulating wheel. Both these wheels rotate in the same direction at different speeds. The position of the machine’s work blade is such that it supports and holds the work piece at the correct height and position.

The grinding wheel, which is a stationary wheel, rotates on its axis to perform the grinding action. On the other hand, the regulating wheel, which is movable, performs the task of applying lateral pressure on the work piece. However, the regulating wheel does not remove any chips of material from the work piece. It only performs the function of pressing the work piece towards the grinding wheel, and controls the speed of the rotating work piece.

centerless grinding

During this machining process, the materials to be cut turn with the regulating wheel at the same speed. The grinding wheel, on the other hand, turns faster on its axis, and removes chips of materials as it passes by.

The two common techniques of centerless grinding used across several manufacturing facilities are through-feed and in-feed grinding. Both these techniques differ from each other mainly by the way the work piece is fed into the grinding wheel.

Centerless Grinding Services

There are several service providers available in the market who are specialized in grinding components to exceptionally close tolerances. Ensure partnering with a service provider who can grind the outside diameter of any cylindrical shape such as round bar, tube, pipe, pins, mixer shafts, and pump shafts with extreme precision. Also, choose a service provider who has expertise in grinding stainless steel, nickel alloy, aluminum, brass, bronze, high temperature metals, etc. To know more about centerless grinding services, log on to

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