MPNbase

220 mm bore bearings

9 models with a 220 mm (8.661 in) bore across 2 bearing types, outside diameters from 270 to 460 mm. Tables are grouped by type; open a model for full specs and equivalents.

9 models 270–460 mm OD range 3 brands

Deep Groove Ball Bearings (8)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61844 61800 220 270 24 SKF open CN 78
61844-ZZ 61800 220 270 24 NSK ZZ CN 84
61944 61900 220 300 38 SKF open CN 151
61944-ZZ 61900 220 300 38 NSK ZZ CN 161
6044 6000 220 340 56 SKF open CN 247
6044-ZZ 6000 220 340 56 NSK ZZ CN 259
6244 6200 220 400 65 SKF open CN 296
6344 6300 220 460 88 NSK open CN 450

Spherical Roller Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
23044 23000 220 340 90 GENERIC-ISO open CN —

Selecting a 220 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 220 mm the catalog spans 270–460 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 220 mm bore?

This index lists 9 verified bearing models with a 220 mm (8.661 in) bore across 2 bearing types, from 270 to 460 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 270–460 mm OD options for a 220 mm shaft?

On a fixed 220 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 220 mm bearings?

A 220 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). In the ISO designation system 220 mm is bore code 44 (code × 5), so a 62-series bearing with this bore is the 6244.