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 Stock150mm Swivel Castor, 520kg Capacity | Nylon Wheel, Plain Bore (661NY)
£35.65150mm Top Plate Swivel Castor (Pressed Steel) with... Read More 140x105mm Bolt Hole Centres. Nylon Wheel with Plain Bore. Load Capacity = 520kg- Out of Stock - On the Way
125mm Swivel Castor, 150kg Capacity | Nylon Wheel, Ball Bearing (1321108)
£10.52125mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Nylon Wheel with Ball Bearing. Load Capacity = 150kg - Out of Stock - On the Way
150mm Stainless Steel Swivel Castor, 200kg Capacity | Nylon Wheel, Plain Bore (MSS150NYBH)
£36.23150mm Bolt Hole Swivel Castor (Stainless Steel Cas... Read Moretor) with 12mm Bolt Hole. Nylon Wheel with Plain Bore. Load Capacity = 200kg - In Stock
150mm Stainless Steel Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSS150PNBBH)
£41.92150mm Bolt Hole Swivel Castor (Stainless Steel Cas... Read Moretor) with 12mm Bolt Hole. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 150kg - In Stock
125mm Swivel Castor, 150kg Capacity | Nylon Wheel, Roller Bearing (MSVH125NY1B)
£9.43125mm Single Bolt Hole (12mm) Swivel Castor (Press... Read Moreed Steel). Nylon Wheel with Roller Bearing. Load Capacity = 150kg - In Stock
80mm Swivel Castor, 130kg Capacity | Nylon Wheel, Roller Bearing (MSV080NY1B)
£7.8480mm White Nylon Wheel with a roller bearing fi... Read Moretted 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 Nylon Wheel has a low tractive resistance making it easier to get moving under load compared with softer rubber tread wheels but may produce more noise when in use. The strength of nylon and because it wont damage concrete floors, makes nylon wheel castors probably the most popular choice and 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
60mm Compact Twin Wheel Swivel Castor, 200kg Capacity | Polyurethane Tyre Wheel, Ball bearing (2KS060PT2B)
£23.4860mm Low Level twin wheel swivel castor with 105x8... Read More0mm Top Plate and 80/76x60mm Fixing Bolt Hole Centres. This Low Level compact castor has an overall height of 80mm and an Orange Polyurethane Wheel on a steel centre with a 2x19mmTread Width (41mm across both wheels) and Ball bearings. Load Capacity = 150kg.The swivel head has a double ball race for excellent swivelling and the polyurethane tyres have a 95 Shore A hardness. - 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
200mm Swivel Castor, 1400kg Capacity | Polyurethane Tyre Wheel, ball Bearing (2HKS20020241)
£251.38200mm Heavy Duty Top Plate Swivel Castor (Fabricat... Read Moreed Castor - Twin Wheel). The Top Plate measures 149x110mm with 105x80mm Fixing Hole Centres. A grease nipple is fitted to the swivel head to enable easy maintenance. The load capacity of this dual wheel castor is 1400kg.The Wheel has a Polyurethane Tyre (92 Shore A) on a Cast Iron Centre Wheel with Ball Bearings. The polyurethane tyre is abrasion resistant with a low rolling resistance. The elasticity of the polyurethane allows the wheel absorb some of the rolling vibrations. This provides the user with a smoother and quieter operation yet is gentler on concrete floors compared to hard treads such as Cast Iron. - In Stock
75mm Swivel Castor, 170kg Capacity | Nylon Wheel, Plain Bore (361NY)
£7.0975mm Top Plate Swivel Castor (Pressed Steel) with ... Read Morea top plate measuring 105x80mm with 8mm slotted fixing holes with 80/86mm x 60mm Bolt Hole centres. The castor houses a white Nylon Wheel with Plain Bore. Load Capacity = 170kg.The Nylon castor wheel is a hard tread made from quality nylon. It will not damage or mark concrete floors and is not susceptible to picking up floor debris and swarf. Nylon is a popular wheel choice because it is light weight and has a high load capacity relative to other wheel materials of the same size. It is not affected by water and is insensitive to many chemicals apart from acids. - In Stock
100mm Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel with Roller Bearing (1321786)
£12.96100mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Single Bolt Fixing Hole. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 150kg - Out of Stock - On the Way
125mm Swivel Castor, 150kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321118)
£16.10125mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Blue Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 150kg - In Stock
100mm Swivel Castor, 300kg Capacity | Cast Iron Wheel, Roller Bearing (KSMG100CIB)
£28.41100mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80mm Bolt Hole Centres. The wheel is a solid Cast Iron Wheel with a Needle Roller Bearing. Load Capacity = 300kg using manual propulsion at 4km/h (walking speed).Key Specifications and Features:- Top Plate Size: 140x110mm
- Bolt Hole Centres: Slotted 114x87mm / 97.5x71.5mm
- Fixing Bolt Size: 12mm
- Overall Height: 143mm
- Offset: 35mm
- Bearing Type: Roller Bearing
- Load Capacity: 300kg (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
200mm Swivel Castor, 1090kg Capacity | Cast Iron Wheel, Roller Bearing (855CIB)
£101.91200mm Top Plate Swivel Castor with 140x105mm Bolt ... Read MoreHole Centres each suiting an M10 fixing bolt. The heavy duty bracket has a swivel head with roller ball bearings and has a grease nipple. The pressed steel frame has a bright zinc finish. This castor houses a quality Flexello Cast Iron Wheel that has a Roller Bearing fitted into the central bore to reducing rolling resistance. The Load Capacity of this castor is 1090kg. - Out of Stock - On the Way
150mm Swivel Castor, 300kg Capacity | Rubber Tyre Wheel, Plain Bore (622RN)
£38.36150mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80 Hole Centres. Rubber Tyre / Nylon Centre Wheel with Plain Bore. Load Capacity = 300kg
