
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, 100kg Capacity | Rubber Tyre Wheel, Roller Bearing (LSV125RMB)
£8.81125mm Top Plate Swivel Castor with a Black Rubber ... Read MoreTyre Wheel on a Pressed Steel centre complete with Thread Guards. It has 80x60mm bolt hole centres and a load capacity of 100kg using manual propulsion at 4km/h.This popular general purpose castor is fitted with a Black Rubber Tyre Wheel that is gentle on floors. The Caster wheel has a roller bearing that offers low rolling resistance. It is ideal as a new or replacement castor for most domestic or industrial applications such as a trolley or dolly where the travel speed of the castor generally does not exceed walking speed.
In Stock100mm Shock Absorbing Swivel Castor, 100kg Capacity | Polyurethane Tyre Wheel (GDS10075SF)
£85.84... Read Moreriant-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.
In Stock100mm Black Swivel Castor, 180kg Capacity | Rubber Tyre Wheel, Ball Bearing (K07HS100RN2B)
Original price was: £16.50.£10.73Current price is: £10.73.Sale!100mm All Black Single Bo... Read Morelt Hole swivel castor with Black Elastic Rubber Tyre on a nylon centre wheel with a single ball bearing. This castor is designed for theatre applications to reduce reflection from lighting. It can also be used in any application where a pressed steel castor is required. The powder coating offers better castor protection against the elements than a standard Zinc Plated Castor.Key Specifications:- Bracket Material: Black Powder Coated Pressed Steel
- Fixing Type: 13mm Single Bolt (Suits 12mm Bolt)
- Overall Height: 125mm
- Load Capacity: 180kg (using manual propulsion at 4km/h - walking speed)
- Wheel Material: Black Elastic Rubber Tyre on a Black Nylon Centre
- Wheel Bearing Type: Ball Bearing
- Tread Width: 36mm
- Castor Offset: 36mm
- Swivel Radius: 128mm
In Stock75mm 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 Stock100mm Stainless Steel Swivel Castor, 150kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (MSS100PNB)
£24.47100mm Top Plate Swivel Castor (Stainless Steel Cas... Read Moretor) with 80x60mm Bolt Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 150kg
In Stock150mm 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.
In Stock150mm Swivel Castor, 500kg Capacity | Cast Iron Wheel, Ball Bearing (KSMG150CIB)
£42.34150mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith a Cast Iron Wheel with Ball Bearing. Load Capacity = 500kg using manual propulsion at 4km/h (walking speed)Key Specifications:- Top Plate Size: 140mm x 110mm
- Bolt Hole Centres: Slotted to 114x87mm / 97.5x71.5mm
- Overall Height: 190mm
- Tread Width: 45mm
- Castor Offset: 40mm
In Stock100mm Swivel Castor, 340kg Capacity | Cast Iron Wheel, Roller Bearing (461CIB)
£25.33100mm Top Plate Swivel Castor (Flexello 61 Series)... Read More with 105x80mm Fixing Bolt Hole Centres. Cast Iron Wheel with Roller Bearing. Load Capacity = 340kgKey Specifications:- Top Plate Size: 128x102mm
- Bolt Hole Centres: 100/105x76/80mm
- Fixing Bolt Size: 10mm
- Overall Height: 125mm
- Wheel Material: Cast Iron
- Wheel Diameter: 100mm
- Wheel Tread Width: 38mm
- Bearing Type: Roller Bearing
In Stock200mm Swivel Castor, 1100kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (TSH200PT15)
£157.82200mm Heavy Duty Top Plate Swivel Castor (Fabricat... Read Moreed Castor) with 105x80mm Bolt Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Roller Bearing. Load Capacity = 1100kgThe 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 Stock50mm Low Level Swivel Castor, 160kg Capacity | Polyurethane Tyre Wheel, Plain Bore (2SL050PT0L)
£26.2150mm Low Level Twin Wheel Swivel Castor (REVVO Bra... Read Morend). The Polyurethane tyre wheels have a tread width of 14mm each and turn on a smooth Plain Bore. The Load Capacity of 160kg.This castors offers an exceptional load capacity in relation to their low overall working height and is ideal for heavy equipment being used on smooth, hard flooring. The differential action from the twin wheels makes for smooth operation.This castor has a round top plate with a diameter of 95mm and 4 fixing holes to suit a 6mm bolt. Each fixing hole is spaced 51mm from the directly opposite fixing hole (the largest distance between the fixing holes)
In Stock175mm Swivel Castor (Powder Coated), 800kg Capacity | Polyurethane Tyre Wheel (KGHP175ASFMUD)
Original price was: £152.55.£88.44Current price is: £88.44.Sale!175mm Heavy-duty Swivel Castor with a Powder Coate... Read Mored Pressed Steel Bracket and a 225mm overall height. The caster wheel has a Blue Polyurethane Tyre (Shore A 95) on an Aluminium Centre with Ball BearingsFeatures:- 800kg Load Capacity: For the most demanding applications and heavy-duty loads.
- Silver/Grey Powder Coating: Making this the best looking heavy-duty industrial castor on the market. The powder-coating not only looks great but also provides corrosion protection which prolongs its optimal performance and keeps the castor looking good.
- Quality Ball Bearings: For the lowest rolling resistance to reduce the effort needed to move.
- Double Ball Bearing Race and hardened bearing Seats in the swivel head: For an optimum swivel rotation function and durability.
- Strong Pressed Steel Plate: The top plate measure 140x110mm with fixing bolt holes slotted to 105x80/75mm to suit 10mm bolts
- Precision Engineered: These castors have an incredibly smooth swivelling function with no "rock" to the swivel head and no sideways movement on the wheel for exceptional operating performance.
In Stock200mm Swivel Castor, 600kg Capacity | Cast Iron Wheel, Ball Bearing (KSMG200CIB)
£57.34200mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Cast Iron Wheel with Ball Bearing. Load Capacity = 600kg
In Stock100mm Swivel Castor, 150kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321828)
£14.30100mm Bolt Hole Swivel Castor (Pressed Steel) with... Read More 10mm Bolt Hole. Blue Rubber Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 150kg

















