SB-30 Type

SB – 30

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

The bearings from the SB-30 family are made of a full bronze CuSn8 body. This alloy is particularly suitable for sliding couplings lubricated with oil or grease, and very resistent to chemical and environmental agents. The sliding surface is machined with several diamond-shaped dimples so that the lubricants can fill them and be gradually released during use. The range of products is available as cylindrical bearings, flanged bearings, washers, strips and custom-shaped items. The most common SB-30 applications are for earth moving machines (excavators, dumping-tracks, etc..) and agricultiral machines.

SB – 31

MATERIAL – CUSN8 BRONZE NON-SELF-LUBRICATING

The bearings from the SB-31 family are made of a full bronze CuSn8 and designed after the SB-30 type. The main difference is given by the lubricating system made of through-holes in the body of the bearing instead of dimples on the sliding surface. This provides a higher capacity of storing lubricant. The SB-31 is mainly used with paste and grease lubricants, where the maintenance frequency is lower. The range of products is available as cylindrical bearings, flanged bearings, washers, strips and custom-shaped items.

SPECIFIC MAXIMUM
LOAD (pv)

Static150 N/mm2

SB-30

  • High load capacity
  • Easy lubrication
  • Good chemical inertness to corrosive agents
  • High thermal conductivity
  • Reduced housing size
  • Easy assembly
  • Wide range of standard articles
  • Possibility to have special articles

SB-31

  • High load capacity
  • Easy assembly and lubrication
  • Good chemical inertness to corrosive agents
  • High thermal conductivity
  • VAllows long maintenance intervals (greasing)
  • Wide range of operating temperatures
  • Reduced housing size
  • Possibility to have special articles
Dynamic60 N/mm2
MAXIMUM SPEED (v)With lubricants2 m/s
WORKING
TEMPERATURE		Minimum-40C°
Maximum+150C°