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Type BCU
(Type FCU - bushing with a flange)
Sliding sleeves made of porous sintered bronze - standard CuSn10 (SAE841) with graphite addition (0.5-3% by volume), vacuum-soaked with SAE 30 oil (18-23% by volume).
These are bushings with very low operating clearance and long service life, designed for maintenance-free operation (no lubrication required!) and to operate at very high linear sliding speed (e.g. motors)
Dimensional series available in accordance with DIN 1494
Characteristics
Typical load capacity static≦40 N/mm2
Typical load capacity dynamic≦1,8 N/mm2
Sliding speed≦7m/s
Friction factorμ0,03
Hardeness25 HB
Maximum PV1,8 N/mm2 * m/s
Operating temp.-100 do +200oC
Tolerances:
- housingH7
- sliding surface aftre assemblingH7-H8
- shaftf7-h8
- bushing lenght and flange diameterjs23
Shaft hadreness200-300HB
Shaft roughnessRz ≦ 4