Metal-Polymer Plain Bearings Grease Lubricated POM Series has a composite structure consisting of a Tin with Low carbon steel backing, an intermediate layer of sintered bronze and a POM based sliding lining. Available in inch and metric sizes.
FLAT STRIPS POM composite bushings are referred to as prelubricated because their material is designed to operate with marginal lubrication.These bushing type effectively fills the gap between fully lubricated and dry sliding bushings.
Metric bearings and imperial bushings made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping, bearings with locating notches, lubricant holes and machined grooves, customized bushing designs.
Cylindrical bushes strip are available in two material groups Material group ptfe for maintenance-free, dry-running applications Material group POM in yellow,bule,red,black color.Bush Pom Coated Sleeve Bushing,Self Lubricating Bearings
Carbon Steel+Bronze+POM Strips
Plain bearings Bush Pom Coated Sleeve Bushing,elf Lubricating Bearing Bushing,High Quality Bushing Bearing Supplier , Find Complete Details about Pom Coated Sleeve BushingSelf Lubricating Bearing Bushing,High Quality Bushing Bearing Supplier,Bushing Bearing,Bush Bearing, Bushings Supplier or Manufacturer-Jiashan made to order from China.
Self-Lubricating Multilayer Composite Bushing is of excellent anti-abrasion performance,mainly due to the particular molecule structure of PTFE. The abrasion process can be generally divided into three phases, so there kinds of friction coefficient. See the right graph:
1. "Running-in" phrase: PTFE compound on the bushing is transferred to its mating surface and forms a lubricating film.At this phase,the friction coefficient is bigger, thus the abrasion pace is very quick. See the curve showed in area I of the graph. 2. "Stabilization" abrasion phrase: After the "Running-in phase", the friction happens between PTFE and PTFE,thus the friction coefficient is smaller and keeps steady. As a result,the wear rate is low and steady. See the curve showed in areaⅡof the graph.
3. "Sharp" abrasion phrase: As PTFE in the porous layer is slowly consumed up, not enough lubricant can be supplied to the gliding media. Friction coefficient and wear rate will rapidly rise. When 70% of the bronze surface is exposed, service life of Self-Lubricating Multilayer Composite Bushing closes to its end. See the curve showed in area of the graph.