Linear Bearing Tube Shaft, Shaft Dia 1.500 In, Dia Tolerance Min 1.499 In, Dia Tolerance Max 0.150 In, Length 26 In, 52100 Tubular Material, Minimum Surface Hardness 58 Rc, For Use With Thomson Linear Ball Bushing Bearings Technical Specification Item Linear Bearing Tube Shaft Shaft Dia. 1.500 Dia. Tolerance Min. 1.499 Dia. Tolerance Max. 0.150 Length 24 Material Steel Finish 8 Ra Max Min. Surface Hardness 58 Rc For Use With Thomson Linear Ball Bushing Bearings Additional Information 60 Case Linear Bearing Quick Shafts Provide straightness, smoothness, hardness, and precision for superior performance and prolonged travel life. Feature precision hardened ground inner race for linear bearings.