3/4" O.D. x 20 gauge plain steel roller with 1/4" diameter steel spring retained shaft and light oil bearings.
Construction:
Tube: 3/4" O.D.x 20 ga. plain steel
Axle: 1/4" diameter steel
Bearing: Commercial Light oil, press fit
Axle Retention: Spring retained
Weight: .06 + (.04 x BF)
Shaft Length: BF+1-1/2"