Basic information / definitions

Wheel

Swivel castor

Fixed castor

Press-on band / tyre

Designations:
1 = tread / tyre
2 = wheel centre / rim
3 = hub
4 = wheel bearing

Dimensions:
D = wheel diameter
d = bore diameter
T1 = hub length
T2 = wheel width

Designations:
1-3 = swivel bracket
1 = top plate
2 = swivel head (swivel bearing)
3 = swivel fork
4 = wheel
5 = wheel axle

Dimensions:
H = total height / mounting height
F = offset
A,B = plate dimensions
a,b = bolt hole spacing
d = bolt hole diameter

Designations:
1 = fixed bracket
2 = wheel
3 = wheel axle

Dimensions:
H = total height / mounting height
A,B = plate dimensions
a,b = bolt hole spacing
d = bolt hole diameter

Designations:
1 = tread / tyre
2 = steel-band

Dimensions:
D = outer diameter
d = internal diameter
T2 = width

Wheels are made up of a tread / tyre, wheel centre / rim and a wheel bearing.

Wheels vary in terms of their load capacity, rolling resistance and rolling quality. The special properties of each individual wheel series are explained in detail in the relevant section.

Swivel castors can be rotated around the vertical axis, improving the manouevrability of machinery, equipment, etc. A swivel head (swivel bearing) connects the fork (swivel fork) to the fitting.
There is normally some horizontal distance between the centre of the swivel bearing and the wheel axle (offset), so the fork can swivel freely. This offset allows the castor to rotate easily without additional equipment. It also gives the castor a stable rolling characteristic when travelling straight. Swivel castors can be fitted with different locks to brake

• the rotation of the wheel (wheel brake)
• the rotation of the wheel and the swivel motion of the fork (wheel and swivel head brake)
• the swivel motion of the fork (directional lock)

Fixed castors do not swivel and make it easier to move machinery, equipment, etc. in a particular direction without deviating.

Press-on bands / tyres consist of various elastomers and are fitted with a steel band or steel insert.

Press-on bands / tyres vary in terms of their load capacity, rolling resistance and rolling quality. The special properties of each individual press-on band / tyre are explained in detail in the “Press-on bands / tyres” section.