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
250mm Twin Wheel Extra Heavy Duty Fabricated Sw... Read Moreivel Castor Fitted with A Directional Lock To Lock Swivel Head In A Fixed Direction. 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.
This Twin wheel ... Read More150mm Automated Guided Vehicle (AGV) Castor has a bracket made from strong Forged steel that is zinc plated. There is a hardened Taper Roller Bearing in he swivel head, which has a grease nipple, for smooth swivelling action and durability. The Top Plate is 145mm x 145mm and has 4 bolt holes that are spaced 120mm x 120mm, each with a 11mm hole diameter.The castor is able to tilt +/- 5o from its central axis according to the flatness of the floor. This ensures that this castor's wheels keep contact with the floor allowing smooth AGV movement and protection of the loaded cargo when changing directions (See illustration below)The wheels are more widely separated from each other than most Twin Wheel Castors. When changing direction, the two wheels spin in opposite directions to each other which reduces the castor offset. The smaller the offset the less chance that the AGV will deviate from its designated line.This castor frame has two wheels with a Polyurethane tyre (Shore A 95) on an Aluminium centre each containing ball bearings, 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.
£828.35Original price was: £828.35.£320.14Current price is: £320.14.Sale!
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50mm Swivel Castor with a 4 hole top plate and 48/... Read More38x48/38mm bolt hole centres to suit 6mm fixing bolts. The wheel is Black Polypropylene with Plain Bore. Load Capacity = 50kg
75mm 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.
200mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80mm Fixing Bolt Hole Centres. Polyurethane Tyre on a Nylon Centre Wheel with Roller Bearings. Load Capacity = 400kg.
100mm White Nylon Wheel with a roller bearing f... Read Moreitted into a pressed steel swivel castor bracket. The Swivel Bracket has a 4 hole top plate with 80x60mm bolt hole spacing. The load capacity of this castor is 150kg using manual propulsion at 4km/h (walking speed)
The Nylon Wheel is a hard wheel giving it a low tractive resistance which makes it it easier to get moving compared with softer rubber tread wheels. The strength of nylon and because it wont damage concrete floors makes it one of the most popular choices. The roller bearing lowers the rolling resistance to reduce the effort required to move the castors. Put this wheel into a strong bracket that has a double ball race in the swivel head makes this castor a great choice for the widest range of industrial and domestic applications.
M12 x 18mm Threaded Stem Levelling Castor with a 5... Read More0mm Black Nylon wheel and Black Powder Coating FinishEnhance your equipment's mobility and stability with our M12 x 18mm Threaded Stem Levelling Castor. This high-performance castor features a durable 50mm black Nylon wheel with a 25mm tread width and a robust Die Cast Aluminium foot pad. The foot pad is equipped with a vibration-damping rubber pad and a convenient Nylon hand-wheel for easy operation.Key Features:
Versatile Functionality: Provides mobility, levelling, and anti-vibration functions
Durable Construction: Black powder coating finish for long-lasting use
Precise Levelling: Jacking castor design for smooth lifting and lowering
Why Choose This Levelling Castor?Our Foot Master Levelling Castor is designed to handle heavy loads with precision. It’s crucial to note that during the levelling process, each castor may bear half the total weight of the equipment. Therefore, the recommended load capacity when the levelling function is engaged is half of the static load capacity. The dynamic load capacity represents the maximum load the castor can handle while moving.Ideal for positioning large equipment with added stability, this levelling castor ensures your machinery is secure and easy to adjust. The multi-functional swivel design offers seamless mobility combined with anti-vibration features, making it the perfect choice for environments where precision and stability are paramount.
125mm Bolt Hole Swivel Castor (Pressed Steel) w... Read Moreith 10mm Bolt Hole. Polyurethane Tyre / Nylon Centre Wheel with Ball Bearing. Load Capacity = 150kg
This product has been discontinued. The closest alternative is our 1321768which is the same bracket and wheel but with a roller bearing rather than a ball bearing.
150mm 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.This castor has directional lock slots in the swivel head to enable the attachment of a retro fit directional lock (HKDL).The overall height of this castor is 238mm.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.
150mm Top Plate Swivel Castor (Fabricated Steel) w... Read Moreith 105x80mm Fixing Bolt Hole Centres. Black Rubber Tyre on an Aluminium Centre Wheel with Ball Bearings. Load Capacity = 300kg
150mm Heavy Duty Top Plate Swivel Castor (Fabricat... Read Moreed Castor) with 105x80mm Fixing Bolt Hole Centres. Rubber Tyre / Cast Iron Centre Wheel with Roller Bearing. Load Capacity = 370kgFeatures 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
100mm Top Plate Swivel Castor (Heavy Gauge Pressed... Read More Steel) with 80x60 Hole Centres. Rubber Tyre / Nylon Centre Wheel with Roller Bearing. Load Capacity = 160kg
100mm Top Plate Swivel Castor (Flexello 61 Seri... Read Morees) with 105x80mm Hole Centres. Polyurethane Tyre / Nylon Centre Wheel with Plain Bore. Load Capacity = 250kg
The 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.
We stock a complete range of swivel castors and their associate Fixed and Braked Castors (where available). Our ranges come with a wide variety of top plate sizes and fixing bolt hole centres.
The ranges include pressed steel, Stainless Steel and Fabricated or welded castor housings.
A castor’s size is usually referred to by the wheel’s diameter. The most common sizes are 40mm, 50mm, 75mm, 80mm, 100mm, 125mm, 150mm, 160mm, 200mm, 250mm and 300mm. These are the wheel sizes and because the swivel head sits above the caster wheel, the castor’s overall height will be somewhat larger than the wheel. We’ve had some customers purchase a 100mm Castor expecting it to be 100mm tall, it’s not, it’s usually around 128mm tall.
Each Swivel Castor can have a wide range of castor wheels. Nylon, Polypropylene, Rubber Tyre, Elastic Rubber Tyre, Polyurethane Tyres and Cast Iron Wheels are the most common.