Metric SWB Plain Bearings

Part Number: WMSW 25 28 25

Details

Inner Diameter25
Outer Diameter28
Length25
Surface StyleSmooth

Material Specification

Structure Steel backing strip with a sintered bronze layer
PV (N/mm² x m/s) 2.8 max
Static load (N/mm²) 150 max
Sliding speed – With Oil (m/s) 10 max
Sliding speed – With Grease (m/s) 2.5 max
Operating temperature (°C) 250 max
(dependant on lubrication)
Coefficient of friction – With Oil 0.5 to 0.12
Coefficient of friction – With Grease 0.5 to 0.15
Sintered layer hardness (HB) 60-100

Tolerances & Fittings (Metric)

Min Max Tolerance
Inside Diameter When Fitted2525.033
Recommended Housing Size2828.021
Overall Length24.7525.25
Shaft Diameter24.95924.98
Wall Thickness1.5071.559

PV Calculation

Values Maximum
Speed
rpm
7639.437 rpm
Load
kg
9556.575 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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