BEARINGDEX
Spherical roller

22218 bearing

90 mm bore, 160 mm outside diameter, 40 mm width (3.5433 × 6.2992 × 1.5748 in).

Dimensions

mminch
Bore d903.5433
Outside diameter D1606.2992
Width B401.5748

Quick numbers

Pitch diameter dm125.0 mm
Section height (D − d)/235.0 mm
n·dm at 1,800 rpm225,000
n·dm at 3,600 rpm450,000

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

What the number means

2Spherical roller
22Dimension series 22: width 2, diameter 2 (light)
18Bore code 18 × 5 = 90 mm

Same size, different bearing

These share the 90 × 160 × 40 mm envelope but carry load differently. They aren't drop-in swaps.