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120 mm bore bearings

22 models with a 120 mm (4.724 in) bore across 3 bearing types, outside diameters from 150 to 260 mm. Tables are grouped by type; open a model for full specs and equivalents.

22 models 150–260 mm OD range 3 brands

Deep Groove Ball Bearings (18)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61824 61800 120 150 16 SKF open CN 29.1
61824-2RS 61800 120 150 16 SKF 2RS CN 29.1
61824-RSR 61800 120 150 16 SKF RSR CN 29.1
61824-ZZ 61800 120 150 16 NSK ZZ CN 32
61924 61900 120 165 22 SKF open CN 55.3
61924-2RS 61900 120 165 22 GENERIC-ISO 2RS CN —
61924-ZZ 61900 120 165 22 NSK ZZ CN 58.5
6024 6000 120 180 28 SKF open CN 88.4
6024-2RS 6000 120 180 28 SKF 2RS CN 88.4
6024-RSR 6000 120 180 28 NSK RSR CN 97
6024-ZZ 6000 120 180 28 SKF ZZ CN 88.4
6224 6200 120 215 40 SKF open CN 146
6224-2RS 6200 120 215 40 SKF 2RS CN 146
6224-RSR 6200 120 215 40 NSK RSR CN 171
6224-ZZ 6200 120 215 40 SKF ZZ CN 146
6324 6300 120 260 55 SKF open CN 208
6324-2RS 6300 120 260 55 SKF 2RS CN 208
6324-ZZ 6300 120 260 55 SKF ZZ CN 208

Spherical Roller Bearings (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
23024 23000 120 180 46 GENERIC-ISO open CN —
22224 22200 120 215 58 GENERIC-ISO open CN —
22324 22300 120 260 86 GENERIC-ISO open CN —

Tapered Roller Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32024 32000 120 180 38 GENERIC-ISO open CN —

Exact-dimension interchange groups at 120 mm bore

These d×D×B envelopes at a 120 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 120 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 120 mm the catalog spans 150–260 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 120 mm bore?

This index lists 22 verified bearing models with a 120 mm (4.724 in) bore across 3 bearing types, from 150 to 260 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 150–260 mm OD options for a 120 mm shaft?

On a fixed 120 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 120 mm bearings?

A 120 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 120 mm is bore code 24 (code × 5), so a 62-series bearing with this bore is the 6224.