
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, 1020kg Capacity | Cast Iron Wheel, Roller Bearing (655CIB)
£111.13150mm Swivel Castor with a Cast Iron Wheel with Ro ... Read Moreller Bearing, 1020kg Load Capacity using manual propulsion at 4km/h (walking speed). Key Specifications: Top Plate Size: 162x140mm Bolt Hole Centres: 140x105mm Bolt Hole Size: 12.4mm (to suit 12mm fixing bolt) Overall Height: 197mm Castor Offset: 36mm Swivel Radius: 111mm Wheel Material: Cast Iron c/w Grease Nipple Bearing Type: Roller Bearing Load Rating: 1020kg (hand pushed to 4km/h - walking speed) Surface Finish: Bright zinc finish This is a heavy duty castor suitable for arduous applications. The swivel head contains a single race of roller ball bearings for durability and optimum manoeuvrability. -
In Stock100mm Swivel Castor, 160kg Capacity | Rubber Tyre Wheel, Roller Bearing (Flexello 461RNB)
£26.25100mm Top Plate Swivel Castor (Flexello 61 Series) ... Read More with 105x80mm Bolt Hole Centres. Blue Elastic Rubber Tyre on a Nylon Centre Wheel fitted with a Roller Bearing. Load Capacity = 160kg The Flexello 61 Series is an established industry standard range of Pressed Steel Castors that is suitable for most industrial castor uses. This range has a ball bearing swivel head and finished with a bright zinc plating and has a larger top plate than most 100mm castors with the castor's top plate measuring 128x102mm. The Blue Elastic Rubber offers a higher load capacity over standard grey or black rubber tyres and will not mark floors. The roller bearing consists of steel rollers in a plastic cage that minimise rolling resistance even under heavy loads. -
In Stock100mm Swivel Castor, 270kg Capacity | Nylon Wheel, Plain Bore (461NY)
£12.91100mm Top Plate Swivel Castor (Flexello 61 Series) ... Read More. The top plate measures 128x102mm and has 100/105x76/80mm Fixing Bolt Hole Centres (105X80mm). White Nylon Wheel with a 32mm Tread Width and a smooth Plain Bore. Load Capacity = 270kg The Flexello 61 Series is an established industry standard range of Pressed Steel Castors that is suitable for most industrial castor uses. This range has a ball bearing swivel head and finished with a bright zinc plating. This range has a larger top plate than most 100mm castors with the castor's top plate measuring 128x102mm. -
In Stock125mm Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK125PA2B)
£41.69125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 80x60mm Fixing Bolt Hole Centres. Polyurethane Tyre on an Aluminium Centre Wheel with Ball Bearings. Load Capacity = 300kg. This castor is made from heavy gauge pressed steel with a 5mm thick Top Plate and 4mm Castor Forks. It is a product that is built to last and is great for arduous applications. -
In Stock125mm Swivel Castor, 150kg Capacity | Nylon Wheel, Single Ball Bearing (MSVH125NY2B)
£12.91125mm Single Bolt Hole (12mm) Pressed Steel Swivel ... Read More Castor. This castor has a Nylon Wheel with a Single Ball Bearing. The Load Capacity is 150kg using manual propulsion at 4km/h. -
In Stock125mm AGV Swivel Castor, Twin Wheel, 440kg Load | Polyurethane Wheel, Ball bearing (GAAD125ASFHUD)
Original price was: £276.12.£268.07Current price is: £268.07. Sale!This Twin wheel 125mm Automated Guided Vehicle (AG ... Read MoreV) Castor has a bracket made from strong Forged steel that is zinc plated. There is a hardened Taper Roller Bearing in he swivel head, which has a grease nipple, for smooth swivelling action and durability. The castor is unique because it has a self-aligned function enabled by two swivelling axes each with different swivelling radii so that the castor's offset can automatically alter when changing direction to optimise the castor's turning circle for the AGV. Specifically, the offset can range from 15mm to 33mm which reduces the castors 'swing' enabling it to better follow the 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, 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 Stock160mm Swivel Castor, 200kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSVH160RN1B)
£23.93160mm Single Bolt Hole (12mm) Swivel Castor (Press ... Read Moreed Steel). Blue Rubber Tyred / Nylon Centre Wheel with Roller Bearing. Load Capacity = 200kg -
In Stock100mm Swivel Castor, 225kg Capacity | Nylon Wheel, Roller Bearing (TS4100NY14)
£23.02100mm Swivel Castor (REVVO Brand) with a White Nyl ... Read Moreon Wheel. The top plate measures 135mm x 110mm and the Fixing Bolt Hole Centres are 105x80mm. The castor wheel has a 35mm Tread Width with a Needle Roller Bearing and the Load Capacity is 225kg using manual propulsion at 4km/h (walking speed). The white nylon wheel is a hard tread which provides the lowest rolling resistance and maximum mobility. Being nylon the wheel is non-marking and will not damage concrete floors. -
In Stock200mm Swivel Castor, 300kg Capacity | Nylon Wheel, Roller Bearing (MSV200NY1B)
