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150 mm bore bearings

19 models with a 150 mm (5.906 in) bore across 3 bearing types, outside diameters from 190 to 320 mm. Tables are grouped by type; open a model for full specs and equivalents.

19 models 190–320 mm OD range 3 brands

Deep Groove Ball Bearings (15)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61830 61800 150 190 20 SKF open CN 48.8
61830-2RS 61800 150 190 20 NSK 2RS CN 52.5
61830-RSR 61800 150 190 20 NSK RSR CN 52.5
61830-ZZ 61800 150 190 20 NSK ZZ CN 52.5
61930 61900 150 210 28 NSK open CN 93.5
61930-2RS 61900 150 210 28 NSK 2RS CN 93.5
61930-ZZ 61900 150 210 28 NSK ZZ CN 93.5
6030 6000 150 225 35 SKF open CN 125
6030-2RS 6000 150 225 35 SKF 2RS CN 125
6030-RSR 6000 150 225 35 NSK RSR CN 138
6030-ZZ 6000 150 225 35 SKF ZZ CN 125
6230 6200 150 270 45 SKF open CN 174
6230-ZZ 6200 150 270 45 NSK ZZ CN 194
6330 6300 150 320 65 SKF open CN 276
6330-ZZ 6300 150 320 65 NSK ZZ CN 300

Spherical Roller Bearings (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
23030 23000 150 225 56 GENERIC-ISO open CN —
22230 22200 150 270 73 GENERIC-ISO open CN —
22330 22300 150 320 108 GENERIC-ISO open CN —

Tapered Roller Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32030 32000 150 225 48 GENERIC-ISO open CN —

Exact-dimension interchange groups at 150 mm bore

These d×D×B envelopes at a 150 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 150 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 150 mm the catalog spans 190–320 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 150 mm bore?

This index lists 19 verified bearing models with a 150 mm (5.906 in) bore across 3 bearing types, from 190 to 320 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 190–320 mm OD options for a 150 mm shaft?

On a fixed 150 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 150 mm bearings?

A 150 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 150 mm is bore code 30 (code × 5), so a 62-series bearing with this bore is the 6230.