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 | Polyurethane Tyre Wheel, Roller Bearing (422SUB)
£43.60100mm Top Plate Swivel Castor (Flexello - Pressed ... Read MoreSteel) with 80x60mm Fixing Bolt Hole Centres. Red Polyurethane Tyre on a Red Painted Cast Iron Centre Wheel with Roller Bearing. Load Capacity = 250kg.- In Stock
100mm Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (1321726)
£14.25100mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60 Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 150kg.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. - Out of Stock - On the Way
41mm Swivel Castor, 20kg Capacity | 41mm Rubber Tyre Wheel, Plain Bore (KLME5814)
Original price was: £1.12.£1.05Current price is: £1.05.Sale!41mm Grey Polypr... Read Moreopylene (plastic) Wheel fitted into a Top Plate Swivel Castor with 38x38mm bolt hole centres. The load capacity of this castor is 20kg using manual propulsion at 4km/hThis popular general, light duty purpose castor will not mark or damage the floor and is ideal for most domestic and industrial castor uses where a small yet sturdy castor in needed. - In Stock
200mm Swivel Castor, 800kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KS200APCB800BR)
£105.67200mm Top Plate Swivel Castor with Total Stop Brak... Read Moree (Heavy Gauge Pressed Steel Bracket) with 105x80mm Bolt Hole Centres. Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 800kg - In Stock
150mm Swivel Castor, 1020kg Capacity | Cast Iron Wheel, Plain Bore (655CI)
£82.79150mm Top Plate Swivel Castor. The 4 hole top p... Read Morelate measures 162mm x 140mm with 140mm x 105mm Bolt Hole Centres. to suit a 10mm Fixing Bolt. The Wheel is a solid Cast Iron with a smooth plain bore. Load Capacity = 1020kg.
The 55 series castor is made from heavy duty pressed steel with a bright zinc finish and roller ball bearing in the swivel head.
- In Stock
150mm Swivel Castor, 300kg Capacity | Rubber Tyre Wheel, Roller Bearing (KS150RNB300)
£39.10150mm Top Plate Swivel Castor with 105x80mm Hole C... Read Moreentres. Blue Elastic Rubber Tyre on a Nylon Centre Wheel with Roller Bearing. Load Capacity = 300kg.Blue elastic rubber tyre caster wheels offer a higher load capacity over standard grey or black rubbers and will not mark floors. - In Stock
150mm Swivel Castor, 1020kg Capacity | Cast Iron Wheel, Roller Bearing (655CIB)
£87.69150mm Top Plate Swivel Castor. The 4 hole top p... Read Morelate measures 162mm x 140mm with 140mm x 105mm Bolt Hole Centres. to suit a 10mm Fixing Bolt. The wheel is a solid Cast Iron with a needle roller bearing. Load Capacity = 1020kg.
The 55 series castor is made from heavy duty pressed steel with a bright zinc finish and roller ball bearing in the swivel head.
- In Stock
100mm Swivel Castor, 270kg Capacity | Nylon Wheel, Plain Bore (461NY)
£12.53100mm Top Plate Swivel Castor (Flexello 61 Series)... Read More. The top plate measures 128x102mm and has 100/105x76/80mm Fixing Bolt Hole Centres (105X80mm). White Nylon Wheel with a 32mm Tread Width and a smooth Plain Bore. Load Capacity = 270kgThe Flexello 61 Series is an established industry standard range of Pressed Steel Castors that is suitable for most industrial castor uses. This range has a ball bearing swivel head and finished with a bright zinc plating. This range has a larger top plate than most 100mm castors with the castor's top plate measuring 128x102mm. - In Stock
160mm Swivel Castor, 300kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSZH160PN1B)
£24.27160mm Single Bolt Hole (16mm) Swivel Castor (Press... Read Moreed Steel). The wheel has a Red Polyurethane Tyre (Shore A 92) on a White Nylon Centre with a Roller Bearing. The Load Capacity is 300kg using manual propulsion at 4km/h (walking speed).Key Specifications:- Bolt Hole Size: 16mm (To reduce the bolt hole to suit a 12mm fixing bolt, a reducing washer can be used. Click here for the ACZ600.)
- Overall Height: 185mm
- Tread Width: 40mm
- Bearing Type: Roller Bearing
- Swivel Radius: 140mm
- Tyre Hardness: Shore A 92
- Key Features:
- High Load Capacity
- Low Rolling Resistance
- High Wear Resistance
- Reduce Vibration
- Low noise Operation
- In Stock
200mm Swivel Castor, 300kg Capacity | Nylon Wheel, Roller Bearing (MSV200NY1B)
£24.84200mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Hole Centres and 235mm Overall height. The White Nylon Wheel has a 50mm Tread Width and a Roller Bearing. Load Capacity = 300kg - In Stock
200mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK200PN2B)
£48.52200mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Fixing Bolt Hole Centres. Polyurethane Tyre on a Nylon Centre Wheel with Ball Bearings. Load Capacity = 500kg. - In Stock
200mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSK200PC2B)
£63.71200mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Fixing Bolt Hole Centres. Polyurethane Tyre on a Cast Iron Centre Wheel with Ball Bearings. Load Capacity = 500kg. - In Stock
100mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball bearing (MSK100NY2B)
£17.60100mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60 Hole Centres. Nylon Wheel with Ball bearing. Load Capacity = 300kg - 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 - In Stock
100mm Shock Absorbing Swivel Castor, 100kg Capacity | Polyurethane Tyre Wheel (GDS10075SF)
£85.84... Read More-variant-east-asian: normal; font-size: 14px;">100mm Shock Absorbing Swivel Castor with 78mm x 78mm 4-hole Top Plate with 58mm x 58mm Bolt Hole spacings each fixing hole drilled to 7mm, The Polyurethane tyre on Aluminium Centre is fitted with precision ball bearings, This caster has a load capacity of 100kg.
The shock absorbing function of this castor means that the overall height can vary by 20mm. The casters height without load is 160mm and this reduces incrementally by up to 20mm as load increases (see image 2 - GDS100 Curve) and fully compressed with a load of 75kg. Furthermore, the castor's offset will also vary from 45mm (at its full height of 160mm) to 53mm as the load increases.
