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SY

Bimetal Plain Bearings to Standard SAE 792
GGB SY Cylindrical bimetallic bearings for high loads and rough operating conditions
GGB SY Bimetallic bronze thrust washer with steel backing
GGB SY Bimetallic bronze sliding plate with steel backing
GGB SY Bimetallic bronze bush with plain grooves
GGB SY bimetallic bronze clinched bearing

Characteristics

  • Bimetal bearing with steel backing and bronze overlay
  • Particularly suitable for high specific loads with oscillating motion and low frequency
  • Applicable in rough operation conditions
  • High load capacity, very good resistance to fatigue strength at higher temperatures

 

AVAILABILITY

Bearing forms available in standard dimensions

  • Cylindrical bushes
  • Thrust washers

Bearing forms made to order: cylindrical bushes and thrust washers with non-standard dimensions, sliding plates, customized bearing designs

Operating performance

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SY
Dry Operation Poor
Lubricated Operation Good
Greased Operation Very Good
Machinable Applicable
RoHS Compliant Not compliant
Standard Sizes Available
Application Excellence
DP4®
Good
Very Good
Good
Consult with Applications Engineer
Compliant
Available
AuGlide™
Poor
Good
Very Good
Applicable
Compliant
Available
DU®
Very Good
Good
Fair
Consult with Applications Engineer
Not compliant
Available

Composition

Steel Backing and Leaded Bronze Overlay

Steel + CuPb10Sn10 with indents

Market applications

Technical specifications

  • General

    BEARING PROPERTIES Value Unit
    Maximum load, p
    - Static 300 44,000 N/mm2 psi
    - Dynamic 20,000 140 N/mm2 psi
    Operating Temperature
    - Min -40 -40 °C °F
    - Max °C °F
    Max Greased Temperature 150 300 °C °F
    Max Oil Lubricated Temperature 250 480 °C °F
    Greased/Oil Lubricated
    Maximum sliding speed, U 2.5 500 m/s fpm
    Maximum pU factor 2.8 80,000 N/mm² x m/s psi x fpm
    Coefficient of friction, f
    Greased 0.05 - 0.12 0.05-0.12
    Oiled 0.04 - 0.12 0.04 - 0.12
    Recommendations
    Shaft surface roughness, Ra ≤ 0.8 ≤ 32 µm µin
    Shaft surface hardness
    - Normal > 200 > 200 HB HB
    - For longer service life > 350 > 350 HB HB

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