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SF-1 Plain Bush Bearing Bushing , PTFE Self Lubrication Multilayer Composite

SF-1 Plain Bush Bearing Bushing , PTFE Self Lubrication Multilayer Composite

Brand Name : TOB PTFE Self-Lubrication Bearings
Certification : ISO 16949
Place of Origin : China
MOQ : negotiated
Price : negotiated
Payment Terms : T/T
Supply Ability : negotiated
Delivery Time : negotiated
Packaging Details : Cartons and Pallets
Material : Steel + Porous Bronze + PTFE
Types : Wrapped bushes, Flanged Bearing, Thrust washer
Application : printing and dyeing machines, and machines used in the ocean industry, etc.
Working Temperature : -200~+280℃
Hardness : >120 HB
Max. Load : Static Load 250N/mm², Dynamic Load 140N/mm²
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SF-1 Plain Bush Bearing Bushing , PTFE Self Lubrication Multilayer Composite Bearings

SF-1 Plain Steel Bushing

SF-1 Plain steel bushing is a type of DU bushing. It's also called Teflon bearing, DU bush and PTFE lined dry sliding bearing, SF-1 bearing, and oil free bushes. SF-1 self-lubricating bearing has a common structure with other DU bearing.

Material structure:

1. PTFE / Pb or fiber mixture 0.01~0.03mm as sliding layer, provides an excellent initial transfer film, which effectively coats the mating surface of the bearing assembly, forming homogeneous oxide type solid lubricant film.

2. Porous bronze 0.2~0.3mm provides Max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE-lead mixture.

3. Low-carbon steel backing 0.7~2.3mm, provides fundamental structural support and gives exceptionally high load carrying capacity, excellent heat dissipation.

4. Tin-plating 0.005mm or copper plating 0.008mm, provides good corrosion resistance.


· Good wear and friction performance over a wide range of loads, speeds and temperature without oil

· Also perform well with lubrication

Maintenance-free, long life


· Standard cylindrical bushing, flanged bush, thrust washers and strips are available.

· Lead free type is also available

· All special designs are produced according to your requirement


PVB010 DU bearing is widely used in Lifting equipment, Hydraulics and valves, pneumatic equipment, medical equipment, textile machinery, agricultural equipment, construction equipment, material handing equipment, packaging equipment, automotive field, scientific equipment, drying ovens, office equipment, etc.

Technical Data:

Specific load capacity (static)

≤ 250 [N/mm²]

Specific load capacity (dynamic)

≤ 140 N/mm² at low speeds

Specific load capacity (rotating oscillating)


Friction value

0.03 to 0.25 µ


-200 to +280 [°C]

Max. Dry running Pv (Short-term operation)


Max. Dry running Pv (Continuous operation)


Max. Speed (dry running)


Max. Speed (Hydrodynamic operation)


Other Details:

Quality Standard: DIN 1494

Package: Standard export package

Standard Lead time: 20 days

Shipping mode: Courier, air plane or ship

Supply Ability: 500000000PCS/Month

Port of Loading: Shanghai

Certificate: ISO 9001:2008

HS Code: 8483300090


1. Well experienced OEM manufacturer

2. 10 years in the self-lubricating bearing industry

3. 60% products export to foreign countries

Physical and Mechanical Performance

Performance IndexDataPerformance IndexData
Max. LoadStatic Load250N/mm²Friction CoefficientGrease Lubrication0.08~0.20
Dynamic Load140N/mm²Oil Lubrication0.02~0.07
Oscillation Load60N/mm²Mating AxisHardness>120 HB
Linear VelocityGrease Lubrication2.5 m/sRoughnessRa=0.4~1.25
Oil Lubrication5 m/sWorking Temperature-200~+280℃
Max. PV valueGrease Lubrication3.6 N/mm²·m/sHeat-conducting Coefficient40 W/(m*k)
Oil Lubrication50 N/mm²·m/sHeat-expansion Coefficient (Axial)16*10^-6k

Product Tags:

jdb bearings


plain bearing bush

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SF-1 Plain Bush Bearing Bushing , PTFE Self Lubrication Multilayer Composite Images

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