All Categories > Roller Bearings > Needle Roller Bearings > Heavy Duty Needle Roller Bearings > MR Series Heavy Duty Needle Roller Bearings with Inner Ring > Inner Ring Part No. MI-20-N Download PDF Download PDF Printable Page Email This Page Save To Favorites Please wait… Inner Ring Part No. MI-20-N, MR Series Heavy Duty Needle Roller Bearings with Inner Ring List Price QUOTE larger image Outer Ring and roller assembly with separable inner ringOuter ring and roller assemblies and associated inner rings are packed and shipped separately. For a complete bearing, Specify both outer and inner numbers desired. Unit of Measure: Imperial Specifications Military Standard Number MS 500072-15 (B) Shaft Diameter 1.2500 in (B) Dimension Tolerance +0.0000/-0.0005 (D) Dimension 2.0625 in (D) Dimension Tolerance +0.0000/-0.0006 (W) Dimension 1.000 in (W) Dimension Tolerance +0.000/-0.005 (W1) Dimension 1.010 in (W1) Dimension Tolerance +0.000/-0.005 (H) Hole Dia. 3/32 in (R) Max. Fillet for Shaft & Housing 0.060 in Stationary Shaft Dia. 1.2496 in Stationary Shaft Dia. Tolerance +0.0000/-0.0005 Rotating Shaft Dia. 1.2505 in Rotating Shaft Dia. Tolerance +0.0000/-0.0005 Stationary Housing Bore Dia. 2.0632 in Stationary Housing Bore Dia. Tolerance +0.0000/-0.0005 +0.0000/-0.0007 Rotating Housing Bore Dia. 2.0621 in Rotating Housing Bore Dia. Tolerance +0.0000/-0.0007 Static Load Rating 15500 lb Basic Dynamic Rating 10300 lb Complete Assembly Item # MR-24-N DOWNLOADS Pitchlign Roller Bearing Interchange Tables (PDF, 389KB) Bearing Failure Analysis