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Metal Polymer Dry Bearings
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SF-2Y
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Product name: Bush for Gear Pump
Item No.:
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Features
1. It is excellent wear resistance and low friction performance in lubricated hydraulic applications.
2. It is excellent in chemical resistance.
3. It is excellent in cavitation and flow erosion resistance.
4. It is good fatigue strength.
Description
Metal-Polymer-Dry-Bearings-DU-DUB-DP4-DH-DX-HX-SS.pdf
Physical & Mechanical Properties
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Maximum Operating Temperature Tmax
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280
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°C
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Minimum Operating Temperature Tmin
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-200
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°C
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Maximum Static Load Psta,max
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250
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N/mm2
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Maximum Dynamic Load Pdyn,max
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140
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N/mm2
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Maximum Sliding Speed V-dry
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2.5
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m/s
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Maximum Sliding Speed V-oil lubricated
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5
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m/s
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Maximum PV Factor-dry
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1
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N/mm2 * m/s
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Maximum PV Factor-oil lubricated
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10
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N/mm2 * m/s
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Coefficient of friction f-dry
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0.04-0.25
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-
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Coefficient of friction f-oil lubricated
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0.02-0.08
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-
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Usage Range
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dry
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good
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oil lubricated
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very good
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grease lubricated
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good
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water lubricated
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fair
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process fluid lubricated
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good
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Possible Application
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Automotive:
Used in hydrodynamic or boundary lubricating condition of medium or high pressure gear oil pumps such as P=16-25Mpa, V= 3.5-5m/s. It shows the benefit of low friction coefficient, wear resistant and anti-impact properties. At hydrodynamic lubrication, the PV limit reaches to 120N/mm m/s. It is a best choicefor various kinds of gear pumps as well as plunger pumps, vane pumps and so on.
Industrial:
Compressors: scroll and reciprocating; pneumatic and hydraulic cylinders, high performance pumps: axial pistons, radial pistons, gears, vanes, etc.
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