Metric WMX® Plain Bearings

Part Number: WMX 25 28 30

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Details

Inner Diameter25
Outer Diameter28
Length30

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 Fitted25.0525.131
Recommended Housing Size2828.021H7
Overall Length29.7530.25
Shaft Diameter24.96725
Inside Chamfers0.10.7
Outside Chamfers0.21

PV Calculation

Values Maximum
Speed
rpm
1909.859 rpm
Load
kg
10703.364 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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