Metric SWB Plain Bearings

Part Number: WMSW 20 23 25 Y

Details

Inner Diameter20
Outer Diameter23
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 Fitted2020.033
Recommended Housing Size2323.021
Overall Length24.7525.25
Shaft Diameter19.95919.98
Wall Thickness1.5071.559

PV Calculation

Values Maximum
Speed
rpm
9549.297 rpm
Load
kg
7645.26 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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