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 Stock100mm Swivel Castor, 250kg Capacity | Nylon Wheel, Roller Bearing (422NYB)
£20.87This heavy-duty 100mm Flexello swivel castor is de... Read Moresigned for smooth, reliable movement under demanding conditions. With a strong pressed-steel frame and a high-load nylon wheel, it offers excellent durability for industrial and commercial use.Key Specifications:- Load Capacity: 250kg (manual propulsion up to 4km/h)
- Top Plate Size: 100mm
- Bolt Hole Centres: 80 × 60mm
- Overall Height: 128mm
- Wheel Material: White nylon – impact-resistant and low-maintenance
- Bearing Type: Roller bearing for smooth, effortless rolling
- In Stock
125mm Swivel Castor, 85kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321053)
£9.98125mm Top Plate Swivel Castor (Pressed Steel) w... Read Moreith 80x60 Hole Centres. Grey Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 85kg
This is a 4 hole plate fitting castor and the bolt holes suit an 8mm bolt as well as being slotted (rather than round) to accommodate 80/76mm x 60x44.5mm.
- In Stock
100mm LAG Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (23603)
£48.38100mm Top Plate Swivel Castor (LAG Pressed Steel) ... Read Morewith a Top Plate measuring 105x80mm and 80x60mm Fixing Bolt Hole Centres. This caster has an overall height of 137mm and an offset of 37mm. The wheel is a quality Polyurethane Tyre on Cast Iron Centre Wheel with a 30mm Tread Width and Ball Bearings. Load Capacity = 300kg - In Stock
80mm High Temperature Swivel Castor, 100kg Capacity | Phenolic Resin Wheel, Plain Bore (MSX080HTBH)
£19.6880mm 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
125mm Swivel Castor, 100kg Capacity | Grey Rubber Tyre Wheel with Plain Bore (BSRN12510021)
Original price was: £8.86.£3.98Current price is: £3.98.Sale!Swivel Castor (Flexello Brand) with a 125mm Grey R... Read Moreubber Tyre wheel on a Nylon Centre with Large Metal Thread Guard. It as a square top plate with 57x57mm fixing bolt hole centres and a Load Capacity of 100kg using manual propulsion at 4km/h.Key Specifications:- Top Plate Size: 76x76mm (Square Top Plate)
- Bolt Hole Centres: 57x57mm
- Bolt Hole Size: 8.5x15mm (slotted)
- Overall Height: 155mm
- Offset: 42mm
- Bearing Type: Smooth Plain Bore
- 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
75mm Pressed Steel Swivel Castor, 170kg Capacity | Nylon Wheel, Plain Bore (K075VNY)
Original price was: £9.46.£7.68Current price is: £7.68.Sale!75mm Swivel Castor with Triangular Mounting Plate ... Read Moreand 102x73mm Hole Centres housing a white nylon wheel with a smooth plain bore. This castor has an overall height of 95mm and a load capacity of 170kg.The top plate has two extra long slotted bolt holes to allow for easy positioning along a profile. It is often fitted to frame such as a T-Slot Aluminium Extrusion Profile to provide extra clearance. - In Stock
75mm Swivel Castor, 70kg Capacity | Polypropylene Wheel, Plain Bore (LSV075PP)
£3.4175mm white polypropylene Wheel fitted into a Top P... Read Morelate Swivel Castor with 55x42mm bolt hole centres. The load capacity of this castor is 50kg using manual propulsion at 4km/hThis popular general purpose castor is fitted with a hard white polypropylene wheel that won't damage concrete floors. The hard tread lowers rolling and swivelling resistance making this castor easier to push compared to softer treads. This castor is ideal for most domestic or industrial castor uses where a small yet sturdy swivel castor in needed. - Out of Stock - On the Way
75mm Black Low Level High Load Swivel Castor, 540kg Capacity | Nylon Wheel, Roller Bearing (BMCS75E)
Original price was: £30.79.£21.56Current price is: £21.56.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
35mm Compact Braked Castor, 100kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KS035PT2BBHBR)
£11.7835mm Low Level swivel with brake castor with 10mm ... Read MoreSingle Bolt Hole Fixing. This Low Level compact castor has an overall height of 50mm and an Orange Polyurethane Wheel on a steel centre with a 27mm Tread Width and Ball bearings. Load Capacity = 100kg - In Stock
150mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KSCR15020241)
£58.95150mm Swivel Castor (Pressed Steel) and Crown Trea... Read Mored Polyurethane Tyred / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 500kg - 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
150mm Swivel Castor, 1100kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (2HKS15020241)
£202.56150mm 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 1100kg.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
125mm Swivel Castor, 250kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSK125PN1B)
£16.30125mm 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
200mm Swivel Castor, 800kg Capacity, Nylon Wheel, Ball Bearing (KS200NYBJ800)
£81.48200mm Swivel Castor (Heavy Duty Pressed Steel) wit... Read Moreh a 135mm x 110mm Top Plate and 105x80mm Fixing Bolt Hole spacings. The castor wheel is a Solid White Nylon with two shielded ball bearings. Load Capacity = 800kg- The castor wheel is a heavy-duty polyamide 6 (usually referred to as nylon) wheel with shielded ball bearing and is not affected by water.
- Being a hard tread it offers the lowest rolling resistance and easiest mobility.
- This castor is a popular choice in a wide variety of heavy-duty applications and the Nylon wheel will not damage or mark concrete floors
- The castor wheel is a heavy-duty polyamide 6 (usually referred to as nylon) wheel with shielded ball bearing and is not affected by water.
