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Reali-Slim® Thin Section Bearings

How Reali-Slim® bearings outperform
other thin section bearings
There are many reasons to choose Reali-Slim® bearings
(see other side), but none is more critical than Performance.
Design engineers know they can count on a Reali-Slim
bearing not just to do its job well, but to do it longer than
other bearings.
In side-by-side tests, Reali-Slim bearings consistently
outperform other thin section bearings. In the series
shown here, three competitors’ bearings failed within 24
hours while the Kaydon bearings ran for up to 120 hours
— more than five times longer.
76.0

Kaydon

71.2

Kaydon

59.9

Kaydon

120.4

Kaydon

23.2

Competitor A

12.5

Competitor B

19.1

Competitor C

0

25

50

75

100

125

Bearing Fatigue Life (in hours)
Each test applied approximately 60% of a bearing’s dynamic radial load rating to samples at a testing speed
of 1,780 rpm. For comparability, each bearing had a 4-inch bore. (Competitors’ bearings were obtained
through distribution channels.)
Each test continued until automatic shut-off (150% of baseline vibration level) or until audible noise indicated
possible bearing failure, then disassembled and inspected for spalling. After all were run to failure, the
elapsed times were entered into Kaydon’s Weibull analysis software to determine the fatigue life.

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