LOGO VIIPLUS

Bronze With Lubricant Plugs Embedded

1 in stock

The high quality and toughness of VIIPLUS paper machine bearings reduce maintenance costs in the papermaking industry.

Description

Bronze With Lubricant Plugs Embedded are made of strong cast bronze based metal with special solid lubricants embedded. The base metal withstands high load and the solid lubricants provide for self-lubrication. The bushing shows excellent performance without pre-lubrication under conditions of extreme high/lower temperature with low speed. This material provides a maintenance-free bushing solution, particularly for high load, intermittent of oscillating motion.

FEATURES:

  • May work without oil for long periods
  • Extremely high load capacity, with good anti-wear and lower friction
  • Particularly appropriate for low speed and high load
  • Suitable for reciprocating, oscillation, or Intermittent motion where an oil film is hard to form
  • Good chemical resistant and anti-corrosion characteristics
  • Can be used in wide range of temperature from -40°c~+300°c

TECHNICAL DETAILS

  • Specific load capacity static150 [N/mm2]
  • Specific load capacity dynamic100 [N/mm2]
  • Sliding speed≤ 0.3 to 1.0 [m/s]
  • Friction value0.03 [µ] to 0.2 [µ] lubricated/dry
  • Temperature strain– 100 [°C] to + 300 [°C]
  • Max. PV-value1.5 [N/mm² x m/s]
  • Hardness: 190-220 HB

MATERIALS

  • Support materialCuZn25Al5
  • Sliding layerSolid lubricant surface: app. 25-30%
  • Other commonly used bronze alloys: CuAl10Ni, CuSn12Pb, CuSn7ZnPb

TOLERANCE DETAILS

  • Housing ØH7
  • Bushing inner-Ø after mountingPls consult our sales engineers, standard delivered tolerance: r6 or E7
  • Shaft tolerancef7 or h6

SHAFT MATERIAL

  • The shaft hardness should be at least 70-100HB harder than the bronze alloy.
    Surface roughness ≤ Ra 0.8
Main Metal Type
Gradeoilless bearingoilless bearingoilless bearingoilless bearingoilless bearingoilless bearing
MaterialCuZn25AI5Mn4Fe3CuSn5Pb5Zn5CuAI10Ni5Fe5CuSn12CuZn25AI5Mn4Fe3CuZn32A15Ni3
Density88.97.88.988
HB hardness>210>70>150>95>250>280
Tensile strength N/mm2>750>200>600>260>800>540
Yeild strength N/mm2>450>90>260>150>450>450
Elongation %>12>15>10>8>8>0.3
Coefficient of linear expansion1.9×10 -5/C1.8×10′-5/’C1.6×10′-5/’C1.8×10′-5/’C1.9×10 -5/C1.8×10′-5/’C
Max. temp.-40-+300C-40-+400’C-40-+400’C-40-+400’C‘-40~+150℃‘-40~+150℃
Max. load N/mm2100605070120150
Max. speed (Dry) m/min151020101515
Max. PV N/mm?*m/min (Lubrication)200606080200200
Compression deformation 300N/mm2<0.01mm<0.05mm<0.04mm<0.05mm<0.005mm<0.005mm

 

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