Shaft Collars - Local Grainger Dealer

http://www.grainger.com/Grainger/shaft-c.../ecatalog/N-clj

Needle Thrust Bearings -

http://www.nationalprecision.com/needle-bearings/thrust.html


For a 0.500" shaft, Torrington needle thrust

Bearing NTA 815 (1)

Washer TRA 815 (2)

Verify dimensions for bearing and washer on pump shaft and gear, machine to fit.