Metric WMX® Plain Bearings

Part Number: WMX 28 32 20 LB

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Details

Inner Diameter28
Outer Diameter32
Length20

Material Specification

Structure S.A.E. 1010 steel backing strip with sintered bronze and Acetal Copolymer layers
Max PV (N/mm² x m/s) 2.8
Max Static load (N/mm²) 140
Max Dynamic load (N/mm²) 70
Max Sliding speed – With Grease (m/s) 2.5
Operating temperature (°C) -40 to 110
Thermal Conductivity (W/mk) 2
Coefficient of friction – With Grease 0.05 to 0.15
Recommended shaft hardness (HB) 200 min

Tolerances & Fittings (Metric)

Min Max Tolerance
Inside Diameter When Fitted28.0628.155
Recommended Housing Size3232.025H7
Overall Length19.7520.25
Shaft Diameter27.96728
Inside Chamfers0.10.7
Outside Chamfers0.81.6

PV Calculation

Values Maximum
Speed
rpm
1705.232 rpm
Load
kg
7991.845 kg
PV Factor
N/A
N/mm² x m/s
2.8 N/mm² x m/s

⚠ Maximum PV Factor is 2.8! Reduce speed or load.

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