WB802-T

  • High load capacity
  • Specially intended for use in difficult and dirty circumstances.
  • Good lubrication properties due to lubrication holes.

WB802-T-bearings are intended for radial and axial movements in constructions where exceptional long lubrication intervals are wanted.

The bearings are wrapped of a coldformable homogenous bronze, which because of this will obtain exceptional material properties. The standard sizes are fitted with holes, which are dispersed in a special way over the whole bearing-surface. These holes serve as lubricant reservoirs i.a. to rapidly build up a lubrication film in the moment of start and there-with reduce the start friction.

The properties of the WB802-material, together with the procedure of wrapping and calibration, make this type of bearing especially suitable for constructions, where high loads and relatively slow movements are occurring.

Technical data

Material:Homogeneous bronze (Cu 91,3%, Sn 8,5%, P 0,2%)
Yield point: (Rp0,2)ca 300 N/mm2
Tensil strenght: (Rm )ca 450 N/mm2
Hardness:ca 125-150 HB
Friction:0,08–0,25 µ
Max speed:2,5 m/s
Temperature range:-100 / +200 °C
LoadSpeed
Ca: 280 N/mm20 m/s
80 – 120 N/mm20,01 m/s
30 – 40 N/mm22,0 m/s

Tolerances: Bearings pressed into housing H7 get tolerance H9. Recommended tolerance for the shaft IT 7 or IT 8 with position of tolerance e or f.

Lubrication: Additional lubrication ought to be done through the shafts or radial through the housings. All customary greases can be used e.g. greases with additives of graphite or molybdenum-disulphide.

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WB802-T
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