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Chuzhou Super Star Oilless Bearing Co., Ltd.

Bearing, Lubrication Bearing, Bearing Bush manufacturer / supplier in China, offering Self Lubrication Bronze Bearing Bush, Wrapped Bronze Bearing for Construction Machines, Steel Plain Bearing for Gear Pump and so on.

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Self Lubrication Bronze Bearing Bush

FOB Price: US $3-4 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $3-4/ Piece
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Production Capacity: 50000PCS/Month
Transport Package: Standard Exort Carton Pack
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: SF-2
  • Type of Lubricant: Oil-Lubricated Bearing
  • Bushing Material: Self-Lubrication
  • Lubricating Way: Maintenance-Free Bearing
  • Trademark: superstar
  • Bearing Structure: Split Plain Bearing
  • Lubricant & Load: Hydrodynamic Bearing
  • Bearing Direction: Radial
  • Lubricating Film Thickness: Thin Film Lubrication
  • Origin: China
Product Description
1.SF-2 is trip-layer self lubricating material that can fill modified POM plastic as surface layer;it is benignant boundary lubrication material,therefore,it is particularly applicable high-load low-speed rotating and wing movement,as well as in the condition that frequent loaded start-stop is the requirement while hydrodynamic lubrication membrane is difficult to form,in the parts such as bearing,thrust washer,sliding block,ball socket and so on.SF-2 can take full advantage of less grease to work long time without lubrication maintenance under boundary lubrication condition.But under oil-free condition,SF-2 the frictional behavior and permissible PV value is relatively low,so generally storage pit can be formed on the plastic surface,where lithiumbased lubricant grease or silicone grease and so on should be applied when being installed.
2.SF-2 material follows special wearing rule as shown in Fig.4,infinitesimal abrasion can occur in R phase when being applied with grease and then being installed.But after the R phase,the boundary lubrication condition will disappear and wearing will be exaggerated.If you do refill with oil,the product can be drastically held by non-remarkable wearing and its life will also be greatly extended.Therefore the advantage of SF-2 material is that oil shall be added with an interval of R,which is remarkably longer that that of R other metal materials.It is approximately five times as long.
3.When SF-2 bush is installed with application of grease such as lithiumbased or silicone grease,its service life varies from the PV value under working condition,for instance,when PV value is about 2.5MPam/s,its can be above 10,000hr(see the table for details)
The cycle R of lubrication maintenance of SF-2bush is about the half of its service life.For instance,when PV=25Mpam/s,it is required to be oil-lubricated every 100hr.
 
Tech.Data
 
Max.Load
Static250N/mm²
Dynamic140N/mm²
Oscillating60N/mm²
PV limitDry2.8N/mm².m/s
Oil22N/mm².m/s
Temp.limit-40ºC~+130ºC
Friction Coeff.0.05~0.25μ
Speed limit0.25m/s
Thermal conductivity2.03Kcal/M.br.C
Coeff.of linear expansion51×10-6 perºC
Initial pre-lubrication at assembly required


Self Lubrication Bronze Bearing Bush
Noted: bearing size besides above mentioned sizes, can be customized and produced. Customer please offer us the dimensions
 
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