BEARINGDEX
Cylindrical roller, NU

NU212 bearing

60 mm bore, 110 mm outside diameter, 22 mm width (2.3622 × 4.3307 × 0.8661 in).

Dimensions

mminch
Bore d602.3622
Outside diameter D1104.3307
Width B220.8661

Quick numbers

Pitch diameter dm85.0 mm
Section height (D − d)/225.0 mm
n·dm at 1,800 rpm153,000
n·dm at 3,600 rpm306,000

Compare against the maker's limiting speed. Speed calculator · L10 life

What the number means

NUCylindrical roller. Ribs on the outer ring only, so the shaft can float axially.
2Diameter series 2: light
12Bore code 12 × 5 = 60 mm

Same size, different bearing

These share the 60 × 110 × 22 mm envelope but carry load differently. They aren't drop-in swaps.