Thrust Plate for a Stub Shaft Bearing Assembly
Thrust Plate for a Stub Shaft Bearing Assembly
(OP)
Being in Plastics, but not in the Bearing world. What would be the best material for a thrust plate?
The stub shaft or axle passes through a Housed ball bearing and is spring loaded, having about 3/8"-1/2" travel and must have some minimum preload on the spring to hold the axle firmly as the housing rotates (approx.200 RPM) and contacts the spring.
We are talking about a 7/16" Dia. axle and probably a .625" I.D. compression spring about 1" long at the end. Firm attachment of the spring to the axle is not a problem. Therefore, the spring will remain fixed (in pre-load) and the housing will rotate rubbing against the spring.
Should I mold a small cap for the spring using possibly Delrin material and possibly use a flat copper washer as the plate? Placing a roller or ball thrust bearing is not practicle, and the less noise the better. Any suggestions?
Operating temperature will be between 50 and 80 Degrees F.
Thank you!!
The stub shaft or axle passes through a Housed ball bearing and is spring loaded, having about 3/8"-1/2" travel and must have some minimum preload on the spring to hold the axle firmly as the housing rotates (approx.200 RPM) and contacts the spring.
We are talking about a 7/16" Dia. axle and probably a .625" I.D. compression spring about 1" long at the end. Firm attachment of the spring to the axle is not a problem. Therefore, the spring will remain fixed (in pre-load) and the housing will rotate rubbing against the spring.
Should I mold a small cap for the spring using possibly Delrin material and possibly use a flat copper washer as the plate? Placing a roller or ball thrust bearing is not practicle, and the less noise the better. Any suggestions?
Operating temperature will be between 50 and 80 Degrees F.
Thank you!!





RE: Thrust Plate for a Stub Shaft Bearing Assembly
Helical springs don't 'push' on their centerline, even if you draw them that way.
Using a bearing housing as a rubbing surface is not generally good practice.
You need to get an experienced mechanical guy on the team, on site, now.
Mike Halloran
Pembroke Pines, FL, USA
RE: Thrust Plate for a Stub Shaft Bearing Assembly
RE: Thrust Plate for a Stub Shaft Bearing Assembly
RE: Thrust Plate for a Stub Shaft Bearing Assembly