BEARINGDEX
Tapered roller

30212 bearing

60 mm bore, 110 mm outside diameter, 23.75 mm width (2.3622 × 4.3307 × 0.935 in).

Dimensions

mminch
Bore d602.3622
Outside diameter D1104.3307
Width T23.750.9350

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

3Tapered roller
02Dimension series 02: width 0, diameter 2 (light)
12Bore code 12 × 5 = 60 mm