MPNbase

57.15 mm bore bearings

24 models with a 57.15 mm (2.250 in) bore across 2 bearing types, outside diameters from 96.838 to 140.03 mm. Tables are grouped by type; open a model for full specs and equivalents.

24 models 96.838–140.03 mm OD range 2 brands

Insert Bearings (Y-bearings) (4)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
YAT-212-204 YAR2 57.15 110 48.5 SKF open CN 52.7
YSP-212-204-SB-2F YSP2 57.15 110 51.7 SKF 2RS CN 52.7
YAR-212-204-2F YAR2 57.15 110 65.1 SKF 2RS CN 52.7
YSA-213-2FK-HE-2313 YSA2 57.15 120 43.5 SKF 2RS CN 57.2

Tapered Roller Bearings (20)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
387-382A-NTN 4t-inch 57.15 96.838 21 NTN open CN 86.5
387A-382A 4t-inch 57.15 96.838 21 NTN open CN 86.5
387AS-382A 4t-inch 57.15 96.838 21 NTN open CN 86.5
387S-382A 4t-inch 57.15 96.838 21 NTN open CN 86.5
28682-28622 4t-inch 57.15 97.63 24.608 NTN open CN 98
45289-45220 4t-inch 57.15 104.775 30.162 NTN open CN 144
462-453X-NTN 4t-inch 57.15 104.775 30.162 NTN open CN 127
469-453X 4t-inch 57.15 104.775 30.162 NTN open CN 127
469-453A 4t-inch 57.15 107.95 27.783 NTN open CN 127
390-394A 4t-inch 57.15 110 22 NTN open CN 99.5
469-454 4t-inch 57.15 110 27.795 NTN open CN 127
39580-39520-NTN 4t-inch 57.15 112.712 30.162 NTN open CN 153
39581-39520-NTN 4t-inch 57.15 112.712 30.162 NTN open CN 153
3979-3920 4t-inch 57.15 112.712 30.162 NTN open CN 132
33225-33462 4t-inch 57.15 117.475 30.162 NTN open CN 129
66225-66462 4t-inch 57.15 117.475 33.338 NTN open CN 144
623-612 4t-inch 57.15 120.65 41.275 NTN open CN 190
72225C-72487 4t-inch 57.15 123.825 36.512 NTN open CN 171
555S-552A 4t-inch 57.15 123.825 38.1 NTN open CN 175
78225-78551 4t-inch 57.15 140.03 36.512 NTN open CN 190

Exact-dimension interchange groups at 57.15 mm bore

These d×D×B envelopes at a 57.15 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 57.15 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 57.15 mm the catalog spans 96.838–140.03 mm outside diameter: the light sections suit compact housings and moderate duty, while the larger ODs use bigger rolling elements and carry substantially more load. Select first by the required dynamic load rating C for the calculated L10 life, then by available radial space.

For a rotating inner ring a k5 shaft seat with an H7 housing is the usual starting point; an interference fit plus thermal growth consumes internal clearance, so C3 is the common industrial default rather than CN. Sealed variants (-2RS, -ZZ) trade a small amount of speed for contamination protection and maintenance-free operation — compare the sealed and open versions of the same envelope before substituting one for the other.

Frequently asked questions

What bearings have a 57.15 mm bore?

This index lists 24 verified bearing models with a 57.15 mm (2.250 in) bore across 2 bearing types, from 96.838 to 140.03 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 96.838–140.03 mm OD options for a 57.15 mm shaft?

On a fixed 57.15 mm bore, a smaller outside diameter means a lighter section for limited housing space and moderate load; a larger OD with a wider ring carries more radial and axial load and lasts longer at the same duty. Compare the C dynamic load rating in each model table, then match seal type, internal clearance (CN/C3/C4) and precision class to the actual mounting and operating temperature.

What shaft fit and bore code apply to 57.15 mm bearings?

A 57.15 mm bore on a rotating inner ring normally uses a k5 shaft seat with an H7 housing bore (verify against the catalogue for heavy or stationary-ring duty). Bore diameters below 20 mm follow the 10/12/15/17 mm exception table rather than code × 5.