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 Stock200mm Swivel Castor, 250kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSVH200PN1B)
£31.14200mm Single Bolt Hole (12mm) Swivel Castor (Press... Read Moreed Steel). Red Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 250kg- Out of Stock - On the Way
75mm Swivel Castor, 80kg Capacity | Nylon Wheel, Plain Bore (2KS075PPBH)
£7.6875mm Twin Wheel Single Bolt Hole Swivel Castor (Pr... Read Moreessed Steel) with 10mm Fixing Hole and 99mm overall height. Black Polypropylene Wheel with Plain Bore and a Load Capacity of 80kg - In Stock
82mm Low Level Swivel Castor, 650kg Capacity | 82mm Polyurethane Tyre Wheel, Ball bearing (KS8270PTB)
£112.5082mm Low Level Top Plate Swivel Castor (Low Level ... Read MoreCastor) with 140x105 Hole Centres. Polyurethane Wheel with Ball bearing. Load Capacity = 650kg - Out of Stock - On the Way
97mm Footmaster Levelling Castor, Plate Fitting, 1500kg Capacity | 97mm Nylon Wheel (KGD-150F)
£95.5997mm Footmaster Levelling Castor with Top Plate Fi... Read Moretting (GD-150-F-MCN). 1500kg Static and 750kg Dynamic Load Capacity. The Die Cast Aluminium Foot Pad is operated by a Hex Adjuster with M20 Leveler (Spanner not included)The Foot Master levelling castor is a multi-functional swivel castor that provides mobility and levelling functions. This allows users to move and position large equipment into place with added stability using the levelling feature.Because of the lifting and lowering function of the Foot Master castor, like all Jacking Castors, it is important understand that each castor may be subjected to HALF THE TOTAL WEIGHT. Therefore, the recommended load capacity for each Foot Master Levelling Castor is half the castor's Static Load Capacity, that is, when the castors' levelling function is not being used. The load capacity of the Footmaster Castor when it is being moved and levelled is given by the Dynamic Load Capacity. - In Stock
80mm Swivel Castor Threaded Stem, 90kg Capacity | Blue Rubber Tyre wheel, Plain Bore (K361RNST)
£10.8780mm Stem Fitting Swivel Castor with M12x25mm Thre... Read Moreaded Stem. Blue Rubber Tyre Wheel with a Nylon Centre and Plain Bore. The Load Capacity of this castor is 90kg at 4km/h using manual propulsion.This castor has a ball bearing swivel head and finished with a bright zinc plating.Key Specifications:- Threaded Stem Size: M12x25mm
- Overall Height: 95mm
- Wheel Material: Blue Elastic Rubber Tyre on a Black Nylon Centre
- Swivel Radius: 64.5mm
- In Stock
125mm Swivel Castor, 150kg Capacity | Nylon Wheel, Ball Bearing (1321028)
£10.58125mm Top Plate Swivel Castor (Pressed Steel) w... Read Moreith 80x60 Hole Centres. Nylon Wheel with Ball 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.
- In Stock
125mm Stainless Steel Swivel Castor, 150kg Capacity | Nylon Wheel, Plain Bore (MSS125NYBH)
£27.33125mm Bolt Hole Swivel Castor (Stainless Steel Cas... Read Moretor) with 12mm Bolt Hole. Nylon Wheel with Plain Bore. Load Capacity = 150kg - Out of Stock - On the Way
250mm Swivel Castor, 1150kg Capacity | Cast Iron Wheel, Ball bearing (HKS25025441)
£123.87250mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Cast Iron Wheel with Ball bearing. Load Capacity = 1150kg - In Stock
50mm Footmaster Levelling Castor, 250kg Capacity | Nylon Wheel (KGDR-60FBLACK)
£47.5550mm Foot Master Levelling Castor with a black pow... Read Moreder coating finish. This product has a 4-hole top plate with 58mm x 58mm bolt hole centres and is also powder coated for added protection. The wheel is made from premium quality black Nylon with a 25mm Tread width and the Die Cast Aluminium Foot Pad has a rubber pad vibration damping rubber pad. This foot pad has a Retractable Ratchet operation.Because of the lifting and lowering function of the Foot Master castor, like all Jacking Castors, it is important understand that each castor may be subjected to HALF THE TOTAL WEIGHT. Therefore, the recommended load capacity for each Foot Master Levelling Castor is half the castor's Static Load Capacity, that is, when the castors' levelling function is not being used. The load capacity of the Footmaster Castor when it is being moved and positioned is given by the Dynamic Load Capacity.This levelling castor is a multi-functional swivel castor that provides mobility, levelling and anti-vibration functions. This allows users to move and position large equipment into place with added stability using the levelling and anti-vibration features. - In Stock
