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Walter Ammerman Jr.

Walter Ammerman Jr. has been regrinding spindles for over 20 years and is president of Spindle Grinding Service Inc., Albion, Michigan.

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Article December 1, 2000 Walter Ammerman Jr.

A Tight Fit: General Industry Coverage

Part I: The author discusses how to maintain and repair machine tool spindles and what causes spindles to run out of round. Common sources of out-of-round spindles include loose bearings and improperly ground spacers. In-machine spindle repair is also discussed. Part II: There are three common ways to repair tapered toolholders: regrinding, replacing damaged material and chrome-plating.

Walter Ammerman Jr.

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