Twin-wheel casters, wheel diameter 32 - 37 - 40 mm = furniture casters
Twin-wheel casters, wheel diameter 50 - 55 - 60 - 65 mm = office chair and furniture casters
Twin-wheel casters, wheel diameter 75 - 80 - 100 mm = furniture casters
We also supply single-wheel and roller casters, caster modules and caster cups as well as chair and furniture glides.
There are hard and soft wheels. Soft wheels have a contact surface of non-smearing, abrasion-resistant polyurethane.
The following general rule applies:
Please refer to our catalogue for the various types. Special spindles can be supplied to the customer's specifications.
The load capacity in kg is approximately the same as the wheel diameter in mm. Please refer to our catalogue for further details.
We recommend the following approximate calculation for furniture on 4 casters:
required load capacity per caster = (weight of furniture + guaranteed maximum loading) x 1/3
Our casters are available for a variety of recess diameters. This enables optimum matching to the office chair base. Casters are also available with universal adaptors for special applications.
Before an object on casters can start to move, three resistances have to be overcome by force. The resistances are depend on the following factors: weight, wheel diameter, load on the casters, material and shape of the contact surface and the type of the floor.
The x-value shown in our catalogue for each type of product has to be added to the y-value of the fixing used. The y-values can be found in the catalogue in tables at the end of the catalogue.
Besides plastics (PA6, TPU, etc.), we use zinc die-casting for certain designs, which can be chromium-plated or powder-coated in a variety of colours.
Casters which conduct electricity are capable of earthing electrostatic charges. Their electric resistance is R = 10^4 Ohm.
The following standards apply:
Both European standards define the technical requirements, suitable dimensions and requirements for testing.
We can also produce casters to custom-designed specifications.
In order to ensure a caster's long service life, the following recommendations should be followed: