SB-20 Type

SB-20 . SB-21

MATERIAL WITH ACETALIC RESIN (POM) LAYER NON-SELF-LUBRICATING

The SB-20 type is a composite material. It is made of a low-carbon steel shell to which a layer of porous bronze is sintered on, than impregnated with a layer of acetalic resin (POM). The sliding surface is machined with dimples, which will gradually release the lubricant loaded during the installation. The range of application for the SB-20 type is wide: from industrial and civil vehicles to construction machines and enywhere there is a mechanical joint needing continuous lubrication. The family of the SB-20 type offers sliding bearings, washers and strips in both metric and imperial (inch) dimensions.
The SB-21 type has an extra layer of acetalic resin (POM) to allow the mechanical finishing of inside diameter before the assembly in the housing guaranteeing a higher precision and better tolerances.

SB-20 TYPE MATERIAL WITH ACETALIC RESIN (POM) LAYER NON-SELF-LUBRICATING
SB-20 TYPE MATERIAL WITH ACETALIC RESIN (POM) LAYER NON-SELF-LUBRICATING

SPECIFIC MAXIMUM
LOAD (pv)

Static140 N/mm2

SB-20, SB-21

  • Good load capacity
  • Particularly suitable for rotation movements
  • Water-repellent (no swelling)
  • Minimum wear and excellent working life
  • Requiring little maintenance
  • Impact resistant
  • Wide range of operating temperatures
  • Reduced housing size
  • Easy assembly
Dynamic70 N/mm2
MAXIMUM SPEED (v)With lubricants2.5 m/s
WORKING
TEMPERATURE
Minimum-40C°
Maximum+130C°