Page 9 - Craft Bearing Catalog

Bearing Components and Features Specialty Components
Bearing Company Inc.

n Extended Inner Race

RAFT SPLIT BEARING’S standard ATL seals (discussed
below) eliminate shaft wear and provides exceptional
Csealing in most applications. However, bearings are
sometimes exposed to extreme conditions such as an existing
shaft that has grooves or roughness caused by prior bearings
with lip seals or other seals that do not turn with the shaft
or otherwise cut into the shaft surface. Extremely abrasive
conditions can also cause grit or other contaminants to work
under the O-rings and damage the seals or shaft.

Craft’s extended inner race, only available from Craft (patent
pending), is a valuable option in those cases where a damaged
shaft or extreme conditions would require shaft repair or
replacement. The inner race is lengthened under the seal, with

a machined track for the seal to clamp to the inner race—not
the shaft. This not only overcomes the problem of grooves or
roughness in the shaft caused by prior conventional bearings,
it protects against further shaft damage.

As always, the shaft must be clean, round, within tolerance,
and without high spots. The Craft extended inner race will
cover the normally encountered grooves, rough surfaces, and
gouges in a shaft commonly caused by prior conventional
bearings. Contact our technical department for any questions.

Craft Bearing Company, Inc. n Newport News, Virginia n www.craftbearing.com Craft Bearing Company, Inc. n Newport News, Virginia n www.craftbearing.com 7

Craft Bearing 2017 Catalog + Spe7 7 8/14/17 1:51:19 PM