BEARINGDEX
Thrust ball

51104 bearing

20 mm bore, 35 mm outside diameter, 10 mm height (0.7874 × 1.378 × 0.3937 in).

Dimensions

mminch
Bore d200.7874
Outside diameter D351.3780
Height H100.3937

Quick numbers

Pitch diameter dm27.5 mm
Section height (D − d)/27.5 mm
n·dm at 1,800 rpm49,500
n·dm at 3,600 rpm99,000

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

What the number means

5Thrust ball
11Dimension series 11: height 1, diameter 1 (extra light)
04Bore code 04 × 5 = 20 mm