
1.Part name: SF-2 bushing
2.Material:Steel backing + Sintered bronze + PTFE
3.Appearance:Tin or Copper plated
Boundary Lubrication Bushing SF-2 is composed of three layers: steel backing, sintered bronze layer and modified POM layer. It fits well for low speed, high load , normal temperature occasions with rotational , oscillating or frequent stop-start motion. It can works long time under boundary lubrication circumstances, if oil or grease is added, its working life can be prolonged further.
SF-2 It made of high quality low carbon steel backing with sintering porous bronze in the interlayer and rolled POM&PB compound on the surface. It can offer the good load capacity and wear-resistant. The product is applied to vehicle chassis, forging and pressing machine, metallurgical machinery, and hydraulic industry and rolling steel industry and so on.
SF-2H It made of high quality low carbon steel backing with
sintering porous bronze in the interlayer and rolled POM compound
on the surface. It can offer the good load capacity and
wear-resistant. The product is applied to vehicle chassis, forging
and pressing machine, metallurgical machinery, and hydraulic
industry and rolling steel industry and so on.
SF-2S
SF-2L It made of high quality low carbon steel backing with
sintering porous bronze in the interlayer and rolled POM compound
on the surface. It can offer the good load capacity and
wear-resistant. The product is applied to vehicle chassis, forging
and pressing machine, metallurgical machinery, and hydraulic
industry and rolling steel industry and so on. SF-2L is with blue
PTFE and SF-2S is with orange PTFE.
1. Recommended for applications involving intermittent operation or
boundary lubrication...
2. Automotive: suspension joints, kingpin assemblies and stub axles
of tucks, automobile driving joint hinges, steering and other
linkages, articulation joints, rear chassis hinges, fairleader
rollers...
3. Machine tool building industry: spindles in drill, grinding, and
milling machines, ram guide plates in multiram presses...
4. Agricultural equipment: gearbox, clutch, bale trips and wheel
caster swivels for bale accumulators, front axle pivot bearings,
steering idler box bearings and kingpin bearings for harvesters...
5. Be especially well-suited for applications where lubricant can
not be supplied continuously or repeatedly.
Technical Data | ||
Max. Load | Static | 250N/mm2 |
Dynamic | 140N/mm2 | |
Oscillating | 60N/mm2 | |
PV limit | Dry | 2.8N/mm2. m/s |
Oil | 22N/mm2. m/s | |
Temp. limit | -40 ~ +130° C | |
Friction Coeff. | 0.05 ~ 0.25μ | |
Speed limit | 0.25m/s | |
Thermal conductivity | 2.03Kcal/M. br. c | |
Coeff. Of linear expansion | 51— 10-6per° C | |
Initial pre-lubrication at assembly required |
ZHEJIANG TOP BEARINGS CO., LTD.
ZHEJIANG TOP BEARINGS CO., LTD. is a manufacturer and distribution of sliding bearings. Our products have been widely applied to more than 30 industries like automobile, engineering machinery, metallurgy, water conservancy and hydroelectric power and mechanical manufacturing. Also we can design for customer's specific requirement.
We have reformed boldly, absorbed social elites through strengthening talent training, fully implemented modern management mechanism and new marketing strategy and been dedicated to long-term development of self-lubricating bearing industry. To control quality strictly, we set up a complete quality management system (ISO9001 and ISO/TS16949) in the quality policy of “Top Quality, Top Credit, Sustainable Growth”. Our quality and performance have reached advanced level.
To expand more markets, stand on the word and meet diversified requirements of customers, we are actively expanding and integrating with international markets. Now our products are available in more than 20 countries and regions in Western Europe, America and Southeast Asia. We’ll strengthen industrial horizontal integration further, create scale effect, open up emerging fields and develop industrial advantages to realize our strategic target and create a bright future with friends.