Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Does the load capacity change in media lucbricated or dry running rolling bearings?

Lubrication

Does the load capacity change in media lucbricated or dry running rolling bearings?

by  tdenner  Posted    (Edited  )
Yes. The load capacity will decrease, when using rolling bearings in media lubricated or dry running conditions.
The catalog value is calculate for a perfectly lubricated bearing with oil or grease. If the bearing will be lubricated by media like water, liquid plastic, etc., the load capacity is only approx. 5.7%. The load capacity of a dry running bearing will be approx. 1.5%.
This values depend on the viscosity of the fluid and on the bearing material (HNS, ceramic, Inconel, ...)
Bearing manufacturers will calculate and design the bearings for applications with starved or no lubrication.
Register to add this FAQ to your archive
Register to rate this FAQ  : BAD 1 2 3 4 5 6 7 8 9 10 GOOD
Please Note: 1 is Bad, 10 is Good :-)

Part and Inventory Search

Back
Top