
Lock nut KM 21
3 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: KM 21, lock nut, end view and section through the slots; dimensions from the manufacturer’s catalogue. Dimensions in mm
KM 21
KM 21 — lock nuts and washers, size 105 × 140 × 18 mm. The site lists 3 offers for this number and its equivalents from 3 brands, priced €3.76; 1 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.
- 105 mm
- DOutside diameter D Outside diameter = housing bore.
- 140 mm
- BWidth B Ring width.
- 18 mm
Same number KM 21: size and design match in the brand catalogues.1 of 3 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”.