Bearing Inner Rings

RBC® IR8407 Pitchlign® Heavy Duty Inner Ring, 1-3/4 in ID x 2-1/4 in OD, 1.76 in OAW, For Use With Precision Ground Heavy Duty Needle Roller Bearings, 52100 Steel

Where it becomes impractical to meet the shaft raceway design requirements (hardness, case depth, surface finish, etc.) outlined in the engineering section, standard inner rings for drawn cup bearings are available. Inner rings for drawn cup bearings are designed to be a loose transition fit on the shaft and should be clamped against a shoulder. If a tight transition fit must be used to keep the inner ring from rotating relative to the shaft, the inner ring OD as mounted, must not exceed the raceway diameters required by the drawn cup bearing for the particular application.

Koyo IR-081212 Inch Series Inner Ring, 1/2 in ID x 3/4 in OD, 3/4 in OAW, For Use With HJ-122012 Heavy Duty Needle Roller Bearing, Steel

Koyo IR-101412 Inch Series Inner Ring, 5/8 in ID x 7/8 in OD, 3/4 in OAW, For Use With HJ-142212 Heavy Duty Needle Roller Bearing, Steel

Koyo IR-192420 Inch Series Inner Ring, 1-3/16 in ID x 1-1/2 in OD, 1-1/4 in OAW, For Use With HJ-243320 Heavy Duty Needle Roller Bearing, Steel

Where it becomes impractical to meet the shaft raceway design requirements (hardness, case depth, surface finish, etc.) outlined in the engineering section, standard inner rings for drawn cup bearings are available. Inner rings for drawn cup bearings are designed to be a loose transition fit on the shaft and should be clamped against a shoulder. If a tight transition fit must be used to keep the inner ring from rotating relative to the shaft, the inner ring OD as mounted, must not exceed the raceway diameters required by the drawn cup bearing for the particular application.

Where it becomes impractical to meet the shaft raceway design requirements (hardness, case depth, surface finish, etc.) outlined in the engineering section, standard inner rings for drawn cup bearings are available. Inner rings for drawn cup bearings are designed to be a loose transition fit on the shaft and should be clamped against a shoulder. If a tight transition fit must be used to keep the inner ring from rotating relative to the shaft, the inner ring OD as mounted, must not exceed the raceway diameters required by the drawn cup bearing for the particular application.

Koyo IR-242820 Inch Series Inner Ring, 1-1/2 in ID x 1-3/4 in OD, 1-1/4 in OAW, For Use With HJ-283720 Heavy Duty Needle Roller Bearing, Steel

Where it becomes impractical to meet the shaft raceway design requirements (hardness, case depth, surface finish, etc.) outlined in the engineering section, standard inner rings for drawn cup bearings are available. Inner rings for drawn cup bearings are designed to be a loose transition fit on the shaft and should be clamped against a shoulder. If a tight transition fit must be used to keep the inner ring from rotating relative to the shaft, the inner ring OD as mounted, must not exceed the raceway diameters required by the drawn cup bearing for the particular application.