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36.512 mm bore bearings

8 models with a 36.512 mm (1.437 in) bore across 2 bearing types, outside diameters from 76.2 to 88.5 mm. Tables are grouped by type; open a model for full specs and equivalents.

8 models 76.2–88.5 mm OD range 2 brands

Insert Bearings (Y-bearings) (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
YSA-209-2FK-HA-2309 YSA2 36.512 85 35 SKF 2RS CN 33.2

Tapered Roller Bearings (7)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
31597-31520 4t-inch 36.512 76.2 29.37 NTN open CN 89.5
HM89448-HM89410 4t-inch 36.512 76.2 29.37 NTN open CN 86.5
HM89449-410 HM89400 36.512 76.2 29.37 SKF open CN 95.2
HM89449-HM89411 4t-inch 36.512 76.2 29.37 NTN open CN 86.5
3479-3420 4t-inch 36.512 79.375 29.37 NTN open CN 103
HM89249-HM89210 4t-inch 36.512 79.375 29.37 NTN open CN 95.5
44143-44348 4t-inch 36.512 88.5 25.4 NTN open CN 78.5

Exact-dimension interchange groups at 36.512 mm bore

These d×D×B envelopes at a 36.512 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 36.512 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 36.512 mm the catalog spans 76.2–88.5 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 36.512 mm bore?

This index lists 8 verified bearing models with a 36.512 mm (1.437 in) bore across 2 bearing types, from 76.2 to 88.5 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 76.2–88.5 mm OD options for a 36.512 mm shaft?

On a fixed 36.512 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 36.512 mm bearings?

A 36.512 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.