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38.1 mm bore bearings

31 models with a 38.1 mm (1.500 in) bore across 2 bearing types, outside diameters from 63.5 to 88.5 mm. Tables are grouped by type; open a model for full specs and equivalents.

31 models 63.5–88.5 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-HE-2309 YSA2 38.1 85 35 SKF 2RS CN 33.2

Tapered Roller Bearings (30)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
13889-13830 4t-inch 38.1 63.5 12.7 NTN open CN 28.7
LM29748-710 LM29700 38.1 65.088 18.034 SKF open CN 53
LM29748-LM29710 4t-inch 38.1 65.088 18.034 NTN open CN 48
LM29749-710 LM29700 38.1 65.088 18.034 SKF open CN 53
LM29749-711 LM29700 38.1 65.088 19.812 SKF open CN 53
13685-13621 4t-inch 38.1 69.012 19.05 NTN open CN 53
13687-13621 4t-inch 38.1 69.012 19.05 NTN open CN 53
19150-19281 4t-inch 38.1 71.438 15.875 NTN open CN 48
16150-16282 4t-inch 38.1 72 19 NTN open CN 53
16150-16284 16000 38.1 72.238 20.638 SKF open CN 60.3
16150-16283 16000 38.1 72.238 23.813 SKF open CN 60.3
28150-28300 4t-inch 38.1 76.2 20.638 NTN open CN 61.5
2776-2720 4t-inch 38.1 76.2 23.812 NTN open CN 81
2788-2720 2700 38.1 76.2 23.812 SKF open CN 92.1
2788-2720-NTN 4t-inch 38.1 76.2 23.812 NTN open CN 81
26878-26822 4t-inch 38.1 79.375 23.812 NTN open CN 85
3490-3420 3400 38.1 79.375 29.37 SKF open CN 112
3490-3420-NTN 4t-inch 38.1 79.375 29.37 NTN open CN 103
28150-28315 4t-inch 38.1 80 21.006 NTN open CN 61.5
27880-27820 4t-inch 38.1 80.035 24.608 NTN open CN 74.5
HM801346-310 HM801300 38.1 82.55 29.37 SKF open CN 106
HM801346-HM801310 4t-inch 38.1 82.55 29.37 NTN open CN 96.5
HM801346X-310 HM801300 38.1 82.55 29.37 SKF open CN 106
25572-25520 25500 38.1 82.931 23.812 SKF open CN 99.1
25572-25520-NTN 4t-inch 38.1 82.931 23.812 NTN open CN 84.5
3875-3820 4t-inch 38.1 85.725 30.162 NTN open CN 116
3580-3525 4t-inch 38.1 87.312 30.162 NTN open CN 104
44150-44348 4t-inch 38.1 88.5 25.4 NTN open CN 78.5
418-414 415 38.1 88.5 26.988 SKF open CN 123
418-414-NTN 4t-inch 38.1 88.5 26.988 NTN open CN 106

Exact-dimension interchange groups at 38.1 mm bore

These d×D×B envelopes at a 38.1 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 38.1 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 38.1 mm the catalog spans 63.5–88.5 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 38.1 mm bore?

This index lists 31 verified bearing models with a 38.1 mm (1.500 in) bore across 2 bearing types, from 63.5 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 63.5–88.5 mm OD options for a 38.1 mm shaft?

On a fixed 38.1 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 38.1 mm bearings?

A 38.1 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.