Flowserve Bearing Gard - Manual

Installation, Operation
and Maintenance Instructions
Bearing Gard
TM
Section 1 - Description of Use
The Bearing Gard is a permanent, non-wearing bearing
protection device used to replace lip seals and simple
labyrinth seals in bearing housings for pumps, motors,
gearboxes and other pieces of rotating equipment. It's
main purpose is to retain lubrication in the bearing
housing and prevent the ingress of contamination as this
can lead to premature failure of the lubrication and
bearings.
Section 2 - Hazzard Summary
To ensure safe and reliable operation of the Bearing
Gard follow all installation, operation, and maintenance
instructions. Failure to comply with these instructions
may result in frictional heating of the Bearing Gard
components and will result in loss in performance.
Section 3 - Preparations for Installation
3.1 Remove the oil seal from the housing.
3.2 Inspect for and remove sharp edges from the
housing bore, keyways, and shaft steps where
Bearing Gard O-rings must pass.
3.3 Thoroughly clean both the shaft and housing bore.
3.4 Ensure Bearing Gard shaft O-ring position is
located on an area of the shaft free from scratches,
nicks, or dings.
3.5 Shaft and housing surface finish must be
0.8 micrometer (32 m in) or better.
3.6 Concentricity of the housing bore to the shaft must
to be maintained within 0.127 mm (0.005 inch) TIR.
Oil outlet
Contaminant
outlet
Rotor
Housing
Stator
Shaft
Bearing Gard
cross section.
Features vary
by design.
Oil outlet
Contaminant outlet
Top view
Bottom view
Maximum
oil level
To find your local Flowserve representative
and find out more about Flowserve Corporation,
visit www.flowserve.com