Swivel Castors
Swivel Castors and wheels can swivel 360 degrees about the vertical axis (see figure below). They consist of a housing and a caster wheel. The housing itself is made up of a plate fitting, swivel bearings and a yoke. The Yoke is often referred to as the castor's frame (see figure below).The plate fitting determines how the... castor is going to be attached to the equipment. It is usually either a single bolt hole fitting or a plate fixing which is generally square, rectangular or triangular. Plate fittings are usually bolted to equipment so knowing your required bolt hole centres is important. The Swivel Head consists of a ball race and a number of ball bearings that roll within it. Swivel Castors can either have a single ball race or a double ball race. They perform the same function. The double ball race was developed for medium and heavy applications. This is because they are compact, perform well under static and dynamic loads and provide excellent steerability.
Swivel castors can be fitting with locks which lock (brake) wither the wheel or the swivel head or both. See Brake Castors.
Swivel Castor Components
Swivel Castor Offset
The Swivel Castor's offset it the distance from the swivel axis to the centre of the wheel (where it is secured to the castor frame). It is the reason a swivel castor will go in the direction you want it to go regardless its starting direction. The offset and castor wheel's diameter make up the swivel radius where the swivel radius = Offset + (Wheel Diameter / 2).
This is the radius of circle described but the outer dimension of the wheel swivelling around the vertical axis. Basically, this is important because it tells you how much room is needed for the swivel caster to swivel. Furthermore, the general rule is the bigger the offset the better the castor's running performance but the lower the weight it can carry. Read More
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In Stock100mm Swivel Castor, 900kg Capacity | Nylon Wheel, Ball bearing (GXT100ASFMCD)
Original price was: £204.12.£128.20Current price is: £128.20.Sale!100mm Machine... Read More Cast Nylon Wheel fitted into an extra strong Fabricated Top Plate Swivel Castor with a double thrust bearing in the swivel head to optimise the load capacity. The fixing bolt spacings are the European Standard size of 80x60mm. The load capacity of this castor is 900kg at 4km/h
This high performance castor is fitted with a white machine cast nylon wheel that will not mark the floor. The extra strong welded castor frame is powder coated to protect the frame and top plate and it is fitted with a high performance castor wheel containing two ball bearings. The bearings turn on a specially designed integrated axle shaft arrangement making this castor one of the most durable in the market. Perfect for moving very heavy loads where strength, durability and performance are critical.
The double thrust bearing in the swivel head optimise heavy loads
- In Stock
150mm Swivel Castor, 725kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (655SUB)
Original price was: £145.52.£112.48Current price is: £112.48.Sale!150mm Top Plate Swivel Castor. The 4 hole top plat... Read Moree measures 162mm x 140mm with 140mm x 105mm Fixing Bolt Hole Centres. to suit a 10mm Fixing Bolt. The Wheel has a Polyurethane Tyre on Cast Iron Centre with a needle roller bearing. Load Capacity = 725kg.The 55 series castor is made from heavy duty pressed steel with a bright zinc finish and roller ball bearing in the swivel head. - In Stock
80mm High Temperature Swivel Castor, 100kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX080HT)
£17.2880mm Swivel Castor (Pressed Steel) with 80x60mm Bo... Read Morelt Hole Centres, 108mm Overall Height and High Temperature Black Phenolic Wheel with 35m Tread Width and Smooth Plain Bore. This castor is Rated to +280 degrees C. and has a Load Capacity of 100kg
