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Thermal Properties of Ultracomp Bearings
| Coeffificient of Thermal Expansion (in/in/°F x 10E5) | UC200 | UC300 | UC400 | UC500 |
|---|---|---|---|---|
| Perpendicular to Laminate | 6.24 | 6.24 | 6.24 | 6.24 |
| Parallel to Laminate | 3.3 | 3.3 | 3.3 | 3.3 |
| Maximum Operating Temperature | ||||
| Short Term | 350 | 350 | 350 | 350 |
| Long Term | 266 | 266 | 266 | 266 |
| Minimum Operating Temperature | Cryogenic | Cryogenic | Cryogenic | Cryogenic |
Calulating Thermal Expansion of an Ultracomp Bearing
Formula: Bearing Wall Thickness x T x CoTE
Example: 2″ ID x .250″ Wall BearOperating At 125°F.
Wall = .250 x 2
Formula: Bearing Wall Thickness x T x CoTE
Example: 2″ ID x .250″ Wall BearOperating At 125°F.
Wall = .250 x 2
| Ambient Temp = 68°F | – Operating Temp. 125°F |
| – Difference is 57°F |
Therefore – 2 x .250 x 57 x .0000624 = 0.0018
Bore Closure Due to Thermal Expansion 0.0018″ (Perpindicular)
