BRO-MET®

wrapped bushing, Bronze CuSn8, DIN 1494 / ISO 3547, Low-maintenance

Technical details BRO-MET®

  • Specific load capacity static < 120 [N/mm2]
  • Specific load capacity dynamic < 40 [N/mm2]
  • Sliding speed ≤ 2.5 [m/s]
  • Friction value 0.05 [µ] to 0.12 [µ] depending on lubrication
  • Temperature strain - 40 [°C] to + 250 [°C]
  • Max. PV-value 2.8 [N/mm² x m/s]
  • The percentage of contact area on the ID is > 75%
BRO-MET_2_300dpi

Materials

  • Support material CuSn8P (DIN 17662)
  • alternative CuSn6P available

Tolerance details

  • Housing Ø H7
  • Bushing inner-Ø after mounting H9
  • Shaft tolerance f7 to h8

Shaft material

  • Steel, hardened or untempered, surface roughness ≤ Ra 0.8

Properties

  • Economic solution for bronze bearing application due to a thin wall thickness. High load capability and good stability with low abrasion. Suitable for rough working conditions, good corrosion resistance.

Range of application

  • Agriculture machinery, truck cranes & construction machinery, suitable for impact loads

Maintenance

  • BRO-MET® is a low maintenance bushing material. An initial greasing during installation is necessary, after that periodic greasing with oil or grease is mandatory. The diamond pockets are an excellent lubrication depot and keeping maintenance to a minimum.

Mounting advise

  • Housing: Chamfer min. 1.5 mm x 15-45°, for easy bushing alignment
    Shaft: Chamfer 5 mm x 15°, for easy insertion of the shaft
  • SBS advises to use a force fitting mandrel for the installation of the bushing. It might be necessary to apply some grease on the outer surface of the bushing when press fitting it into the housing.
  • Gluing: Adhesive should not contact the sliding surface!

Caption

* For higher requirements – e.g. higher temperature ranges – different materials are available in this category.

** The listed values in the material properties are valid for optimal operating conditions. By changing the conditions of application, e.g. an increase in the sliding speed or strain, these values could shift.

Special dimensions and imperial sizes are available on request