|Place of Origin:||China|
|Brand Name:||TOB PTFE Self-Lubrication Bearings|
|Minimum Order Quantity:||negotiated|
|Packaging Details:||Cartons and Pallets|
|Material:||Tin-Bronze + Porous Bronze + PTFE||Types:||Wrapped Bushes, Flanged Bearing, Thrust Washer|
|Application:||Metallurgy Machine And Casting Machines, Consecutive Casting Machines, Cemetery Machines, Spiral Transporting Machines, Etc.||Working Temperature:||-200~+280℃|
|Max. Load:||Static Load 250N/mm², Dynamic Load 140N/mm²||Max. PV Value:||Grease 3.6 N/mm²·m/s, Oil 50 N/mm²·m/s|
metric sleeve bearings,
self lube bearings
DU bushings, the standard range of composite bearings are very comprehensive and covers, almost every standard size. This range comprises bushing and flanged bushings,v and strips.
SF Oilless Self-lubricating Series
JF Bimetallic Series
FB Bronze-Wrapped Series
FZ Linear Bearings Ball Retainer
FU Powder Metallurgy Oil Series
TF Graphite Mosaic Series
PTFE Soft Strips Series
Graphite Mosaic Self-lubricating Series
Cemented Carbide Mosaic High Wear-resistant Series
DU bushings Specification
DU bushing is composed of a specially designed surface layer of PTFE formulation and is specifically applied for the high PV bushes of gear oil pumps. It is to be used in hydrodynamic or boundary lubricating condition of medium or high pressure gear oil pumps such as P=16-25 Mpa, V=3.5-5 m/s. It shows the benefits of low friction coefficient, wear resistant and anti-impact properties. At hydrodynamic lubrication, the PV limit reaches to 120N/mm2..m/s. It is a best choice for the bushes of various kinds of gear pumps as well as plunger pumps, vane pumps and so on.
DU bushings Technical Parameters
|Load capacity||Static||N/m m²||250||Max line speed V||m/s||10|
|Dynamic||N/m m²||140||Temp. limit||℃||-195~+270|
|Oscillating||N/m m²||60||Friction Coef.||u||0.03~0.18|
|Max PV limit||Oil||N/m m².m/s||60||Thermal conductivity||W/m.K||13|
|Dry||N/m m².m/s||4.3||Linear expansion||11x10-6/k|
DU bushings Application Feature
1. Small friction coefficient and stable under the condition of oil lubrication.
2. Good wear resistance, good impact resistance.
3. PV value can reach 120N/mm².m/s under the condition of fluid lubrication.
4. Has been widely used in all kinds of gear pump, piston pump, vane pump and other occasions, especially applied in the middle and high pressure gear pump under the conditions of fluid lubrication or boundary lubrication.
Packaging & Shipping
Packaging Details: Standard export packing, or as customers' requirement.