Thomson Linear A81420-OH Linear Bearing, Ball Bushing only, Precision Steel, 0.5 in, Closed, Not Self-aligning, Oil Hole, A Grad

Precision Steel Ball Bushing bearings offer great improvements in efficiency, productivity, and accuracy over high-friction plain bearings flat-ways.The all-steel design makes the bearing product line perfect for replacing plain bearings in high temperature applications.The steel sleeve anti-friction recirculating ball bushing provides rigid low drag movement – ~100x lower drag coefficient than a plain contact bearing.A coefficient of friction as low as .001. When replacing high friction plain bearings, Precision Steel Ball Bushing Bearings dramatically improve machine productivity and efficiency.For use with S class Shafting.SpecificationsSpecificationsValueAdjustable/Not AdjustableNot AdjustableClosed/OpenClosedGradeA GradeMaterialSteelNumber of Ball Circuits4Oil HoleOil HoleSelf AlignmentNot Self-aligningTemperature Max500 °FUPC Number662486100492Use with shafting ClassClass SWeight0.08 lbDimensionsDimensionValue[d] Shaft, Nominal Diameter0.5 in[C] Length Along Axis1.235 / 1.250 in[C1]0.951 / 0.9670 in[C2] Min0.046 in[D] Housing Bore recommended for Press Fit housing0.8740 / 0.8745 in[D] Recommended Housing Bore0.8750 / 0.8755 in[D], Nominal0.875 inPerformancePerformanceValueLoad Capacity, Dynamic85 lbf