Lube related squeal at low bearing temperatures
Lube related squeal at low bearing temperatures
(OP)
Why is their a squeal in oil impregnated sintered bronze bearings (material B-910) at -30 deg. F when no squeal occurs when the oil lubricant is left out?





RE: Lube related squeal at low bearing temperatures
low temperature and acting as a brake. Do
you see an increase in torque? If particles
in the oil are not freezing and expanding,
I have no other explanation. What kind of
oil are you using?
RE: Lube related squeal at low bearing temperatures
Thanks for the response. Water may be present in the bearing and could be expanding when freezing causing a braking action. Higher current draw and slow motor starting accompanies the squeal while these symptoms are not apparent in the dry, no-squeal bearings.
RE: Lube related squeal at low bearing temperatures
As you know viscosity decreases with temperature. Is it possible your viscosity is way too low for the clearnaces within this bearing?
RE: Lube related squeal at low bearing temperatures
RE: Lube related squeal at low bearing temperatures