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 Stock
260mm Swivel Castor, 120kg Capacity | Puncture Proof Wheel, Roller Bearing (KS260PPD)
£104.57260mm Puncture Proof Swivel Castor (Pressed Steel)... Read More with 150x115mm Fixing Bolt Hole Centres. Diamond Tread Puncture Proof Wheel on a Red Polypropylene (Plastic) Centre with a Roller Bearing. Load Capacity = 120kgThe wheel is sized 3.00-4 and made from microcellular polyurethane making it a strong Light-Medium duty wheel and though it has a 10" diameter, it is also commonly referred to as a 260mm wheel. - In Stock
200mm Swivel Castor, 1000kg Capacity | Nylon Wheel, Ball bearing (HKS20020111)
£113.91200mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Nylon Wheel with Ball bearing. Load Capacity = 1000kg - Out of Stock - On the Way
125mm Swivel Castor, 150kg Capacity | Rubber Tyre Wheel, Ball Bearing (1321118)
£15.55125mm 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
150mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KS150PCB500)
£64.40150mm Top Plate Swivel Castor (Extra Heavy Pressed... Read More Steel Castor) with 105x80mm Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 500kg - In Stock
Swivel Castor (Twin Wheel), 250mm, 2800kg Capacity, Polyurethane Tyre Wheel, Ball Bearing (K2ST250PC2B)
£594.18250mm Twin Wheel Extra Heavy Duty Fabricated Swive... Read Morel Castor. The Swivel Head Turns On Thrust and Taper Roller Bearings For Extra Strength and The Bracket Is Finished In Black Epoxy Paint.This Castor Has A Top Plate Measuring 250mm X 250mm with Bolt Hole Spacings Of 190mm X 190mm Drilled To 19mm Diameter. The Two Polyurethane Tyre on a Cast Iron Centre Wheels Each Have Ball Bearings Fitted To Reduce The Rolling Resistance.The Castor Has A 2800kg Load Rating At 4Km/H - In Stock
160mm Swivel Castor, 200kg Capacity | Rubber Tyre Wheel, Roller Bearing (MSVH160RN1B)
£22.44160mm Single Bolt Hole (12mm) Swivel Castor (Press... Read Moreed Steel). Blue Rubber Tyred / Nylon Centre Wheel with Roller Bearing. Load Capacity = 200kg - In Stock
200mm Swivel Castor, 535kg Capacity | Rubber Tyre Wheel, Roller Bearing (TSH200RU15)
£107.45200mm Heavy Duty Top Plate Swivel Castor (Fabri... Read Morecated Castor) with 105x80 Hole Centres. Rubber Tyre / Cast Iron Centre Wheel with Roller Bearing. Load Capacity = 535kg
Features of the H Series Castor
- 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 Stock
125mm Swivel Castor, 350kg Capacity | Cast Iron Wheel, Ball Bearing (KSMG125CIB)
£35.17125mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80 Hole Centres. Cast Iron Wheel with Ball Bearing. Load Capacity = 350kg - In Stock
125mm Swivel Castor, 300kg Capacity | Nylon Wheel, Ball Bearing (MSK125NY2B)
£21.60125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 80x60mm Fixing Bolt Hole Centres and 157mm Overall Height. Nylon Wheel with Ball Bearings. Load Capacity = 300kg.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. The nylon wheel is insensitive to water and will not mark or damage most flooring. - In Stock
50mm Swivel Castor, 40kg Capacity | Nylon Wheel, Plain Bore (1350000)
£2.1550mm Top Plate Swivel Castor (Pressed Steel) with ... Read More54x25mm Fixing Bolt Hole Centres. White Nylon Wheel with Plain Bore. Load Capacity = 40kg - In Stock
100mm Swivel Castor, 225kg Capacity | Polyurethane Tyre Wheel, Plain Bore (TS4100PT04)
£35.70100mm Top Plate Swivel Castor (Pressed Steel). Wit... Read Moreh a top plate of 135x110mm and 105x80mm bolt hole centres, this castor has a larger top plate than most 100mm castors. The wheel is a Revvo 100PT14 which is a Polyurethane Tyre on a Cast Iron Wheel with smooth Plain Bore. Load Capacity = 225Kg - In Stock
200mm Stainless Steel Swivel Castor, 300kg Capacity | Nylon Wheel, Plain Bore (MSS200NY)
£43.15200mm Top Plate Swivel Castor (Stainless Steel Cas... Read Moretor) with 105x80 Hole Centres. Nylon Wheel with Plain Bore. Load Capacity = 300kg - In Stock
82mm Low Level Swivel Castor, 650kg Capacity | 82mm Polyurethane Tyre Wheel, Ball bearing (KS8270PTB)
£108.6982mm Low Level Top Plate Swivel Castor (Low Level ... Read MoreCastor) with 140x105 Hole Centres. Polyurethane Wheel with Ball bearing. Load Capacity = 650kg - In Stock
75mm AGV Swivel Castor, Twin Wheel, 250kg Capacity | Polyurethane Wheel, Ball bearing (GASD75ASFHUD)
£436.04This Twin wheel ... Read More75mm Automated Guided Vehicle (AGV) Castor has a shock absorption 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 112mm x 112mm and has 4 bolt holes that are spaced 92mm x 92mm, each with a 9mm 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.