ZHEJIANG TOP BEARINGS CO., LTD. |
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TOP BEARING is a professional supplier of self-lubricating bearings in China.Set good quality and service as one.Size customizable.
- 1 d hydraulic bearing. Is on the basis of - 1 p combined with the
oil cylinder and the working principle of the shock absorber and
design a new type of material, under the condition of no oil is
more wear-resisting, in addition to the product has the advantages
of - 1 p, especially suitable for reciprocating force frequent
tendency of big occasions. Its performance is similar to DP4, at
present the product gradually replace - 1 p products, suitable for
car, motorcycle shock absorber and a variety of hydraulic cylinder,
etc.
Performance indicators | data | |
Maximum load(P) | Static load | 250N/mm² |
Dynamic load | 140N/mm² | |
The highest line speed(V) | Dry friction | 2.5m/s |
Oil lubrication | 5.0m/s | |
High PV value | Dry friction | 3.8N/mm²・m/s |
Oil lubrication | 50N/mm²・m/s | |
The coefficient of friction(μ) | 0.04~0.20 | |
The use of temperature | -195℃~+280℃ | |
Coefficient of thermal conductivity | 42W/m・K |
Note: figure in the product can also according to different working
condition choose different substrate materials, such as: bronze
substrates ( - 1 b), stainless steel substrate ( - 1 s), and
lead-free (1W), and other products.
Agricultural machinery, tractors, combine harvesters, crop sprayers, bulldozer, grader, etc;Auto industry: the power steering pump, steering thrust pads, brake disc, shock absorber, door hinge, wiper, chairs, illustrates, air valve and electromagnetic pavilion, etc.;Office business machines, photocopiers, fax machines, printers, E-mail processor, etc.;Hydraulic components and valves, gear pump, ram pump, vane pump, ball valve, butterfly valve, cylinder, cylinder and other hydraulic components, etc.;Household appliances: refrigerators, air conditioners, vacuum cleaners, sewing machine, washing machine, microwave oven and fitness equipment, etc.And other logistics machinery, packaging machinery, textile machinery, port machinery, mining machinery, forest machinery and all kinds of engineering machinery and equipment.
- 1 d polymer surface resistance to chemical corrosion, so its
corrosion resistance mainly depends on the steel back of plating
and appearance. The steel back of tin or copper plated surface, can effectively prevent atmospheric corrosion; If you work in the
corrosive medium, the steel back can be galvanized, etc.
1) "running-in stage: PTFE surface layer mixture to dual surface fill the dual surface
depressions, and formation of transfer film, at this point, the
friction coefficient is bigger, material wear faster.
2) "stable" wear stage: after running-in friction into PTFE, the
friction between the low and stable friction coefficient, low wear
rate of materials smoothly.
3) a "dramatic" wear stage: porous PTFE lubricant consumption of
pore, the friction interface can't get enough amount of lubricant.
Bad lubrication between friction surface, the friction coefficient
rising rapidly, material grinding rate dramatically fast, until 70%
bronze exposed, 1 life close to the end.
1) the influence of PV value
PV value is to determine the wear life of- 1 effective index. If
required longevity, PV value must be reduced.
2) the influence of ambient temperature
The higher the temperature, - 1 the shorter service life.
3) dual effects
Dual USES alloy steel or hard chromium plated shaft, surface
roughness Ra - 0.4-0.63 range, - 1 bearing service life can be
improved significantly.In addition to standard products show in the
catalogue, you can also provide non-standard products according to
customer's requirement or order.
Material | Stainless Steel Base+Bronze Powder +PTFE |
Typical Application | the corrosion resistant part in dyeing machinery and ocean industry, etc. |
Max Static Load | 250N/mm² |
Max Dynamic Load | 140N/mm² |
Max Oscoillation Load | 60N/mm² |
Max Line Speed | Dry 2.5m/s, Oil > 5m/s |
PV Value Limit | Dry 1.8N/mm².m/s,Oil 3.6N/mm².m/s |
Friction Coefficient | Dry 0.08~0.20, Oil 0.02~0.12 |
Mating Axis | Hardness >220, Roughness 0.4~1.25 |
Working Temperature | -200~+280℃ |
Thermal Conductivity | 40W/mk |
Coefficient Of Linear Expansion | 11×10-6/K |
In addition to the standard product catalog is displayed, we provide non-standard product or to order according to customer requirements. |