
Bearing NK 40/20
4 offers · 3 brandsPrices in euros incl. VATPrices include VAT at the Spain rate (21%); the cart recalculates VAT for your delivery country. Where there is no price, the page says “on request”: the manager names it after the call.
Fig. 1: NK 40/20, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm
NK 40/20
NK 40/20 — needle roller bearings, size 40 × 50 × 20 mm. The site lists 4 offers for this number and its equivalents from 3 brands, priced €2.98; 0 in stock at the supplier. Search the number in any spelling, with a hyphen, a space or run together: the page is the same.
- dBore diameter d Bearing bore = shaft diameter.
- 40 mm
- DOutside diameter D Outside diameter = housing bore.
- 50 mm
- BWidth B Ring width.
- 20 mm
Same number NK 40/20: size and design match in the brand catalogues.0 of 2 in stock


Match is judged by the size and design in the designation, using the brand catalogues; where data is missing, the row goes to “Check”.
