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Actuator Nuts and Helical Bearing Product Overview
Bearing ConstructionThe bearing consists of a self-lubricating woven Teflon® fiber and polyester liner supported by a filament wound continuous fiberglass fiber and epoxy resin matrix.
The mechanical properties of actutator nuts and helical bearings depends on the design. Consult Rexnord engineers for your specific application.
| Continuous | Intermittent | |
| Min °F | Max °F | Max °F |
| -65°(3) | 325° | 400° |
| (3) Bearings can be used in cryogenic applications. Consult a Rexnord engineer. | |||
| Duralon® | Aluminum | Steel | |
| Expansion (in/in/°F)Axial directionHoop direction | 15.0 x 10-67.0 x 10-6 | 13.3 x 10-613.3 x 10-6 | 6.0 x 10-6 6.0 x 10-6 |
| Conductivity(BTU in/Ft2 °F Hr) | 1.4 | 610 – 1100 | 95 – 185 |
| (4) Comparative values of the coefficient of expansion for the filament wound back-up material, aluminum and steel are given in table 2. The similarity between steel and composite bearings in the hoop direction should be noted. A higher value for thermal expansion is realized in the axial direction because of the fiberglass filament orientation. | |||
Más información sobre este producto consulte en: http://www.rexnord.com/sites/process/Pages/CBActuatorNutsandHelicalBearings.aspx?platformkey=1&businessunitkey=42&nodekey=-2003
