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 Stock150mm AGV Swivel Castor ,Twin Wheel, 630kg Load | Polyurethane Wheel, Ball bearing (GATD150ASFHUD)
Original price was: £828.35.£320.14Current price is: £320.14.Sale!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. - In Stock
125mm AGV Swivel Castor, Twin Wheel, 440kg Capacity | Polyurethane Wheel, Ball bearing (GASD125ASFHUD)
Original price was: £700.30.£270.65Current price is: £270.65.Sale!This Twin wheel ... Read MoreAutomated Guided Vehicle (AGV) Castor with 125m diameter wheels has a shock absorbing 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 145mm x 145mm and has 4 bolt holes that are spaced 120mm x 120mm, each with a 11mm 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. - In Stock
150mm AGV Swivel Castor, Twin Wheel, 630kg Capacity | Polyurethane Wheel, Ball bearing (GASD150ASFHUD)
Original price was: £828.35.£320.14Current price is: £320.14.Sale!This Twin wheel ... Read MoreAutomated Guided Vehicle (AGV) Castor with 150m diameter wheels has shock absorbing 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 145mm x 145mm and has 4 bolt holes that are spaced 120mm x 120mm, each with a 11mm 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. - In Stock
75mm Black Low Level High Load Swivel Castor, 540kg Capacity | Nylon Wheel, Roller Bearing (BMCS75E)
Original price was: £30.79.£21.56Current price is: £21.56.Sale!This High Load / Low Level Swivel Castor is made t... Read Moreo take a heavy load with a low overall height of 104mm. It has a 4 hole top plate measuring 105x79.5mm with 85.4x60.35mm bolt hole centres and the swivel head is fitted with a grease nipple.To enable the castor to operate under heavy loads of up to 540kg each castor (1,620kg total load capacity with 4 castors fitted), the swivel head has a heavy duty double ball bearing race.The caster wheel is heavy duty nylon with a 46mm tread width and needle roller bearing to reduce the rolling resistance and is an ideal castor for heavy duty applications, such as business machines, where there is an height restriction. The black nylon castor wheel will not damage concrete floors. - In Stock
130mm Shock Absorbing Swivel Castor, 350kg Capacity | 130mm Polyurethane Tyre Wheel (GDS13075SF)
£143.19130mm Shock Absorbing Swivel Castor (GDS130ASFHUD)... Read More, Polyurethane tyre on Aluminium Centre, Load Capacity = 350kg. Overall height without load = 200mm. Overall height reduces incrementally up to 30mm as load increases (see image 2 - GDS130 Compression Curve) and is fully compressed with a load of 120kg. - In Stock
200mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KSCR20020241)
£79.68200mm Swivel Castor (Pressed Steel) and Crown Trea... Read Mored Polyurethane Tyred / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 500kg - In Stock
150mm Swivel Castor, 500kg Capacity | Polyurethane Tyre Wheel, Ball bearing (KSCR15020241)
£58.95150mm Swivel Castor (Pressed Steel) and Crown Trea... Read Mored Polyurethane Tyred / Cast Iron Centre Wheel with Ball Bearing. Load Capacity = 500kg - In Stock
160mm Swivel Castor, 135kg Capacity | Rubber Tyre Wheel, Roller Bearing (LI160RMBNOTG)
Original price was: £10.58.£9.92Current price is: £9.92.Sale!160mm Top Plate Swivel Castor (Pressed Steel) with... Read More 105x80 Hole Centres. Black Rubber Tyre / Metal Centre Centre Wheel with Roller Bearing. Load Capacity = 135kg - In Stock
125mm Swivel Castor, 360kg Capacity | Nylon Wheel, Plain Bore (561NY)
£25.52125mm Top Plate Swivel Castor (Pressed Steel) with... Read More 140x105mm Bolt Hole Centres. This castor houses a white Nylon Wheel with a smooth Plain Bore and has a Load Capacity of 360kg using manual propulsion at 5km/h (walking speed) - In Stock
125mm Swivel Castor, 325kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (561SUB)
£53.61125mm Top Plate Swivel Castor made from Pressed St... Read Moreeel (Flexello Brand) and has a ball bearing swivel race. The Top Plate has four fixing holes to suit 10mm bolts and are slotted to 140/120mm x 105/95mm Bolt Hole Centres. The caster wheel has a Red Polyurethane Tyre on a Cast Iron Centre Wheel with with A 35mm Tread Width and a Needle Roller Bearing. Load Capacity = 325kg - 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, 520kg Capacity | Nylon Wheel, Roller Bearing (655NYB)
£85.36150mm Flexello Top Plate Swivel Castor. The 4 h... Read Moreole top plate measures 162mm x 140mm with 140mm x 105mm Bolt Hole Centres. to suit a 10mm Fixing Bolt. The Castor Wheel is solid Nylon with needle roller bearing. Load Capacity = 520kg.
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
200mm Swivel Castor, 1090kg Capacity | Cast Iron Wheel, Roller Bearing (855CIB)
£101.91200mm Top Plate Swivel Castor with 140x105mm Bolt ... Read MoreHole Centres each suiting an M10 fixing bolt. The heavy duty bracket has a swivel head with roller ball bearings and has a grease nipple. The pressed steel frame has a bright zinc finish. This castor houses a quality Flexello Cast Iron Wheel that has a Roller Bearing fitted into the central bore to reducing rolling resistance. The Load Capacity of this castor is 1090kg. - Out of Stock - On the Way
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
200mm Swivel Castor, 1500kg Capacity | Polyurethane Tyre Wheel, Roller Bearing (2SH200PT15)
£307.52200mm Heavy Duty Top Plate Swivel Castor (Fabricat... Read Moreed Castor - Twin Wheel) with 105x80 Hole Centres. Polyurethane Tyre / Cast Iron Centre Wheel with Roller Bearing. Load Capacity = 1500kg
