Metric Bowman Oilless® Plain Bearings

Part Number: WMO 40 55 40

Product Logo
Bowman Oilless bronze plain bearings with graphite plug lubrication

Details

Inner Diameter40
Outer Diameter55
Length40

Material Specification

StructureCuZn25Al6Mn4 Bronze with solid graphite lubricant inserts
(alternative specifications are available on request)
 PV (N/mm² x m/s)3.3 max
Static load (N/mm²)100 max
Sliding speed (m/s)0.3 max
Operating temperature (°C)Up to 300
(alternative specs up to 400)
Coefficient of thermal expansion19 x 10-5/°C
Coefficient of friction0.16
Hardness (HB)210 min
Tensile strength (N/mm²)750 min
Elongation (%)12 min
Density (g/cm³)8

Tolerances & Fittings (Metric)

MinMaxTolerance
Recommended Housing Size5555.03H7
Inside Diameter40.02540.05
Overall Length39.739.9

PV Calculation

ValuesMaximum
Speed
rpm
119.366 rpm
Load
kg
16309.888 kg
PV Factor
N/A
N/mm² x m/s
3.3 N/mm² x m/s

⚠ Maximum PV Factor is 3.3! Reduce speed or load.

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BowMet® Plain Bearings