42mm Footmaster Levelling Castor, Plate Fitting, 60kg Capacity | 42mm Nylon Wheel (KGD-40F)
Original price was: £21.82.£19.32Current price is: £19.32.Sale!42mm Foot Master Levelling Castor with an ivory co... Read Moreloured powder coating finish. This product has a 4-hole top plate with 42mm x 42mm bolt hole centres and is also powder coated for added protection. The wheel is made from premium quality black Nylon with a 20mm Tread width and the Die Cast Aluminium Foot Pad has a rubber vibration damping pad. This foot pad has a Nylon Hand-wheel operationThis product's load capacity has increased to 60kg Static Load and 30kg Dynamic Load (GD-40-F-NYN)Because of the lifting and lowering function of the Foot Master castor, like all Jacking Castors, it is important understand that each castor may be subjected to HALF THE TOTAL WEIGHT. Therefore, the recommended load capacity for each Foot Master Levelling Castor is half the castor's Static Load Capacity, that is, when the castors' levelling function is not being used. The load capacity of the Footmaster Castor when it is being moved and positioned is given by the Dynamic Load Capacity.This levelling castor is a multi-functional swivel castor that provides mobility, levelling and anti-vibration functions. This allows users to move and position large equipment into place with added stability using the levelling and anti-vibration features. - In Stock
200mm Swivel Castor, 535kg Capacity | Rubber Tyre Wheel, Ball bearing, (HKS20020341)
£97.18200mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Rubber Tyre / Cast Iron Centre Wheel with Ball bearing. Load Capacity = 535kg - In Stock
75mm Heavy Duty Swivel Castor, 300kg Capacity | White Nylon Wheel, Ball Bearing (HSV075NY2B)
£24.3075mm Heavy Duty Top Plate Swivel Castor with Heavy... Read More Gauge Pressed Steel and a load capacity of 300kg. The swivel head has a double ball race with hardened ball race track.- The Top Plate measure 105x80mm with 80x60mm Fixing Bolt Hole Centres. The bolt holes are slotted to 80/75x60/55mm and suits 8mm Bolts.
- The castor wheel is a white nylon wheel (polyamide) with a 32mm tread width and fitted with two precision ball bearings. The hard wheel is non-marking and has the lowest rolling and swivel resistance.
- This castor is an excellent all purpose heavy duty castor. It is often used with high load mobile storage and transportation equipment in domestic, mechanical and industrial applications.
- In Stock
100mm Swivel Castor, 150kg Capacity | Nylon Wheel, Ball Bearing (1321728)
£9.80100mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60mm Fixing Bolt Hole Centres. White Nylon Wheel with Ball Bearings. The Load Capacity is 150kg using manual propulsion at 4km/h.Key Specifications:- Top Plate Size: 100x80mm
- Bolt Hole Centres: Slotted to 80x60mm or 76x44.5mm
- Overall Height: 128mm
- Offset: 31mm
- Wheel Material: White Nylon
- Tread Width: 32mm
- Bearing Type: Ball Bearing
- In Stock
125mm Swivel Castor, 200kg Capacity | Polyurethane Tyre Wheel, Ball Bearing (MSV125PN2B)
£13.05125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60 Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with ball bearing. Load Capacity = 200kg - In Stock
150mm Shock Absorbing Swivel Castor, 360kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KGDSP150ASFMUD)
Original price was: £123.23.£65.49Current price is: £65.49.Sale!150mm Shock absorbing (14mm Compression) Swivel... Read More castor and Polyurethane Tyred Aluminium Wheel. Load Capacity = 360kg
For the compression performance, please see the image for the curve by clicking on the thumbnail image above. To use this curve, please calculate the weight being carried by this castor and divide that by the one less than the number of castors on your equipment, So if you have a trolley using 4 of these castors and the total weight being carried is 500kg, then the compression of the rubber pad is the reading given on the y axis at 167kg (500kg / 3 = 167kg) which is between 11 and 12mm.
