Koyo IR-88 Inch Series Regular Width Inner Ring, 1/2 in ID x 3/4 in OD, 0.515 in OAW, For Use With B-126, B-128, J-126, J-128, M-1261, M-1281 Drawn Cup 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.
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BrandKoyo
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UPC605790212512
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Manufacturer Part NumberIR-88
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CountryUSA
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FinishPolished Chrome
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MaterialSteel
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TypeRegular Width
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SeriesIR Inch Series
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Inside Diameter1/2 in
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Outside Diameter3/4 in
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Overall Width0.515 in
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Suitable For Use WithB-126, B-128, J-126, J-128, M-1261, M-1281 Drawn Cup Needle Roller Bearing
- Ideal choice when shaft is not practical to use as inner raceway
- Designed to meet established inch tolerances
- Designed to be wider than matching drawn cup bearing
- Maximum shaft fillet radius cannot exceed inner ring bore chamfer
- Designed to provide a loose transition fit on the shaft and should be axially 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 must not exceed the raceway diameter for the matching drawn cup bearing after being mounted on the shaft
- After mounting, if OD of inner ring exceeds the required raceway diameter for matching bearing, ring should be ground to proper diameter while mounted to shaft
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Alternative Part NumberIR88PBL125
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UNSPSC31171547
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Catalog
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Koyo IR-88 Inch Series Regular Width Inner Ring, 1/2 in ID x 3/4 in OD, 0.515 in OAW, For Use With B-126, B-128, J-126, J-128, M-1261, M-1281 Drawn Cup 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.
Koyo IR-2424 Inch Series Regular Width Inner Ring, 1-1/2 in ID x 1-3/4 in OD, 1.515 in OAW, For Use With Inch Series Drawn Cup 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.
