Imperial SWB Plain Bearings

Part Number: WMSWI 28 04

Details

Inner Diameter0.875
Outer Diameter1
Length0.5
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 (Imperial)

Min Max Tolerance
Inside Diameter When Fitted0.8750.887
Recommended Housing Size11.012
Overall Length0.490.51
Shaft Diameter0.810.859
Wall Thickness0.0630.065

PV Calculation

Values Maximum
Speed
rpm
218269.636 rpm
Load
kg
6.69 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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