900 mm bore bearings
9 models with a 900 mm (35.433 in) bore across 4 bearing types, outside diameters from 1090 to 1520 mm. Tables are grouped by type; open a model for full specs and equivalents.
9 models 1090–1520 mm OD range 1 brand
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| C30-900-KMB | C3000 | 900 | 1280 | 280 | SKF | open | CN | 12700 |
| C30-900-MB | C3000 | 900 | 1280 | 280 | SKF | open | CN | 12700 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| NCF18-900-V-HB1 | NCF1800 | 900 | 1090 | 85 | SKF | open | CN | 2240 |
| NU18-900-ECMA | NU1800 | 900 | 1090 | 85 | SKF | open | CN | 1980 |
| NCF28-900-V | NCF2800 | 900 | 1090 | 112 | SKF | open | CN | 3190 |
| NCF29-900-V | NCF2900 | 900 | 1180 | 165 | SKF | open | CN | 5940 |
| NU29-900-ECMA-HB1 | NU2900 | 900 | 1180 | 165 | SKF | open | CN | 5280 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 618-900-MA | 61800 | 900 | 1090 | 85 | SKF | open | CN | 618 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 294-900-EF | 29400 | 900 | 1520 | 372 | SKF | open | CN | 26700 |
Exact-dimension interchange groups at 900 mm bore
These d×D×B envelopes at a 900 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:
Selecting a 900 mm bore bearing
The bore fixes the shaft, not the bearing capacity. At 900 mm the catalog spans 1090–1520 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 900 mm bore?
This index lists 9 verified bearing models with a 900 mm (35.433 in) bore across 4 bearing types, from 1090 to 1520 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.
How do I choose between the 1090–1520 mm OD options for a 900 mm shaft?
On a fixed 900 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 900 mm bearings?
A 900 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). In the ISO designation system 900 mm is bore code 180 (code × 5), so a 62-series bearing with this bore is the 62180.