
Swivel Castors
Swivel castors provide 360-degree movement for trolleys, workbenches, transport platforms, machinery and material handling equipment. Keystone supplies a wide range of options, including top plate and bolt-hole fixings, bra...ked models, stainless steel designs and heavy-duty wheels for industrial, commercial and specialist applications.How Swivel Castors Work
The swivel head contains ball bearings that allow the castor to rotate smoothly. Swivel castors may use either a single ball race or a double ball race. Double ball race swivel castors are often used for medium duty and heavy duty applications because they provide good steerability, compact construction and reliable performance under static and moving loads.
Swivel Castor Fixing Types
The fixing determines how the castor attaches to your equipment. Common swivel castor fixing types include: Top plate fixing – usually square, rectangular or triangular and bolted directly to the equipment. Single bolt-hole fixing – fitted using a central bolt or stem connection. When choosing a plate-fixing swivel castor, check the plate size, bolt-hole diameter and fixing centres to make sure it matches your equipment.
Braked Swivel Castors
Swivel castors can be supplied with brake options to improve safety and control. Depending on the castor, the brake may lock the wheel, the swivel head or both. For options with integrated brakes, view our braked castors.
Swivel Castor Components
The diagram below shows the main parts of a swivel castor, including the fixing, swivel head, yoke and wheel. Swivel castor components diagram showing fixing, swivel head, yoke and wheel

Swivel Castor Offset
The swivel castor offset is the distance between the swivel axis and the centre of the wheel. This offset allows the castor to trail behind the swivel point and turn in the direction of movement. The offset and wheel diameter determine the swivel radius: Swivel radius = offset + wheel diameter ÷ 2 This measurement shows how much space the castor needs to rotate fully around the vertical axis. In general, a larger offset improves running performance and steering, but may reduce the castor’s load capacity.
Choosing the Right Swivel Castor
Use the filters on this page to compare swivel castors by wheel diameter, load capacity, fixing type, brake option, wheel material and bearing type. If you are unsure which castor is suitable for your application, contact Keystone for technical advice. Read More
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In Stock150mm Swivel Castor, 370kg Capacity | Rubber Tyre Wheel, Ball bearing (HKS15020341)
£85.66150mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Rubber Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 370kg -
In Stock150mm Swivel Castor, 600kg Capacity | Nylon Wheel, Ball bearing (HKS15020111)
£104.68150mm Top Plate Swivel Castor (Fabricated Steel Br ... Read Moreacket) with 105x80mm Bolt Hole Centres. Solid White Nylon Wheel with Ball bearing. Load Capacity = 600kg -
In Stock125mm Swivel Castor, 500kg Capacity | Cast Iron Wheel, Ball bearing (HKS12520441)
£71.64125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Cast Iron Wheel with Ball bearing. Load Capacity = 500kg -
In Stock125mm Swivel Castor, 225kg Capacity | Rubber Tyre Wheel, Ball bearing, (HKS12520341)
£90.51125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Elastic Rubber Tyre / Aluminium Centre Wheel with Ball bearing. Load Capacity = 225kg -
In Stock125mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball bearing (HKS12520111)
£75.09125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Nylon Wheel with Ball bearing. Load Capacity = 300kg -
In Stock300mm Swivel Castor, 1300kg Capacity | Polyurethane Tyre Wheel, Ball bearing (HKS30025241)
£220.32300mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 1300kg -
In Stock250mm Swivel Castor, 1150kg Capacity | Polyurethane Tyre Wheel, Ball bearing (HKS25025241)
£162.84250mm Top Plate Swivel Castor (Fabricated Steel) ... Read Morewith a Polyurethane Tyre on a Cast Iron Centre Wheel and Ball Bearings. Load Capacity = 1,150kg using manual propulsion at 4km/h. Key Specifications: Top Plate Dimensions: 149x110mm Fixing Bolt Hole Centres: 120x60mm (for 12mm Bolts) / 105x75/80mm (for 10mm Bolts) Fixing Bolt Hole Size: 13mm Overall Height: 303mm Castor Offset: 70mm Wheel Tread Hardness: 92 +/- 3 Shore A -
In Stock200mm Swivel Castor, 1000kg Capacity | Polyurethane Tyre Wheel, Ball bearing (HKS20020241)
£142.04200mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 1000kg -
In Stock150mm Swivel Castor, 700kg Capacity | Polyurethane Tyre Wheel, Ball bearing (HKS15020241)
£105.53150mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 700kg -
In Stock125mm Swivel Castor, 400kg Capacity | Polyurethane Tyre Wheel, Ball bearing, (HKS12520241)
£91.85125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80mm Bolt Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 400kg -
In Stock200mm Swivel Castor, 550kg Capacity | Nylon Wheel, Ball Bearing (KS200NYB550)
£53.11200mm Top Plate Swivel Castor (Industrial Castor) ... Read Morewith 105x80 Hole Centres. Nylon Wheel with Ball Bearing. Load Capacity = 550kg -
In Stock80mm Low Level Swivel Castor, 700kg Capacity | Nylon Wheel, Ball bearing (KS080NYBJ700)
