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 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 Stock125mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball Bearing (MSK125NY2B)
£23.04125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 80x60mm Fixing Bolt Hole Centres and 157mm Overall Height. Nylon 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. The nylon wheel is insensitive to water and will not mark or damage most flooring. -
In Stock125mm Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (KS125PCB300)
£65.05125mm Top Plate Swivel Castor (Industrial Castor - ... Read More Pressed Steel Frame). This castor has a 4 hole top plate with 80x60mm Fixing Bolt Hole Centres and an overall height of 159mm. The wheel has an orange Polyurethane Tyre with a Cast Iron Centre and Ball Bearings. Load Capacity = 300kg -
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, 300kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK125PC2B)
£65.92125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 80x60mm Fixing Bolt Hole Centres. Polyurethane Tyre on a Cast Iron 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, 300kg Capacity | Polyurethane Tyre Wheel, Plain Bore (561PN)
£31.87125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 140x105 Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Plain Bore. Load Capacity = 300kg -
In Stock125mm Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (561PNB)
£37.34125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 140x105 Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 300kg -
In Stock125mm Swivel Castor, 325kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (561SUB)
£55.22125mm Top Plate Swivel Castor made from Pressed St ... Read Moreeel (Flexello Brand) and has a ball bearing swivel race. The Top Plate has four fixing holes to suit 10mm bolts and are slotted to 140/120mm x 105/95mm Bolt Hole Centres. The caster wheel has a Red Polyurethane Tyre on a Cast Iron Centre Wheel with with A 35mm Tread Width and a Needle Roller Bearing. Load Capacity = 325kg -
In Stock125mm Swivel Castor, 350kg Capacity | Cast Iron Wheel, Ball Bearing (KSMG125CIB)
£37.51125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80mm Fixing Bolt Hole Centres. Cast Iron 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) Cast iron castor wheels have a very hard tread making them the easiest of wheels to move (low tractive resistance). They have a very high load capacity, extremely wear resistant and not affected by swarf or aggressive materials. -
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 Stock125mm Swivel Castor, 360kg Capacity | Nylon Wheel, Plain Bore (561NY)
£26.29125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 140x105mm Bolt Hole Centres. This castor houses a white Nylon Wheel with a smooth Plain Bore and has a Load Capacity of 360kg using manual propulsion at 5km/h (walking speed) -
In Stock
125mm Swivel Castor, 360kg Capacity | Nylon Wheel, Roller Bearing (561NYB)
£31.77125mm Top Plate Swivel Castor (Pressed Steel) with ... Read More 140x105 Hole Centres. Nylon Wheel with Roller Bearing. Load Capacity = 360kg -
In Stock125mm Swivel Castor, 370kg Capacity | Polyurethane Tyre Wheel, Ball bearing (MSW125APCB)
£37.36125mm Top Plate Swivel Castor (Fabricated Steel). ... Read More105x80 bolt hole centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball Journal. Load Capacity = 370kg -
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 Stock125mm Swivel Castor, 400kg Capacity | Polyurethane Tyre Wheel, Ball Bearing, (KSMG125PCB)
£52.05125mm Top Plate Swivel Castor (Fabricated Steel) w ... Read Moreith 105x80mm Bolt Hole Centres. Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearings. Load Capacity = 400kg 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 Tread Hardness: 92 +/-3 Shore A Bearing Type: Ball Bearing Load Capacity: 400kg (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.
