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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 Components Diagram](https://www.keystonecastors.co.uk/wp-content/uploads/2023/09/Swivel-Castor-Components-Drawing-293x300.jpg)
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 Stock
50mm Low Level Swivel Castor, 160kg Capacity | Polyurethane Tyre Wheel, Plain Bore (MSTW050PT)
£13.9750mm Low Level Twin Wheel Swivel Castor (Keystone)... Read More with a round top plate. The Polyurethane tyre wheels have a tread width of 14mm each and turn on a smooth Plain Bore. The Load Capacity of 160kg.This castors offers an exceptional load capacity in relation to their low overall working height and is ideal for heavy equipment being used on smooth, hard flooring. The differential action from the twin wheels makes for smooth operation.The round top plate with a diameter of 95mm and 4 fixing holes to suit a 6mm bolt. Each fixing hole is spaced 51mm from the directly opposite fixing hole (the largest distance between the fixing holes) - In Stock
50mm Compact Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KS050PT2BBH)
£14.0950mm Low Level swivel castor with 12mm Single Bolt... Read More Hole Fixing. This Low Level compact castor has an overall height of 70mm and an Orange Polyurethane Wheel on a steel centre with a 33mm Tread Width and Ball bearings. Load Capacity = 150kg - In Stock
80mm Stainless Steel Swivel Castor, 150kg Capacity | Nylon Wheel, Plain Bore (MSS080NY)
£14.1580mm Top Plate Swivel Castor (Stainless Steel Cast... Read Moreor) with 80x60mm Bolt Hole Centres. Nylon castor wheel with Plain Bore. Load Capacity = 150kg - In Stock
125mm Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel, Single Ball Bearing (MSVH125PN2B)
£14.20125mm Single Bolt Hole (12mm) Pressed Steel Swivel... Read More Castor. This castor has a Polyurethane Tyred Wheel on a Nylon Centred Wheel with a single Ball Bearing. The Load Capacity is 150kg using manual propulsion at 4km/h. - Out of Stock - On the Way
125mm Swivel Castor, 85kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321104)
£14.21125mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Grey Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 85kg - In Stock
160mm Swivel Castor, 200kg Capacity | Polypropylene Wheel, Plain Bore (LSV160PP)
£14.30160mm Top Plate swivel Castor with a White Polypro... Read Morepylene wheel. It has 105x80mm fixing bolt hole centres and the load capacity is 200kg using manual propulsion at 4km/h.This is one of our most popular castors and the White Polypropylene wheel is non-marking and won’t damage concrete floors. Because it is a hard tread it has the lowest rolling and swivelling resistance. It is ideal as a new component or a replacement caster for most general purpose domestic or industrial castor where the travel speed of the castor generally does not exceed walking speed. - In Stock
125mm Swivel Castor, 130kg Capacity | Polyurethane Tyre Wheel, Plain Bore (KS125APNBH)
£14.46125mm Single Bolt Hole (12mm) Swivel Castor wit... Read Moreh Red Polyurethane Tyre on a White Nylon Centred Wheel and Plain Bore. The Load Capacity of this castor is 130kg using manual propulsion at 4 km/h.
The Polyurethane tyre offers a low tractive resistance making it easier to get moving compared with softer rubber tread wheels. It is also a bit softer than hard tread wheels making the castor smoother and quieter running. Polyurethane is non-marking and gentle on floors. Put this wheel into a strong bracket that has a double ball race in the swivel head and you have a castor that is a great choice for the wide range of industrial and domestic applications.
- In Stock
100mm Swivel Castor, 200kg Capacity | Wheel, Roller Bearing (LSV100RNB200)
£14.65100mm Elastic... Read More Blue Rubber Tyre Wheel on a black nylon centre fitted into a Top Plate Swivel Castor with 80x60mm bolt hole centres. The load capacity of this castor is 200kg using manual propulsion at 4km/h
This popular general purpose castor is fitted with an elastic blue rubber tyre that provides a higher load capacity than a standard grey or black rubber tyred wheel. The wheel is fitted with a roller bearing that offers low rolling resistance and rubber tyre is gentle on floors. This castor is ideal for most general purpose domestic or industrial castor where the travel speed of the castor is low and generally should not exceed 4km/h (walking speed).
- In Stock
150mm Swivel Castor, 100kg Capacity | Rubber Tyre Wheel, Ball Bearing (KAHS150TPR)
£14.77This apparatu... Read Mores / institutional castor comes with a 150mm Grey Thermoplastic Rubber Tyre Wheel on a nylon centre fitted into a 10mm Single Bolt Hole Swivel Castor (Pressed Steel Frame) with a double ball race swivel head. The load capacity of this castor is 100kg using manual propulsion at 4km/h
This castor is fitted with a grey rubber tyre that will not mark or damage the floor and is ideal for most general, light duty castor purposes such as trolley castors or dolly castors. The Ball Bearing in the wheel provides excellent rolling performance.
Single Bolt Hole castors can have a expander tube fitting (purchased separately) attached to insert into hollow square or round tubing. See our section on Expander Tube Fittings
- In Stock
125mm Swivel Castor, 200kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSV125PN1B)
£14.79125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60 Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 200kg - In Stock
50mm Compact Swivel Castor, 150kg Capacity | 50mm Polyurethane Tyre Wheel, Ball bearing (KS050PT2B)
£15.1250mm Low Level swivel castor with 90x66mm Top Plat... Read Moree and 75/61x51/45mm Fixing Bolt Hole Centres. This Low Level compact castor has an overall height of 73mm and an Orange Polyurethane Wheel on a steel centre with a 33mm Tread Width and Ball bearings. Load Capacity = 150kg - In Stock
75mm Swivel Castor, 90kg Capacity | Rubber Tyre Wheel, Plain Bore (361RNST)
£15.1775mm Stem Fitting Swivel Castor (Flexello 61 Se... Read Moreries) with M12x25mm Threaded Stem. Blue Rubber Tyre Wheel with a Nylon Centre and Plain Bore. The Load Capacity of this castor is 90kg at 4km/h using manual propuslion.
The Flexello 61 Series is an established industry standard range of Pressed Steel Castors that is suitable for most industrial or domestic applications. This range has a ball bearing swivel head and finished with a bright zinc plating.
- In Stock
50mm Low Level Swivel Castor, 160kg Capacity | Nylon Wheel, Plain Bore (2SL050NY0L)
Original price was: £15.75.£15.29Current price is: £15.29. Sale!50mm Low Level Twin Wheel Swivel Castor (REVVO Bra... Read Morend) with round top plate. The Nylon Wheels have a tread width of 14mm each and turn on a smooth Plain Bore. The Load Capacity of this castor is 160kg.This castors offers an exceptional load capacity in relation to their low overall working height and is ideal for heavy equipment being used on smooth, hard flooring. The differential action from the twin wheels makes for smooth operation.This castor has a round top plate with a diameter of 95mm and 4 fixing holes to suit a 6mm bolt. Each fixing hole is spaced 51mm from the directly opposite fixing hole (the largest distance between the fixing holes) - In Stock
160mm Swivel Castor, 135kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSV160GRP1B)
£15.41160mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Bolt Hole Centres. Grey Non-Marking Rubber Tyre / Plastic Centre Wheel with Roller Bearing. Load Capacity = 135kg - Out of Stock - On the Way
125mm Swivel Castor, 150kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321118)
£15.55125mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Blue Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 150kg