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BK 090

Sliding bush BK090
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  • for grease lubrication: 2.8 N/mm² x m/s 
  • for oil lubrication: 10 N/mm² x m/s 
Permissible load
  • static: 140 N/mm² 
  • rotation, oscillation: 70 N/mm² 
Max. sliding velocity
  • 1 m/s
Friction coefficient
  • lubricated: 0.05 to 0.15 
Thermal expansion coefficient
  • 11 x 10-6 K-1 
Coefficient of thermal conductivity
  • 60 W/(m·K)
Surface pressure
  • 140 (≤ N/mm²) 
  • hydraulic systems 
Construction type
  • multi-lubrication friction bearing in rolled bronze 
Construction type addition
  • the bushes are suitable for rotational and oscillating movements 
  • CuSn8 bronze 
  • ISO 3547 
  • DIN 1494 
Temp. max.
  • 150 °C
Temp. min.
  • -50 °C
Customs tariff number
  • 84833080 
All characteristics

Product description

An initial lubrication with grease is recommended and continual lubrication significantly increases the service life of the friction bearing.
To be observed: peak to valley height of shaft Ra < 0.8 µm.
Observed hardness of shaft > 400 HB
Maintenance-free operation.
Suitable for dirty conditions.
Shock and vibration resistant.
High permitted load.
Good friction characteristics.
No water absorption.
Low backlash during operation.
Extremely space-saving.

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