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127 mm bore bearings

10 models with a 127 mm (5.000 in) bore across 1 bearing type, outside diameters from 182.562 to 254 mm. Tables are grouped by type; open a model for full specs and equivalents.

10 models 182.562–254 mm OD range 2 brands

Tapered Roller Bearings (10)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
48290-48220 48200 127 182.562 39.688 SKF open CN 281
48290-48220-NTN 4t-inch 127 182.562 39.688 NTN open CN 249
67388-67322 67300 127 196.85 46.038 SKF open CN 395
67388-67322-NTN 4t-inch 127 196.85 46.038 NTN open CN 340
798-792 795 127 206.375 47.625 SKF open CN 424
74500-74850 4t-inch 127 215.9 47.625 NTN open CN 355
97500-97900 4t-inch 127 228.6 53.975 NTN open CN 355
HM926747-HM926710 4t-inch 127 228.6 53.975 NTN open CN 475
95500-95905 4t-inch 127 230 63.5 NTN open CN 580
HH228349-HH228310 4t-inch 127 254 77.788 NTN open CN 8201

Selecting a 127 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 127 mm the catalog spans 182.562–254 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 m6 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 127 mm bore?

This index lists 10 verified bearing models with a 127 mm (5.000 in) bore across 1 bearing type, from 182.562 to 254 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 182.562–254 mm OD options for a 127 mm shaft?

On a fixed 127 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 127 mm bearings?

A 127 mm bore on a rotating inner ring normally uses a m6 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.