High tin aluminum plain bearing

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High tin aluminum plain bearing

Standard white metal bearing, Heavy maintenance, engine bushing, connecting rod bushings

Bimetal bearings are a maintenance-bound composite sliding bearing. Oil or grease lubrication is necessary.

Wrapped bushing, steel/ aluminum

  • Support material steel, tin-plated
  • Sliding layer:AlSn20Cu 
SKU: AlSn20Cu bimetal bearing,Steel, tin-plated-1 Category: Tags: ,



High tin aluminum plain bearing

High tin aluminum bearing is made of steel backed with AISn20Cu Rolled on the surface.

The aluminum bearing product has the characteristics of moderate fatigue strength, bearing capacity, good corrosion resistance and good sliding performance.

bimetal bearing bushings steel backed sleeve

Standard white metal bearing, Heavy maintenance
Specific load capacity static to ≤ 100 [N/mm2] Temperature strain -10 [°C] to +200 [°C]
Specific load capacity dynamic to ≤ 70 [N/mm2]
Sliding speed ≤ 25 [m/s] Max. PV-value 6.0 [N/mm² x m/s]
Friction value 0.08 [µ] to 0.17 [µ] depending on lubrication
Support material Steel, tin-plated Sliding layer AlSn20Cu
Housing Ø H7 Shaft tolerance f7 to h8
Bushing inner-Ø after mounting H9
Steel, hardened or untempered
Serface roughness ≤ Ra 0.8
For high rotational speeds in a sealed and oil-lubricated application.


This high tin aluminum bearing product is commonly used as medium and small power internal combustion engine bearing bush, train engine bearing bush, air compressor bearing bush, is a new bushing product to replace babbitt alloy.

Normal Thickness of Bearing Bushing Tolerances of Series  (non-machinable)

Normal Thickness Tolerances of Series B (non-machinable) Tolerances of Series C (non-machinable)
1.0 -0.025 +0.25
2.0 -0.030 +0.25
2.5 -0.035 +0.25
3.0 -0.040 +0.30
3.5 -0.045 +0.30
3.5 -0.050 +0.30

AISn20Cu bimetal bearings


Application field
Construction machinery: chassis walking mechanism supporting wheel shaft sleeve, towing wheel shaft sleeve, tension wheel shaft sleeve; Automobile industry: balance shaft bushing, steel plate pin bushing, steering knuckle-main shaft bushing, connecting rod bushing, valve rocker arm bushing, camshaft bushing, differential bushing, gearbox bushing, internal combustion engine spindle bushing, thrust gasket; And plunger pump side piece, gear pump side piece, etc.


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