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 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 Stock125mm Swivel Castor, 350kg Capacity | Cast Iron Wheel, Ball Bearing (KSMG125CIB)
£36.41125mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80mm Fixing Bolt Hole Centres. Cast Iron Wheel with Ball Bearings. Load Capacity = 350kgKey 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 Stock
150mm Swivel Castor, 730kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (TSH150PT15)
£117.26150mm Heavy Duty Top Plate Swivel Castor (Fabricat... Read Moreed Castor) with 105x80mm bolt hole centres and 202mm overall height. The wheel has a Revvothane Polyurethane Tyre on a Cast Iron Centre with a Roller Bearing. Load Capacity = 730kgThe Bolt Holes of the H series castor are slotted to 120x60mm and 105x80/75mm.- Use 12mm diameter bolts when fitting at 120 x 60mm
- Use 10mm diameter bolts when fitting at 105x80/75mm
- 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
150mm Swivel Castor with Brake, 700kg Capacity | Polyurethane Tyre Wheel, Ball bearing (HBT150PC2B)
£116.48150mm Top Plate Swivel Castor with Total Stop Brak... Read Moree (Locking both the swivel head and the wheel). This fabricated castor is coated in Black paint and the top plate has 120x60mm or 105x80mm Slotted Hole Centres. The wheel has a Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearings and the load capacity is 700kg at 4km/h (walking speed) using manual propulsion - In Stock
125mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball Bearing (MSK125NY2B)
£22.36125mm 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 Stock
200mm Swivel Castor, 350kg Capacity | Rubber Tyre Wheel, Ball Bearing (MSV200RN2B)
£36.57200mm 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. - Out of Stock - On the Way
125mm Swivel Castor, 85kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321104)
£14.71125mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Grey Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 85kg - In Stock
125mm AGV Swivel Castor, Twin Wheel, 440kg Capacity | Polyurethane Wheel, Ball bearing (GASD125ASFHUD)
Original price was: £700.30.£270.65Current price is: £270.65.Sale!This Twin wheel ... Read MoreAutomated Guided Vehicle (AGV) Castor with 125m diameter wheels has a shock absorbing function and a bracket made from strong Forged steel that is zinc plated. There is double thrust bearing in the swivel head to achieve a high load capacity and maintain castor performance and durability.The role of the spring in an AGV castor is different to that of a standard shock absorbing castor. In a standard shock absorbing castor, the spring absorbs shock and noise whereas, it's role in a AGV castor is primarily to keep the wheels in contact with the floor.When determining the overall height requirement of a shock absorbing AVG, it should be designed based on the spring cushion being fully compressed.The shock absorbing pad made from a special rubber compound absorbs minor shocks and vibrations to protect the AGV unit. There is a 10mm range of compression which helps prevent the castors from losing contact with the floor which may be caused by small floor imperfections. An AGV's castor leaving the floor when changing directions is often the cause of the AGV becoming unbalanced and coming to a stop by straying off its 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 diameterThis castor frame has two wheels with a Polyurethane tyre (Shore A 95) on an Aluminium centre each containing ball bearings, Having a twin wheel castor is great for reducing the effort required to swivel the castor and most efficient by reducing the amount of room the castor needs to turn the AGV Cart.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 Stock
160mm Swivel Castor, 300kg Capacity | Rubber Tyre Wheel, Ball Bearing (MSK160RN2B)
£37.26160mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Fixing Bolt Hole Centres. Blue Elastic Rubber Tyre on a Black Nylon Centre Wheel with Ball Bearings. Load Capacity = 300kg.Blue 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. - In Stock
160mm Swivel Castor, 135kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSV160BRP1B)
£16.16160mm Top Plate Swivel Castor. The castor wheel ha... Read Mores a Black Rubber Tyre on a Black Polypropylene (Plastic) Centre Wheel with Roller Bearing. The Load Capacity is 135kg using manual propulsion at 4km/h.Key Specifications:- Plate Size: 135X110mm
- Bolt Hole Centres: 105x80/75mm
- Bolt Hole Size: 11mm (suits 10mm fixing bolts)
- Overall height: 196mm
- Offset: 55mm
- Swivel Radius: 135mm
- Bearing Type: Roller Bearing
- Out of Stock - On the Way
50mm Footmaster Castor with Levelling Foot, 150kg Capacity | Nylon Wheel, Plain Bore (KGDH50ASFNYN)
Original price was: £35.45.£27.35Current price is: £27.35.Sale!This 50mm Swivel Castor has Black Nylon wheel (pla... Read Morein bore) with an extra long adjustable foot (GDH-50-ASF-NYN). The aluminium castor frame has a durable ivory coloured powder coating for protection against wear and tear.The Threaded section of the Adjustable Foot extends a maximum of 56mm above the top of the top plate (64mm including the hex head). The Hex Head can be operated by a drill for quick operation.The overall height of the castor is 73mm and the adjustable foot can extend by up to 35mm to enable precise levelling.The load capacity of this product is 150kg and the recommended maximum total load over 4 castors is 450kg. - In Stock
200mm Swivel Castor, 600kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (KSMG200PCB)
£88.41200mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 600kg - Out of Stock - On the Way
300mm Swivel Castor, 680kg Capacity | Rubber Tyre Wheel, Ball bearing (HKS30025341)
£165.39300mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Rubber Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 680kg - In Stock
63mm Swivel Castor, 122kg Capacity | 63mm Nylon Wheel, Plain Bore (261NY)
£6.2163mm Top Plate Swivel Castor (Pressed Steel) with ... Read More76x44.5mm Bolt Hole Centres and 81mm Overall Height. White Nylon caster wheel with 22mm Tread Width and Smooth Plain Bore. Load Capacity = 122kg - In Stock
75mm Stainless Steel Swivel Castor (BH), 75kg Capacity | Thermoplastic Rubber Wheel, Plain Bore (SKABS075TPR)
£9.34This 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 - In Stock
150mm Swivel Castor, 520kg Capacity | Nylon Wheel, Roller Bearing (661NYB)
£43.20150mm Flexello Top Plate Swivel Castor (Pressed St... Read Moreeel) with 140x105 Hole Centres. Nylon Wheel with Roller Bearing. Load Capacity = 520kg
