Sleeve Bearing Material Technical Information
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Basics of...Sleeve Bearing Material
| Bearing Material | Material Characteristics | Temp Range | PV1 |
|---|---|---|---|
| Cast Bronze | SAE-660 Bronze has a nonporous, highly dense grain structure which gives the bearing long life. | 10° F to 450° F | 75,000 |
| Oil-Impregnated Bronze | SAE-841 Bronze is a vacuum impregnated with SAE-30 oil. When in motion oil rises to surface for lubrication, and restores itself when at rest. | 10° F to 220° F | 50,000 |
| Babbit | A composition of antimony, tin and lead line the bearing, providing strength and corrosion resistance at low cost. | 0° F to 130° F | 12,000 |
| Molded Nylon | Molded nylon 101 bearings provide economical alternative when the strength and performance characteristics of metal bearings are not required | -40° F to 200° F | 3,500 |
| MDS-Filled Nylon | Nylon bearings with Molybdenum Disulfide have low coefficient of friction, high wear resistance, and are resistant to alkalies and most weak organic acids. | -40° F to 175° F | 9,803 |
| UHMW-PE | (Ultra High Molecular Weight)-PE offers excellent resistance to chemicals and moisture, are self lubricating and strong. USDA and FDA approved. | -40° F to 180° F | 3,000 |
| Rulon | Rulon provides low coefficient of friction, broad temperature range and has excellent water resistance. FDA and USDA approved. | -400° F to 550° F | 10,000 |
| Frelon | A compound of PTFE, Frelon provides high strength, low wear, low friction, self lubrication, and a temperature range of -400° F to 500° F. Usually bonded to an aluminum housing, frelon lined bearings are corrosion resistant. | -400° F to 500° F | 15,000 |
| Vespel | Made from DuPont SP-21 polyimide resins to provide high load, temperature, and speed ranges. | -400° F to 550° F | 300,000 |
| PTFE/Fiberglass Composite | Lightweight, high strength multilayer epoxy fiberglass shell is lined with PTFE/nomex composite. Self lubricating, chemical and temperature resistant. | -290° F to 320° F | 5,000 |
| Nyliner® Thermoplastic | Injection-molded thermoplastic has good resistance to chemicals and wear. Needs minimal lubrication. | -40° F to 200° F | 3,500 |
1PV Rating measures a bearing′s performance capabilities. PV is calculated by multiplying the maximum surface pressure (P), by the maximum sliding velocity of surface feet per minute (V).
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