Unbearable Bearings
Older mechanical equipment of substantial size sometimes requires new
shaft bearings. This can involve the use of large bearing pullers, torches,
hammers and lots of labor time. A solution to this problem involves the use of
a rotary cut-off grinder typically used in the automotive industry. These
grinders usually use a 2-inch cut-off wheel. A larger 4- or 4 1/2-inch grinder
equipped with a cut-off wheel also works well, if space permits. The grinder
will cut through the bearing housing, bearing races and collars. Really
stubborn bearing units require two cuts at 180 degrees apart. Care must be
taken not to score the shaft.
This procedure really makes short work of frozen-on bearings without the use of
oxygen acetylene torches and large pullers. These grinders also work well on
rusted flange bolts, pipefittings and valve removal.
Bill Winmill
Francis H. Maroney Inc.
Haverhill, Mass.
Send Us Your Tool Tips!
If you have an idea that has
saved you time and money,
Plumbing &
Mechanical would
like to share your tip with our readers. You can e-mail your idea
directly to
PM
editor
Steve Smith at
smiths@bnpmedia.com,
or
mail it to him c/o PM, 1050 IL Route 83, Suite 200, Bensenville, IL
60106.
PM’s
Tool Tips is sponsored by Ridge Tool Co. Reader
tips chosen by our editors have a chance to win a RIDGID Tool Prize
Package.