133.35 mm bore bearings
8 models with a 133.35 mm (5.250 in) bore across 1 bearing type, outside diameters from 177.008 to 234.95 mm. Tables are grouped by type; open a model for full specs and equivalents.
8 models 177.008–234.95 mm OD range 2 brands
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| L327249-210 | L327200 | 133.35 | 177.008 | 25.4 | SKF | open | CN | 166 |
| L327249-L327210 | 4t-inch | 133.35 | 177.008 | 25.4 | NTN | open | CN | 140 |
| 48385-48320 | 4t-inch | 133.35 | 190.5 | 39.688 | NTN | open | CN | 262 |
| 67390-67322 | 4t-inch | 133.35 | 196.85 | 46.038 | NTN | open | CN | 340 |
| 67391-67322 | 67300 | 133.35 | 196.85 | 46.038 | SKF | open | CN | 395 |
| 67391-67322-NTN | 4t-inch | 133.35 | 196.85 | 46.038 | NTN | open | CN | 340 |
| 74525-74850 | 4t-inch | 133.35 | 215.9 | 47.625 | NTN | open | CN | 355 |
| 95525-95925 | 95000 | 133.35 | 234.95 | 63.5 | SKF | open | CN | 683 |
Exact-dimension interchange groups at 133.35 mm bore
These d×D×B envelopes at a 133.35 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:
Selecting a 133.35 mm bore bearing
The bore fixes the shaft, not the bearing capacity. At 133.35 mm the catalog spans 177.008–234.95 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 133.35 mm bore?
This index lists 8 verified bearing models with a 133.35 mm (5.250 in) bore across 1 bearing type, from 177.008 to 234.95 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.
How do I choose between the 177.008–234.95 mm OD options for a 133.35 mm shaft?
On a fixed 133.35 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 133.35 mm bearings?
A 133.35 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.