Steel Bronze Powder PTFE Fibre Bushing Self-lubricating Standard Bearing Anti-wear Bushes

Steel Bronze Powder PTFE Fibre Bushing Self-lubricating Standard Bearing Anti-wear Bushes
Product Advantages:
1)Good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions.
2)Very good performance in lubricated applications particularly in marginally lubricated applications.
3)Suitable for linear, oscillating and rotating movements.
4)Lead-free material match RoHS specifications.
AVAILABILITY
Bearing forms made to order: standard forms in special dimensions, half-bearings, special shapes obtained by stamping or deep drawing, bearings with locating notches, lubricant holes and machined/stamped grooves, customized bearing designs
TRUCTURE AND COMPOSITION
Metal-Polymer Composite Material
Steel Back + Porous Bronze Sinter +
PTFE + Solid Lubricant
MICROSECTION
Sliding layer
PTFE + Solid Lubricant
Porous Bronze Sinter
Steel Backing
Dry | Good |
Oil lubricated | Good |
Grease lubricated | Fair |
Water lubricated | Not recommended |
Process fluid lubricated | Fair |
BEARING PROPERTIES
GENERAL | Unit | Value | |
Maximum load, p | Static Dynamic | N/mm2 N/mm2 | 250 140 |
Operating temperature | Min Max | °C °C | - 200 280 |
Coefficient of linear thermal expansion | Parallel to the surface | 10-6/K | 11 |
Normal to the surface | 10-6/K | 30 |
DRY | |||
Maximum sliding speed, U | m/s | 2.5 | |
Maximum pU factor | N/mm2 x m/s | 1.0 | |
Coefficient of friction | 0.03 - 0.25 * |
OIL LUBRICATED | |||
Maximum sliding speed, U | m/s | 5.0 | |
Maximum pU factor | N/mm2 x m/s | 10.0 | |
Coefficient of friction | 0.02 - 0.08 |
RECOMMENDATIONS | |||
Shaft surface roughness, Ra | Dry Lubricated | µm µm | 0.3 - 0.5 ≤ 0.05 - 0.4 * |
Shaft surface hardness | Unhardened acceptable, improved bearing life > 200HB |
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