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 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
This Stainless Steel apparatus / institutional cas... Read Moretor comes with a 75mm Grey Thermoplastic Rubber Tyre Wheel on a polypropylene centre with a smooth plain bore. The swivel bracket has a 60x60mm 4 hole Top Plate with slotted fixing bolt holes at 48/39x48/39mm. The load capacity of this castor is 75kg using manual propulsion at 4km/hThe grey Thermoplastic Rubber Tyre Wheel will not mark or damage the floor and is ideal for most general castor purposes such as trolley castors or dolly castors.Download Series Data Sheet here
This Stainless Steel apparatus / institutional cas... Read Moretor comes with a 50mm Grey Thermoplastic Rubber Tyre Wheel on a polypropylene centre with a smooth plain bore. The swivel bracket has a 10mm Single Bolt Hole. The load capacity of this castor is 50kg using manual propulsion at 4km/hThe grey Thermoplastic Rubber Tyre Wheel will not mark or damage the floor and is ideal for most general castor purposes such as trolley castors or dolly castors.Download Series Data Sheet here
This Stainless Steel apparatus / institutional cas... Read Moretor comes with a 75mm Grey Thermoplastic Rubber Tyre Wheel on a polypropylene centre with a smooth plain bore. The swivel bracket has a 10mm Single Bolt Hole. The load capacity of this castor is 75kg using manual propulsion at 4km/hThe grey Thermoplastic Rubber Tyre Wheel will not mark or damage the floor and is ideal for most general castor purposes such as trolley castors or dolly castors.Download Series Data Sheet here
200mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Fixing Bolt Hole Centres. Blue Elastic Rubber Tyre on a Nylon Centre Wheel with ball bearings. Load Capacity = 350kgBlue elastic rubber tyres are gentle on floors and non-marking. They are a popular choice when a castor with a rubber tyre is needed but the weight to be carried is heavier than what a castor with a standard rubber tyre wheel can hold.
125mm Blue Elastic Rubber Tyre on a nylon centr... Read Moree wheel with a ball 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 200kg 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 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.</p>
125mm White Nylon Wheel with a ball bearing fit... Read Moreted 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 200kg using manual propulsion at 4km/h (walking speed)
The Nylon Wheel is a hard wheel giving it a low tractive resistance which makes it it easier to get moving compared with softer rubber tread wheels. The strength of nylon and because it wont damage concrete floors makes it one of the most popular choices. The ball 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.</p>
100mm Swivel Castor bracket (Pressed Steel) fitted... Read More with a Blue Elastic Rubber Tyre on a nylon centre wheel with a ball bearing. 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 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.This castor is often used on flight cases as well as in many medical, industrial and domestic applications.
100mm Red Polyurethane Tyre Wheel on a Nylon Centr... Read Moree with a ball 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 150kg 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. It is also a bit 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 ball 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.</p>
100mm White Nylon Wheel with a ball bearing fit... Read Moreted 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 150kg using manual propulsion at 4km/h (walking speed)
The Nylon Wheel is a hard wheel giving it a low tractive resistance which makes it it easier to get moving compared with softer rubber tread wheels. The strength of nylon and because it wont damage concrete floors makes it one of the most popular choices. The ball 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.</p>
80mm Blue Elastic Rubber Tyre wheel on a nylon cen... Read Moretre with a ball 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 Blue Elastic Rubber Tyre offers a higher load capacity than standard grey or black rubber tyres and is non-marking, gentle on floors. The rubber 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. Put this wheel into a strong bracket that has a double ball race in the swivel head makes this castors a truly great performer.</p>
This Twin wheel ... Read More75mm Automated Guided Vehicle (AGV) 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 10mm to 30mm which reduces the castors 'swing' enabling it to better follow the designated path.The Top Plate is 112mm x 112mm and has 4 bolt holes that are spaced 92mm x 92mm, each with a 9mm 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.
£510.48Original price was: £510.48.£197.30Current price is: £197.30.Sale!
Compare
This Twin wheel ... Read More100mm Automated Guided Vehicle (AGV) 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 10mm to 30mm which reduces the castors 'swing' enabling it to better follow the designated path.The Top Plate is 112mm x 112mm and has 4 bolt holes that are spaced 92mm x 92mm, each with a 9mm 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.
£569.41Original price was: £569.41.£220.07Current price is: £220.07.Sale!
Compare
This Twin wheel ... Read More125mm Automated Guided Vehicle (AGV) 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.
£766.17Original price was: £766.17.£296.11Current price is: £296.11.Sale!
Compare
We stock a complete range of swivel castors and their associate Fixed and Braked Castors (where available). Our ranges come with a wide variety of top plate sizes and fixing bolt hole centres.
The ranges include pressed steel, Stainless Steel and Fabricated or welded castor housings.
A castor’s size is usually referred to by the wheel’s diameter. The most common sizes are 40mm, 50mm, 75mm, 80mm, 100mm, 125mm, 150mm, 160mm, 200mm, 250mm and 300mm. These are the wheel sizes and because the swivel head sits above the caster wheel, the castor’s overall height will be somewhat larger than the wheel. We’ve had some customers purchase a 100mm Castor expecting it to be 100mm tall, it’s not, it’s usually around 128mm tall.
Each Swivel Castor can have a wide range of castor wheels. Nylon, Polypropylene, Rubber Tyre, Elastic Rubber Tyre, Polyurethane Tyres and Cast Iron Wheels are the most common.