101.6 mm bore bearings
12 models with a 101.6 mm (4.000 in) bore across 1 bearing type, outside diameters from 146.05 to 212.725 mm. Tables are grouped by type; open a model for full specs and equivalents.
12 models 146.05–212.725 mm OD range 2 brands
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| BT2B332767A | tdo | 101.6 | 146.05 | 49.212 | SKF | open | CN | 267 |
| 52400-52618 | 4t-inch | 101.6 | 157.162 | 36.512 | NTN | open | CN | 208 |
| 687-672 | 675 | 101.6 | 168.275 | 41.275 | SKF | open | CN | 288 |
| 687-672-NTN | 4t-inch | 101.6 | 168.275 | 41.275 | NTN | open | CN | 247 |
| 780-772 | 4t-inch | 101.6 | 180.975 | 47.625 | NTN | open | CN | 315 |
| 861-854 | 4t-inch | 101.6 | 190.5 | 57.15 | NTN | open | CN | 420 |
| HH221449-410 | HH221400 | 101.6 | 190.5 | 57.15 | SKF | open | CN | 537 |
| HH221449-HH221410 | 4t-inch | 101.6 | 190.5 | 57.15 | NTN | open | CN | 490 |
| HH221449A-HH221410 | 4t-inch | 101.6 | 190.5 | 57.15 | NTN | open | CN | 490 |
| 941-932 | 4t-inch | 101.6 | 212.725 | 66.675 | NTN | open | CN | 525 |
| HH224335-310 | HH224300 | 101.6 | 212.725 | 66.675 | SKF | open | CN | 619 |
| HH224335-HH224310 | 4t-inch | 101.6 | 212.725 | 66.675 | NTN | open | CN | 635 |
Exact-dimension interchange groups at 101.6 mm bore
These d×D×B envelopes at a 101.6 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:
Selecting a 101.6 mm bore bearing
The bore fixes the shaft, not the bearing capacity. At 101.6 mm the catalog spans 146.05–212.725 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 101.6 mm bore?
This index lists 12 verified bearing models with a 101.6 mm (4.000 in) bore across 1 bearing type, from 146.05 to 212.725 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.
How do I choose between the 146.05–212.725 mm OD options for a 101.6 mm shaft?
On a fixed 101.6 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 101.6 mm bearings?
A 101.6 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). Bore diameters below 20 mm follow the 10/12/15/17 mm exception table rather than code × 5.