BEARINGDEX
Self-aligning ball, wide

2210 bearing

50 mm bore, 90 mm outside diameter, 23 mm width (1.9685 × 3.5433 × 0.9055 in).

Dimensions

mminch
Bore d501.9685
Outside diameter D903.5433
Width B230.9055

Quick numbers

Pitch diameter dm70.0 mm
Section height (D − d)/220.0 mm
n·dm at 1,800 rpm126,000
n·dm at 3,600 rpm252,000

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

What the number means

2Self-aligning ball, wide
2Diameter series 2: light
10Bore code 10 × 5 = 50 mm

Same size, different bearing

These share the 50 × 90 × 23 mm envelope but carry load differently. They aren't drop-in swaps.