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69.85 mm bore bearings

16 models with a 69.85 mm (2.750 in) bore across 1 bearing type, outside diameters from 112.712 to 168.275 mm. Tables are grouped by type; open a model for full specs and equivalents.

16 models 112.712–168.275 mm OD range 2 brands

Tapered Roller Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
29675-29620 29600 69.85 112.712 25.4 SKF open CN 121
29675-29620-NTN 4t-inch 69.85 112.712 25.4 NTN open CN 106
33275-33462 4t-inch 69.85 117.475 30.162 NTN open CN 129
482-472-NTN 4t-inch 69.85 120 29.794 NTN open CN 142
482-472 475 69.85 120 29.795 SKF open CN 163
47487-47420 47400 69.85 120 32.545 SKF open CN 188
47487-47420-NTN 4t-inch 69.85 120 32.545 NTN open CN 163
47487-47420A 47400 69.85 120 32.545 SKF open CN 188
29675-29630 4t-inch 69.85 120.65 25.4 NTN open CN 106
566-563 565 69.85 127 36.512 SKF open CN 217
566-563-NTN 4t-inch 69.85 127 36.512 NTN open CN 181
643-632 4t-inch 69.85 136.525 41.275 NTN open CN 215
655-653 4t-inch 69.85 146.05 41.275 NTN open CN 228
745A-742 4t-inch 69.85 150.089 44.45 NTN open CN 289
655-652 655 69.85 152.4 41.275 SKF open CN 270
835-832 4t-inch 69.85 168.275 53.975 NTN open CN 375

Exact-dimension interchange groups at 69.85 mm bore

These d×D×B envelopes at a 69.85 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 69.85 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 69.85 mm the catalog spans 112.712–168.275 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 k5 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 69.85 mm bore?

This index lists 16 verified bearing models with a 69.85 mm (2.750 in) bore across 1 bearing type, from 112.712 to 168.275 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 112.712–168.275 mm OD options for a 69.85 mm shaft?

On a fixed 69.85 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 69.85 mm bearings?

A 69.85 mm bore on a rotating inner ring normally uses a k5 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.