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SF-1S Stainless Steel Pb-free Self-lubricating Bearing

Stainless Steel Pb-free Self-lubricating Bearing

Features

SF-1S is of oil resistant, acid resistant, alkaliresistant and seawater resistant, more over, there is no lead in the PTFE surface layer and so is particularly fit for bushings in food stuff machines, alkali flow meters, pumps motion elements in pharmaceutical machines, printing machines chemical engineering machines and other ocean industry. This is a triple layers composites bush, the base material being a bronze plate and a film of heat resistant power filled PTFE being calendered onto the sintered spherical bronze interlayer.

Material Structure

  1. PTFE with Oil fibre 0.01~0.03mm
  2. Porous bronze 0.2~0.3mm
  3. Stainless steel backing 0.7~2.3mm

Available forms

Bushes, flanged bushes, WC thrust washers, strip and other non-standard parts and so on.

Application Feature

  • PTFE with oil fibre can protect the shaft, while machine in operation.
  • It is of low friction coefficient, good anti-wear.
  • Good running in property.
  • It fits well in motion of circumgyration, sway and reciprocate.
  • Good anti-corrosion.
  • It can be used in food machine, pharmaceutical etc, due to lead-free.
  • It is mainly used in the condition of strong acid and alkali, such as chemical Industry, pumps, valves etc.

Specification

Max Load Static load 250N/mm2   Friction Coef Dry friction 0.08~0.20
Low-speed Rotation 140N/mm2 Oil Lubrication 0.02~0.07
Rotation、Oscillation 60N/mm2 Max linear velocity Dry friction 2.5m/s 
Max PV Dry friction 3.6N/mm2．m/s Oil Lubrication 5m/s 
Oil Lubrication 60N/mm2．m/s Thermal conductivity 42W(m．K)-1 
Operation Temp. -195℃~＋280℃ Coefficient of thermal expansion 12x10-6/K 

SF-1

SF-1T

SF-1W

SF-1P

SF-1B

SF-1D

SF-1S