BEARINGDEX
Tapered roller, inch set

LM12749 bearing

0.8656 inch bore, 1.81 inch outside diameter, 0.61 inch width (21.986 × 45.974 × 15.494 mm).

Dimensions

mminch
Bore d21.9860.8656
Outside diameter D45.9741.8100
Width T15.4940.6100

Quick numbers

Pitch diameter dm34.0 mm
Section height (D − d)/212.0 mm
n·dm at 1,800 rpm61,164
n·dm at 3,600 rpm122,328

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

What the number means

LMInch tapered roller series (L light, LM light-medium, M medium, HM heavy-medium)
12749Cone number. Mates with cup LM12710; Timken sells the pair as SET6.