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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
160mm Swivel Castor, 135kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSV160BRP1B)
£15.61160mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Bolt Hole Centres. Black Rubber Tyre / Plastic Centre Wheel with Roller Bearing. Load Capacity = 135kg - In Stock
125mm Swivel Castor, 250kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSK125PN1B)
£15.74125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60mm Hole Centres and 157mm Overall Height. Polyurethane Tyre caster wheel with a nylon Centre Wheel and 34mm Tread Width with Roller Bearing. Load Capacity = 250kg.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 Stock
100mm Swivel Castor, 160kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSK100RN1B)
£15.79100mm Top Plate Swivel Castor (Heavy Gauge Pressed... Read More Steel) with 80x60 Hole Centres. Rubber Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 160kg - In Stock
125mm Swivel Castor, 170kg Capacity | Rubber Tyre Wheel, Roller Bearing (KS125UERBLACK)
£15.88125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80X60mm Hole Centres.Black Rubber Tyre / Nylon Centre Wheel with Plain Bore. Load Capacity = 170kg - In Stock
125mm Swivel Castor, 150kg Capacity | Rubber Tyre Wheel, Single Ball Bearing (MSVH125RN2B)
£15.95125mm Single Bolt Hole (12mm) Pressed Steel Swivel... Read More Castor. This castor has an Elastic Blue Rubber Tyred Wheel on a Nylon Centred Wheel with a Single Ball Bearing. The Load Capacity is 150kg using manual propulsion at 4km/h. - In Stock
50mm Compact Swivel Brake Castor, 150kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KS050PT2BBHBR)
£16.3650mm Low Level swivel with brake castor and 12mm S... Read Moreingle Bolt 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
125mm Black Swivel Castor, 220kg Capacity | Rubber Tyre Wheel, Ball Bearing (MSV125BRN2B)
£16.61125mm All Black Swivel Castor with Black Elastic R... Read Moreubber Tyre on a nylon centre wheel with a single ball bearing. This castor is designed for theatre applications to reduce reflection from lighting. It can also be used in any application where a pressed steel castor is required.The Swivel Brake Bracket has a 4 hole top plate with 80/77x60mm bolt hole spacing. The load capacity of this castor is 220kg using manual propulsion at 4km/h (walking speed)The Black Elastic Rubber Tyre offers a higher load capacity than standard grey or black rubber tyres and is quiet and gentle on floors. The soft tread rubber (65 Shore A) absorbs vibrations whilst in motion making this a low noise option. The ball bearing lowers the rolling resistance to reduce the effort required to move the castors. Together with the strong bracket that has a double ball race in the swivel head makes this castors a great performer and one of our most popular products.DOWNLOAD CATALOGUE PAGE HERE - In Stock
80mm High Temperature Swivel Castor, 100kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX080HT)
£16.6980mm 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 - In Stock
75mm Black Low Level High Load Swivel Castor, 540kg Capacity | Nylon Wheel, Roller Bearing (BMCS75E)
Original price was: £26.89.£16.72Current price is: £16.72. 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 Stock
80mm Stainless Steel Swivel Castor, 150kg Capacity | Nylon Wheel, Plain Bore (MSS080NYBH)
£16.8780mm Bolt Hole Swivel Castor (Stainless Steel Cast... Read Moreor) with 12mm Bolt Hole. Nylon Wheel with Plain Bore. Load Capacity = 150kg - In Stock
100mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball bearing (MSK100NY2B)
£17.00100mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60 Hole Centres. Nylon Wheel with Ball bearing. Load Capacity = 300kg - In Stock
160mm Swivel Castor, 200kg Capacity | Nylon Wheel, Roller Bearing (MSVH160NY1B)
£17.09160mm Single Bolt Hole (12mm) Swivel Castor (Press... Read Moreed Steel) and Nylon Wheel with Roller Bearing. Load Capacity = 200kg - In Stock
100mm Stainless Steel Swivel Castor, 150kg Capacity | Nylon Wheel, Plain Bore (MSS100NY)
£17.11100mm Top Plate Swivel Castor (Stainless Steel Cas... Read Moretor) with 80x60mm Bolt Hole Centres and 128mm overall height. White nylon caster wheel with 30mm Tread Width and Smooth Plain Bore. Load Capacity = 150kg - In Stock
100mm High Temperature Swivel Castor, 120kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX100HT)
£17.38100mm Swivel Castor (Pressed Steel) with 80x60mm B... Read Moreolt Hole centres and 128mm Overall Height. This castor houses a High Temperature Black Phenolic Wheel with a 35mm Tread Width and Smooth Plain Bore. It is Rated to +280 degrees C and has a Load Capacity = 120kg - In Stock
100mm High Temperature Swivel Castor, 125kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX100HTBH)
£17.69100mm Single Bolt Hole Swivel Castor (Pressed Stee... Read Morel) with High Temperature Phenolic Wheel (Plain Bore) - Rated to +280 degrees C. Load capacity = 125kg