22 mm bore bearings
24 models with a 22 mm (0.866 in) bore across 2 bearing types, outside diameters from 28 to 56 mm. Tables are grouped by type; open a model for full specs and equivalents.
24 models 28–56 mm OD range 2 brands
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| HK2210 | HK | 22 | 28 | 10 | SKF | open | CN | 7.21 |
| HK2212 | HK | 22 | 28 | 12 | SKF | open | CN | 8.8 |
| HK2212FM | HK | 22 | 28 | 12 | NTN | open | — | 9.2 |
| HK2216 | HK | 22 | 28 | 16 | SKF | open | CN | 13 |
| HK2216-2RS | HK | 22 | 28 | 16 | SKF | 2RS | CN | 8.8 |
| HK2216F | HK | 22 | 28 | 16 | NTN | open | — | 13.2 |
| HK2220 | HK | 22 | 28 | 20 | SKF | open | CN | 15.7 |
| HK2220-2RS | HK | 22 | 28 | 20 | SKF | 2RS | CN | 13 |
| HK2220F | HK | 22 | 28 | 20 | NTN | open | — | 16.8 |
| RNA4903 | RNA-49 | 22 | 30 | 13 | SKF | open | CN | 11.4 |
| RNA4903-2RS | RNA-49 | 22 | 30 | 13 | SKF | 2RS | CN | 9.52 |
| NK22-16 | NK | 22 | 30 | 16 | SKF | open | CN | 14.2 |
| NK22-20 | NK | 22 | 30 | 20 | SKF | open | CN | 17.9 |
| RNA6903 | RNA-69 | 22 | 30 | 23 | SKF | open | CN | 18.7 |
| NKI22-16 | NKI | 22 | 34 | 16 | SKF | open | CN | 15.7 |
| NKI22-20 | NKI | 22 | 34 | 20 | SKF | open | CN | 19.4 |
| NA49-22 | NA-49 | 22 | 39 | 17 | SKF | open | CN | 23.3 |
| NKIA59-22 | NKIA | 22 | 39 | 23 | SKF | open | CN | 23.3 |
| NKIB59-22 | NKIB | 22 | 39 | 25 | SKF | open | CN | 23.3 |
| NA69-22 | NA-69 | 22 | 39 | 30 | SKF | open | CN | 36.9 |
| PNA22-44 | PNA | 22 | 44 | 20 | SKF | open | CN | 22 |
Exact-dimension interchange groups at 22 mm bore
These d×D×B envelopes at a 22 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:
Selecting a 22 mm bore bearing
The bore fixes the shaft, not the bearing capacity. At 22 mm the catalog spans 28–56 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 22 mm bore?
This index lists 24 verified bearing models with a 22 mm (0.866 in) bore across 2 bearing types, from 28 to 56 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.
How do I choose between the 28–56 mm OD options for a 22 mm shaft?
On a fixed 22 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 22 mm bearings?
A 22 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.