Bowman Bearing Selector

The Bowman Bearing Selector

The Bowman Bearing Selector has been developed to assist you in selecting the correct bearing for your project. This bearing selector reduces the uncertainty when selecting bushes and you can rest assured that whether you are in the design process or replacing a bearing in an existing application that you have selected the right one. The Bowman Bearing Selector will search our entire product range and select the bearing that corresponds to a set of parameters that you enter into it.

If you already know which bearing you need, you can use the bearing selector to review the technical information on that particular bearing. The bearing selector will show you the tolerances, load ratings, maximum speed, material information and much more.

How to use the Bowman Bearing Selector

  1. Enter your application parameters
  2. Click on one of the suggested bearings that meets your criteria to view the datasheet
  3. Give us a call on 01235 462500 or email us on to receive your order within 24 hours!

Step One – Find a bearing

Select Product



Speed and Load


Step Two – Selected Bearing

Flanged Bearing

Thermoplastic Bushes

Metric Thermoplastic Bushes Flanged Bearing

Part number: WMGF 18 20 09


Inner Diameter 18
Outer Diameter 20
Length 9
Flange Thickness 1
Flange Diameter 26

Material Specification

Structure PA66 nylon with fibres and PTFE
PV – Dry (N/mm² x m/s) 0.4 max
Static load (N/mm²) 80 max
Sliding speed (m/s) 1.0 max
Intermittent temperature (°C) -70 to 200
Operating temperature (°C) -40 to 150
Thermal Conductivity (W/mk) 0.2
Coefficient of friction – Dry 0.08 to 0.2
Hardness (rockwell) (HRR) 107 min
Hardness (Shore D) 80 min
Tensile strength (N/mm²) 60 min
Density (g/cm³) 1.46
Compressive strength (N/mm²) 100 min
E-module (N/mm²) 1500 min
Static pressure of surface at 20 degrees (N/mm²) 100 min

Tolerances & Fittings (Metric)

Min Max Tolerance
Flange Thickness Tolerance 0.860 1.000
Flange Diameter Tolerance 25.605 25.935 d13
Recommended Housing Size 20.000 20.021 H7
Inside Diameter When Fitted 18.032 18.102 E10
Inside Chamfers 0.100 0.500
Outside Chamfers 0.200 1.000

PV Calculation

Values Maximum
rpm 5305.165 rpm
kg 825.688 kg
PV Factor N/mm² x m/s 1.8 N/mm² x m/s

Found what you are looking for?

Call us +44 (01235) 462500 or Contact us ›

Looking for something specific? Call us +44 (0) 1235 462500 or

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