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Properties
DP4B bearing é”›å²uitable for dry running, low coefficient of friction, lowerè??½wear, good sliding characteristics, the transfer filmè??½created can protect the mating metal surfaces, suitableè??½for rotating and oscillating movement, high chemicalè??½resistance, low absorption of water and swelling. DP4B materieal improved the friction and much good wearè??½resistance over the common SBU bearing range underè??½lubricated operation.
Material
| PTFE / Polymer Fibres +è??½Bronze + Bronze Backing |
Technical Data
| Physical and Mechanical Properties | Usage | ||
| Maximum Operating Temperature Tmax | 280æ??³C | dry | good |
| Minimum Operating Temperature Tmin | -200æ??³C | oil lubricated | very good |
| Maximum Static Load Psta,max | 250N/mmè™?? | grease lubricated | good |
| Maximum Dynamic Load Pdyn,max | 140N/mmè™?? | water lubricated | fair |
| Maximum Sliding Speed V-dry | 2.5m/s | process fluid lubricated | good |
| Maximum Sliding Speed V-oil lubricated | 5m/s | ||
| Maximum PV Factor-dry | 1N/mmè™??è·¯m/s | ||
| Maximum PV Factor-oil lubricated | 10N/mmè™??è·¯m/s | ||
| Coefficient of friction f-dry | 0.04-0.25 | ||
| Coefficient of friction f-oil lubricated | 0.02-0.08 | ||
Einsatzgebiete
| It is developed for high duty, oil lubricated, hydraulicè??½applications...Automotive suspension struts, shockè??½absorbers guide bushing, hydraulic cylinders, gear pumps,è??½motors, axial and radial piston pumps & motors. |
| It isè??½designed mainly for using under lubricated conditions and itè??½performs excellent wear resistance and low static/dynamicè??½friction coefficient. |
