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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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250mm Swivel Castor, 1500kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (KS250PCB1500A)
£223.18250mm Top Plate Swivel Castor (Industrial Castor) ... Read Morewith 160x120 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 1500kg - 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 - In Stock
75mm Footmaster Levelling Castor, Plate Fitting, 800kg Capacity | Nylon Wheel (KGD-100FBLACK)
£60.6275mm Foot Master Levelling Castor with an Black... Read More powder coating finish. This product has a 4-hole top plate with 70mm x 70mm bolt hole centres which is also powder coated for added protection. The wheel is made from premium quality black Nylon with a 30mm Tread width and the Die Cast Aluminium Foot Pad has a rubber vibration damping pad. This foot pad has a Nylon Hand-wheel operation
This product's load capacity has increased to 800kg Static Load and 400kg Dynamic Load.
Because of the lifting and lowering function of the Foot Master castor, like all Jacking Castors, it is important understand that each castor may be subjected to HALF THE TOTAL WEIGHT. Therefore, the recommended load capacity for each Foot Master Levelling Castor is half the castor's Static Load Capacity, that is, when the castors' levelling function is not being used. The load capacity of the Footmaster Castor when it is being moved and positioned is given by the Dynamic Load Capacity.
This levelling castor is a multi-functional swivel castor that provides mobility, levelling and anti-vibration functions. This allows users to move and position large equipment into place with added stability using the levelling and anti-vibration features.
- In Stock
80mm High Temperature Swivel Castor, 100kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX080HTBH)
£19.0180mm Single Bolt Hole Swivel Castor (Pressed Steel... Read More) with High Temperature Phenolic Wheel (Plain Bore) - Rated to +280 degrees C. Load capacity = 100kg - In Stock
160mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (KSMG160PAB)
£52.83160mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Polyurethane Tyre / Aluminium Centre Wheel with Ball Bearing. Load Capacity = 500kg - In Stock
100mm Swivel Castor, 150kg Capacity | Nylon Wheel, Roller Bearing (MSVH100NY1B)
£6.34100mm White Nylon Wheel with a roller bearing f... Read Moreitted into a pressed steel single bolt hole swivel castor bracket. The Swivel Bracket has a 12mm Single Bolt Hole top plate. The load capacity of this castor is 150kg using manual propulsion at 4km/h (walking speed)
The Nylon Wheel has a low tractive resistance making it easier to get moving compared with softer rubber tread wheels. Together with the strength of nylon and because it wont damage concrete floors, this makes nylon wheel castors probably the most popular choice. The roller bearing lowers the rolling resistance to reduce the effort required to move the castors. Put this wheel into a strong bracket that has a double ball race in the swivel head makes this castor a great choice for the widest range of industrial and domestic applications.
- In Stock
50mm Swivel Castor, 50kg Capacity | Rubber Tyre Wheel, Plain Bore (LSV050RPBH)
£2.2950mm Single Bolt Hole Swivel Castor with a non mar... Read Moreking Grey Rubber Tyre Wheel with a nylon centre. This castor has a 10mm Single Bolt Hole Swivel Castor and has a Pressed Steel frame. The load capacity is 50kg using manual propulsion at 4km/hThe a grey rubber tyre that will not mark the floor and is ideal for most general, light duty castor purposes such as trolley castors or dolly castors. 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
100mm Swivel Castor, 160kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSV100RN1B)
£10.51100mm Blue Elastic Rubber Tyre on a nylon centr... Read Moree wheel with a roller bearing fitted into a pressed steel swivel castor bracket. The Swivel Bracket has a 4 hole top plate with 80x60mm bolt hole spacing. The load capacity of this castor is 160kg using manual propulsion at 4km/h (walking speed)
The Blue Elastic Rubber Tyre offers a higher load capacity than standard grey or black rubber tyres and is non-marking, gentle on floors and the rubber absorbs vibrations whilst in motion making this a low noise option. The roller 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.
- In Stock
150mm Swivel Castor, 520kg Capacity | Nylon Wheel, Plain Bore (661NY)
£33.27150mm Top Plate Swivel Castor (Pressed Steel) with... Read More 140x105mm Bolt Hole Centres. Nylon Wheel with Plain Bore. Load Capacity = 520kg - In Stock
200mm Swivel Castor, 1500kg Capacity | Nylon Wheel, Ball Bearing (TSH200NY2H)
£139.54200mm Heavy Duty Top Plate Swivel Castor (Fabri... Read Morecated Castor) with 105x80 Hole Centres. Nylon Wheel with Ball Bearing. Load Capacity = 1500kg
Features of the H Series Castor
- The Genuine Revvo H Series castor is made from heavy gauge forged steel with a hardened ball race in the swivel race that serve as both thrust and radial bearings.
- The swivel head comes with a metal swivel seal and hydraulic grease nipple
- The closed base of the swivel ring prevents downward escape of lubricant
- The side plates are press formed to a cylindrical shape to give the best strength to weight ratio
- A four way direction lock can be purchased and fitted to the castor 9999-0181
- In Stock
125mm Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK125PC2B)
£61.83125mm 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 Stock
200mm Swivel Castor, 2000kg Capacity | Polyurethane Tyre Wheel, Ball bearing (GXT200ASFHUD)
Original price was: £509.91.£331.45Current price is: £331.45. Sale!200mm Polyuretha... Read Morene tyre Wheel with an aluminium centre fitted into an extra strong Fabricated Top Plate Swivel Castor with 148/132x111/99mm bolt hole centres. The slotted bolt holes cover the European and UK standard 140x105mm bolt holes. The load capacity of this castor is 2000kg at 4km/hThis high performance castor is fitted with a quality polyurethane tyre wheel that will not mark the floor. An extra strong welded castor frame that is powder coated and fitted with a high performance castor wheel containing two ball bearings that turns on a specially designed integrated axle shaft arrangement makes this castor one of the most durable in the market. Perfect for moving very heavy loads where strength, durability and performance are criticalThe swivel head of the 125mm - 250mm sizes of the GXT range come with a thrust bearing and a taper roller bearing in the swivel head. - In Stock
150mm Swivel Castor, 500kg Capacity | Nylon Wheel, Ball Bearing (KSMG150NYB)
£36.31150mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80mm Fixing Bolt Hole Centres to suit a 10mm Bolt. Nylon Wheel with Ball Bearings. Load Capacity = 500kg - 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
80mm Swivel Castor, 130kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSV080PN1B)
£7.7080mm Red Polyurethane Tyre on a Nylon Centre Wh... Read Moreeel with a roller bearing fitted into a pressed steel swivel castor bracket. The Swivel Bracket has a 4 hole top plate with 80x60mm bolt hole spacing. The load capacity of this castor is 130kg using manual propulsion at 4km/h (walking speed)
The Polyurethane tyre offers a low tractive resistance making it easier to get moving compared with softer rubber tread wheels. However, Polyurethane tyres are slightly softer than hard tread wheels making the castor smoother and quieter running. The polyurethane tyre is also non-marking and gentle on floors while the roller bearing lowers the rolling resistance to reduce the effort required to move the castors. 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.