Marginal Lubrication Bearing for Agriculture Machines
| Price: |
US $ 3-5/Piece |
| Min Order: |
5000/Piece |
| Pay Type: |
L/C,T/T,Western Union,Paypal,Money Gram |
Marginal Lubrication Bearing for Agriculture Machines1.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 | Static | 250N/mm² |
| Dynamic | 140N/mm² |
| Oscillating | 60N/mm² |
| PV limit | Dry | 2.8N/mm².m/s |
| Oil | 22N/mm².m/s |
| Temp.limit | -40ºC~+130ºC |
| Friction Coeff. | 0.05~0.25μ |
| Speed limit | 0.25m/s |
| Thermal conductivity | 2.03Kcal/M.br.C |
| Coeff.of linear expansion | 51×10^(-6) perºC |
| Initial pre-lubrication at assembly required |
| Prod Model: |
SF-2 |
| Bearing Structure: |
Solid Bearing |
| Type Of Lubricant: |
Solid-Lubricated Bearing |
| Lubricant & Load: |
Hydrostatic Bearing |
| Bushing Material: |
Bronze |
| Bearing Direction: |
Thrust |
| Lubricating Way: |
Intermittent Fuel Control |
| Lubricating Film Thickness: |
Thin Film Lubrication |
ChuZhou Super Star Oilless Co., Ltd founded in 1999. Which is a professional manufacturer on various kind of bearings in China for over 20 years. We are making all kinds of slide bearings including DU PTFE composite bushing, DX POM composite bushing, bimetal bushing, wrapped bronze bushing, cast sliding bushings and wear plate bearing pad, sintered bronze bushing and sintering parts, graphite bearing, etc.
The shapes of bearings can be in sleeve, flanged, spherical, plate, washer, pad, ring, square etc.
Base materials in carbon steel, harden steel, iron, stainless steel, bronze, brass, copper, bronze-steel alloy. Lubricant materials in PTFE, teflon, POM, nylon, plastic, oil, graphite, grease, MOS2, etc.
In addition to, customized bearing are available.
Our main market is domestic and overseas, we export bearing to Middle East, South Africa, South-East Asia and so on, and win widely reputation.
This years we export to many bearings to Thailand, Vietman, India, Brazil and so on.
We will open more market in the future.