£25.99200mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 105x80mm Hole Centres and 235mm Overall height. The White Nylon Wheel has a 50mm Tread Width and a Roller Bearing. Load Capacity = 300kg using manual propulsion at 4km/h (walking speed). Key Specifications: Top Plate Dimensions: 135x110mm Fixing Bolt Hole Centres: 105x84/76mm Bolt Hole Size: 11mm (suits 10mm fixing bolts) Overall Height: 235mm Castor Offset: 55mm Swivel Radius: 155mm Brake Style: Swivel & Wheel Brake (Both the swivel action and wheel are locked when the brake is applied) Load Capacity: 300kg -
In Stock200mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK200PC2B)
£65.63200mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 105x80mm Fixing Bolt Hole Centres. Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearings. Load Capacity = 500kg. -
In Stock160mm Swivel Castor, 500kg Capacity | Nylon Wheel, Ball Bearing (MSK160NY2B)
£30.96160mm Swivel Castor (Pressed Steel - Top Plate) wi ... Read Moreth 105x80mm Fixing Bolt Hole Centres. This castor comes with a White Nylon Wheel with Ball Bearings. Load Capacity = 500kg using manual propulsion at 4km/h (walking speed) Key Specifications: Bolt Hole Centres: 105x80/74mm Bolt Hole Size: 11mm (suits 10mm Fixing Bolt) Castor Offset: 55mm Overall Height: 200mm This castor is made from 4mm thick heavy gauge pressed steel. It is a product that is built to last and is great for arduous applications. The white nylon castor wheel is a hard tread and contains Ball Bearings which ensures the lowest rolling resistance. Nylon is probably the most popular wheel used because it is relatively inexpensive, strong and long lasting. It is unaffected by water and resistant to most chemicals except acids and chlorines. -
In Stock125mm Swivel Castor, 350kg Capacity | Nylon Wheel, Ball Bearing (KSMG125NYB)
£36.20125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80mm Fixing Bolt Hole Centres. White Nylon Wheel with Ball Bearings. Load Capacity = 350kg Key Specifications and Features: Top Plate Size: 140x110mm Bolt Hole Centres: Slotted 114x87mm / 97.5x71.5mm Fixing Bolt Size: 12mm Overall Height: 165mm Offset: 39mm Bearing Type: Ball Bearing Load Capacity: 350kg (manual propulsion at 4km/h) Nylon castor wheels have a hard tread making them one of the easiest to move (Low tractive resistance). They have a high load capacity, are low maintenance and extremely resistant to water, salts, greases, acids and alkalis. -
In Stock200mm Shock Absorbing Swivel Castor, 450kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KGDSP200ASFMUD)
Original price was: £138.37.£73.89Current price is: £73.89. Sale!200mm Shock absorbing (15mm Compression) Swivel ca ... Read Morestor and Polyurethane Tyred Aluminium Wheel. Load Capacity = 450kgFor the compression performance, please see the image for the curve by clicking on the thumbnail image above. To use this curve, please calculate the weight being carried by this castor and divide that by the one less than the number of castors on your equipment, So if you have a trolley using 4 of these castors and the total weight being carried is 500kg, then the compression of the rubber pad is the reading given on the y axis at 167kg (500kg / 3 = 167kg) which is just over 10mm. -
Out of Stock - On the Way200mm Swivel Castor, 600kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (KSMG200PCB)
£67.74200mm Top Plate Swivel Castor (Fabricated Steel) ... Read Morewith 105x80mm Bolt Hole Centres. Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearings. Load Capacity = 600kg Key Specifications and Features: Top Plate Size: 140x110mm Bolt Hole Centres: Slotted 114x87mm / 97.5x71.5mm Fixing Bolt Size: 12.7x25mm Bolt Holes (Suits M12 Fixing Bolts) Overall Height: 240mm Offset: 56mm Tread Hardness: 92 +/-3 Shore A Bearing Type: Ball Bearing Load Capacity: 600kg (manual propulsion at 4km/h) Polyurethane tyre castor wheels offer high load capacity and exceptional wear resistance—lasting up to 10 times longer than rubber wheels under similar conditions. With a soft tread that’s softer than concrete, they won’t damage floors and operate with minimal noise. Resistant to oils, greases, petrol, and a wide range of chemicals, they’re ideal for demanding environments. -
In Stock150mm Swivel Castor, 300kg Capacity | Rubber Tyre Wheel, Ball Bearing (KSMG150EAB)
£39.84150mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith with 105x80mm Fixing Bolt Hole Centres. This castor is fitted with a Black Elastic Rubber Tyre on an Aluminium Centre Wheel with Ball Bearings. Load Capacity = 300kg using manual propulsion at 4km/h (walking speed). Key Specifications & Features Top Plate Size: 140x110mm Bolt Hole Centres: Slotted 114x87mm / 97.5x71.5mm Fixing Bolt Size: 12.7x25mm (Suits M12 Fixing Bolts) Overall Height: 190mm Offset: 40mm Bearing Type: Ball Bearing Load Capacity: 300kg (manual propulsion at 4km/h) Elastic rubber tyre castor wheels have a higher load capacity and lower rolling resistance (easier to get moving) than normal rubber tyre. They have a high resistance to wear and offer excellent running and operating comfort.
