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See morePV value bearingsSized bearingsMatching seat holeMatches shaft designBearing lifeInterference bearing assemblyInner diameter after assemblyWith the gap calculationBearing assemblyBearing MaintenanceBearing storageBearing Inspection MethodsSurface roughnessCommon hardness values
SF-1 Metal self-lubrication uses low-carbon steel as the substrate, and the spherical copper powder layer is sintered in the middle. The PTFE material is used as the working layer. The material has load-bearing capacity. The intermediate copper powder layer transfers the heat generated by the bearing and improves the combination of the plastic layer and the substrate. strength. PTFE is suitable for dry friction conditions and develops materials based on lubrication conditions, friction coefficient, and durability requirements.
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Note: The products in the figure can also be based on different working conditions to choose different matrix materials, such as: bronze substrate (SF-1B), stainless steel substrate (SF-1S), and lead-free (SF-1W) and other formula products.
Agricultural machinery: tractors, combine harvesters, crop sprayers, bulldozers, graders, etc;
Automotive industry: power steering pump, steering gear thrust washers, disc brakes, shock absorbers, door hinges, wipers, chair recliners, air valves, and solenoid valves;
Office business machinery: copiers, fax machines, printers, mail processors, etc.
Hydraulic components and valves: gear pumps, piston pumps, vane pumps, ball valves, butterfly valves, cylinders, cylinders and other hydraulic components;
Household appliances: refrigerators, air conditioners, vacuum cleaners, sewing machines, washing machines, microwave ovens and fitness equipment;
And other logistics machinery, packaging machinery, textile machinery, port machinery, mineral machinery, forest machinery and various types of engineering machinery and equipment.
SF-1 The surface polymer is chemically resistant, so its corrosion resistance mainly depends on the steel back and the outer plating. The back surface of the steel is plated with copper or tin, which can effectively prevent atmospheric corrosion; if it is used in corrosive media, the steel back can be galvanized.
1)“Running together”Stage: The surface layer PTFE mixture fills the dual-surface pits to the dual-surface transfer and forms a transfer film. At this time, the friction coefficient is large and the material wears faster. As shown in the I curve.
2） “stable”Wear stage: The friction after running-in becomes PTFE friction, the friction coefficient is low and stable, and the wear rate of the material is low and stable. As shown in the area II curve.
3）“sharp”Wear stage: The consumption of PTFE lubricant in the pores of the porous layer does not allow a sufficient amount of lubricant to be obtained between the frictional interfaces. The lubrication between the friction surfaces is poor, the friction coefficient rises rapidly, and the wear rate of the material is also sharply accelerated. When the 70% bronze is exposed, the lifetime of the HXOB-10 is nearly terminated. As shown in the III curve.
1) Influence of PV value
The PV value is an effective indicator for determining the SF-1 wear life. If life is required to be extended, the PV value must be reduced.
2) Influence of ambient temperature
The higher the ambient temperature, the shorter the service life of SF-1.
3) Pairing effects
When the paired parts are made of alloy steel or hard chrome plating, the service life of the SF-1 bearing can be significantly improved when the surface roughness Ra is in the range of 0.4 to 0.63.
In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.
Jiashan Fusheng Slide Bearing Co., Ltd. is the production of various types of professional sliding bearing entity.
Enterprises to "keep making progress, and strive to first-class" for business purposes, and strive to provide customers first-class products and services.
