The Load Rating for castors fitted to a trolley or equipment is a mulltiplier of the amount of Castors Fitted, Pattern of Fitment & Floor Condition.
Generally a Square or Rectangular pattern with 4 Castors fitted will provide a Multiplier of Load x 3 allowing for uneven surface conditions when 1 castor may be off the surface leaving 3 to safely carry the Load. A Multiplier of 4 may be calculated ONLY IF the Floor Conditions are Totally Flat and all 4 Castors are in contact with the floor.
A Triangular Arrangement of 3 Castors will provide a Multiplier of Load x 2.5
Arrangements of 6 Castors 2 Fixed Centrally & 4 on each corner along with a 4 Castor Diamond arrangement will give Load x 2 as the geometrical effect can allow only 2 castors to be in contact on eneven floor conditions.
SEE COMBINATION DIAGRAM FURTHER DOWN THIS PAGE
Wheels and Castors Guide
consist of different materials and are available with or without tread, tyre, cover, etc. The quality of the tread, the individual rims, the wheel centres and the different bearings are responsible for the diverse wheel characteristics. For this reason, wheels are characterised by different load capacities, rolling resistances and rolling qualities. The special characteristics of
the individual wheel series can be explained by our sales team.
Types of Wheels and Castors, Classified by Application