Original price was: £41.40.£22.68Current price is: £22.68. Sale!80mm Low Level Swivel Castor fitted with an extra ... Read Moreheavy duty Cast Nylon Wheel running on Ball Bearings. The 4 hole Top Plate has 80x60mm Bolt Hole centres and the load capacity of this castor is 700kg using manual propulsion at 4km/h (walking speed) This castor is ideal for heavy duty applications where there is a height restriction and the White Nylon Wheel is non-marking and won't damage concrete floors. Key Specifications: Top Plate Size: 100x85mm Bolt Hole Centres: 80/75mm x60/45mm Overall Height: 120mm Wheel Material: Cast White Nylon Bearing Type: Ball Bearings Load Capacity: 700kg(~4km/h - walking speed) -
In Stock75mm Black Low Level High Load Swivel Castor, 540kg Capacity | Nylon Wheel, Roller Bearing (BMCS75E)
Original price was: £31.71.£21.56Current price is: £21.56. Sale!This High Load / Low Level Swivel Castor is made t ... Read Moreo take a heavy load with a low overall height of 104mm. It has a 4 hole top plate measuring 105x79.5mm with 85.4x60.35mm bolt hole centres and the swivel head is fitted with a grease nipple. To enable the castor to operate under heavy loads of up to 540kg each castor (1,620kg total load capacity with 4 castors fitted), the swivel head has a heavy duty double ball bearing race. The caster wheel is heavy duty nylon with a 46mm tread width and needle roller bearing to reduce the rolling resistance and is an ideal castor for heavy duty applications, such as business machines, where there is an height restriction. The black nylon castor wheel will not damage concrete floors. -
In Stock150mm AGV Swivel Castor, Twin Wheel, 630kg Capacity | Polyurethane Wheel, Ball bearing (GASD150ASFHUD)
Original price was: £288.63.£280.22Current price is: £280.22. Sale!This Twin wheel Automated Guided Vehicle (AGV) Cas ... Read Moretor with 150m diameter wheels has shock absorbing function and a bracket made from strong Forged steel that is zinc plated. There is double thrust bearing in the swivel head to achieve a high load capacity and maintain castor performance and durability. The role of the spring in an AGV castor is different to that of a standard shock absorbing castor. In a standard shock absorbing castor, the spring absorbs shock and noise whereas, it's role in a AGV castor is primarily to keep the wheels in contact with the floor. When determining the overall height requirement of a shock absorbing AVG, it should be designed based on the spring cushion being fully compressed. The shock absorbing pad made from a special rubber compound absorbs minor shocks and vibrations to protect the AGV unit. There is a 10mm range of compression which helps prevent the castors from losing contact with the floor which may be caused by small floor imperfections. An AGV's castor leaving the floor when changing directions is often the cause of the AGV becoming unbalanced and coming to a stop by straying off its designated path. The Top Plate is 145mm x 145mm and has 4 bolt holes that are spaced 120mm x 120mm, each with a 11mm hole diameter This castor frame has two wheels with a Polyurethane tyre (Shore A 95) on an Aluminium centre each containing ball bearings, Having a twin wheel castor is great for reducing the effort required to swivel the castor and most efficient by reducing the amount of room the castor needs to turn the AGV Cart. The polyurethane wheel has excellent elasticity the minimises slipping that can happen when an AGV starts or stops. In addition, the elasticity also absorbs small shocks arising from small imperfections in the floor. The wheel itself is non marking and will not damage the floor. -
In Stock125mm AGV Swivel Castor, Twin Wheel, 440kg Capacity | Polyurethane Wheel, Ball bearing (GASD125ASFHUD)
Original price was: £244.01.£236.90Current price is: £236.90. Sale!This Twin wheel Automated Guided Vehicle (AGV) Cas ... Read Moretor with 125m diameter wheels has a shock absorbing function and a bracket made from strong Forged steel that is zinc plated. There is double thrust bearing in the swivel head to achieve a high load capacity and maintain castor performance and durability. The role of the spring in an AGV castor is different to that of a standard shock absorbing castor. In a standard shock absorbing castor, the spring absorbs shock and noise whereas, it's role in a AGV castor is primarily to keep the wheels in contact with the floor. When determining the overall height requirement of a shock absorbing AVG, it should be designed based on the spring cushion being fully compressed. The shock absorbing pad made from a special rubber compound absorbs minor shocks and vibrations to protect the AGV unit. There is a 10mm range of compression which helps prevent the castors from losing contact with the floor which may be caused by small floor imperfections. An AGV's castor leaving the floor when changing directions is often the cause of the AGV becoming unbalanced and coming to a stop by straying off its designated path. The Top Plate is 145mm x 145mm and has 4 bolt holes that are spaced 120mm x 120mm, each with a 11mm hole diameter This castor frame has two wheels with a Polyurethane tyre (Shore A 95) on an Aluminium centre each containing ball bearings, Having a twin wheel castor is great for reducing the effort required to swivel the castor and most efficient by reducing the amount of room the castor needs to turn the AGV Cart. The polyurethane wheel has excellent elasticity the minimises slipping that can happen when an AGV starts or stops. In addition, the elasticity also absorbs small shocks arising from small imperfections in the floor. The wheel itself is non marking and will not damage the floor.
