Hydraulic systems are suitable for hydraulic systems mainly because of their system disassembly difficulties and maintenance-free requirements which are important for their system characteristics.
High seal, friction resistant bearing sleeve
It is a new kind of material designed on the basis of vsb-1p Hydraulic bearing combined with the working principle of oil cylinder and shock absorber. It is more wear-resisting under the condition of no oil. In addition to the advantages of vsb-1p, the product is especially suitable for the occasion of reciprocating frequent large trend force.Its performance is similar to that of foreign DP4. At present, this product gradually replaces vsb-1p product, which is suitable for automobile, motorcycle shock absorber and various hydraulic cylinders and other fields.
Bearing application
Hydraulic components and valves: gear pumps, plunger pumps, vane pumps, ball valves, butterfly valves, cylinders, cylinders and other hydraulic components;
Chemical properties
The surface polymer of VSB-2 Hydraulic bearing sleeve is resistant to chemical corrosion, so its corrosion resistance mainly depends on the steel back and
exterior electrodeposit.Copper or tin plating on steel back surface can effectively prevent atmospheric corrosion;If working in corrosive medium, steel back can be galvanized, etc.
The main factors affecting the bearing sleeve life
1) the influence of PV value, which is an effective indicator to determine
the wear life of chb-1.If life extension is required, the PV value must be reduced.
2) the influence of ambient temperature. The higher the ambient temperature, the
shorter the service life of chb-1.3) the impact of dual parts
The service life of chb-1 bearing can be significantly improved when the dual part
adopts alloy steel or hard chromium plated shaft, and the surface roughness
Ra=0.4~0.63 range.In addition to the standard products shown in the catalog
non-standard products can be provided or ordered upon customer request.
Operating characteristics of hydraulic bearing
Phase 1 the surface layer PTFE mixture is transferred to the dual surface to fill the pits in the dual surface and form the transfer film.
Phase 2 After running, the friction becomes the friction between PTFE, the friction coefficient is low and stable, and the wear rate of the material is low and stable
Phase 3 The consumption of PTFE lubricant in the pores of the porous layer makes it impossible to obtain enough lubricant between the friction interfaces.With poor lubrication between friction surfaces, the friction coefficient rises rapidly, and the wear rate of the material accelerates rapidly, until 70% of the bronze is exposed, the hydraulic bearing life is close to the end.