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1120 mm bore bearings

8 models with a 1120 mm (44.094 in) bore across 3 bearing types, outside diameters from 1360 to 1580 mm. Tables are grouped by type; open a model for full specs and equivalents.

8 models 1360–1580 mm OD range 2 brands

CARB Toroidal Roller Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
C49-1120-MB1 C4900 1120 1460 335 SKF open CN 13200

Deep Groove Ball Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
618-1120-MA 61800 1120 1360 106 SKF open CN 741

Spherical Roller Bearings (6)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
239-1120 23900 1120 1460 250 NTN open CN 10900
239-1120K 23900 1120 1460 250 NTN open CN 10900
230-1120B 23000 1120 1580 345 NTN open CN 17400
230-1120BK 23000 1120 1580 345 NTN open CN 17400
240-1120B 24000 1120 1580 462 NTN open CN 21700
240-1120BK30 24000 1120 1580 462 NTN open CN 21700

Selecting a 1120 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 1120 mm the catalog spans 1360–1580 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 1120 mm bore?

This index lists 8 verified bearing models with a 1120 mm (44.094 in) bore across 3 bearing types, from 1360 to 1580 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 1360–1580 mm OD options for a 1120 mm shaft?

On a fixed 1120 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 1120 mm bearings?

A 1120 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 1120 mm is bore code 224 (code × 5), so a 62-series bearing with this bore is the 62224.