MPNbase

16 mm bore bearings

12 models with a 16 mm (0.630 in) bore across 1 bearing type, outside diameters from 22 to 24 mm. Tables are grouped by type; open a model for full specs and equivalents.

12 models 22–24 mm OD range 2 brands

Needle Roller Bearings (12)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
HK1612 HK 16 22 12 SKF open CN 7.37
HK1612FM HK 16 22 12 NTN open — 7.75
HK1616 HK 16 22 16 SKF open CN 10.5
HK1616F HK 16 22 16 NTN open — 11.1
HK1620-2RS HK 16 22 20 SKF 2RS CN 10.5
HK1622 HK 16 22 22 SKF open CN 12.8
HK1622ZWFD HK 16 22 22 NTN open — 13.3
RNA4901 RNA-49 16 24 13 SKF open CN 9.9
RNA4901-2RS RNA-49 16 24 13 SKF 2RS CN 8.09
NK16-16 NK 16 24 16 SKF open CN 11.7
NK16-20 NK 16 24 20 SKF open CN 14.5
RNA6901 RNA-69 16 24 22 SKF open CN 16.1

Selecting a 16 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 16 mm the catalog spans 22–24 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 j5 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 16 mm bore?

This index lists 12 verified bearing models with a 16 mm (0.630 in) bore across 1 bearing type, from 22 to 24 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 22–24 mm OD options for a 16 mm shaft?

On a fixed 16 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 16 mm bearings?

A 16 mm bore on a rotating inner ring normally uses a j5 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.