Metric WMU® Plain Bearings

Part Number: WMU 10 12 06

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Details

Inner Diameter10
Outer Diameter12
Length6
Backing MaterialStandard Steel

Material Specification

Structure S.A.E. 1010 steel backing strip with sintered bronze and PTFE layers
Max PV – Dry (N/mm² x m/s) 1.8
Max PV – Oiled (N/mm² x m/s) 2.8
Max Static load (N/mm²) 250
Max Dynamic load (N/mm²) 140
Max Sliding speed – Dry (m/s) 2.5
Max Sliding speed – With Oil (m/s) 5
Operating temperature (°C) -200 to 280
Thermal Conductivity (W/mk) 42
Coefficient of friction – Dry 0.02 to 0.20
Coefficient of friction – With Oil 0.02 to 0.15
Recommended shaft finish (Ra) 0.04 max (N5)
Recommended shaft hardness (HB) 200 min

Tolerances & Fittings (Metric)

Min Max Tolerance
Inside Diameter When Fitted9.9910.058
Recommended Housing Size1212.018H7
Overall Length5.756.25
Shaft Diameter9.9729.987
Inside Chamfers0.10.5
Outside Chamfers0.21

PV Calculation

Values Maximum
Speed
rpm
9549.297 rpm
Load
kg
1529.052 kg
PV Factor
N/A
N/mm² x m/s
1.8 N/mm² x m/s

⚠ Maximum PV Factor is 1.8! Reduce speed or load.

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