Should My Shaft Collar's Bore Be Larger Than the Shaft Diameter?

Release Date: November 7, 2019

Do you need to buy an "oversized" collar to fit over your shaft? We discuss this common misconception in this edition of Ruland's Collar and Coupling Corner.

Transcript

Location: Milford, NH
Answer: This is a common question and misconception we see with shaft collars. The answer is definitely no. The bore size of the collar is intended to fit the equivalently sized shafting. In this case, a 30mm shaft collar is designed to fit a 30mm shaft. When we send the shaft collars we send them with a plus/plus tolerance. This is to be sure that a one-piece style will actually fit over the shaft end. As long as the user has precision shafting to a nominal tolerance a 30mm shaft collar would fit just fine. The 31mm shaft collar would have no chance of fitting.

You Might Also Be Interested In:

Shaft Collars - The full selection of Ruland shaft collars

Installation Instructions - Detailed installation instructions for Ruland shaft collars and couplings