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Description
Pressed Steel Swivel Castors With Grey Cast Iron Wheel
Available in 80mm (120kg) and 100mm (140kg) — 4-Hole Top Plate — Double Ball Bearing Swivel Head — UK Stock
These pressed steel swivel castors are engineered for demanding industrial and commercial environments where reliable load-bearing mobility is essential. Fitted with a grey cast iron wheel and mounted on a robust pressed steel bracket with white zinc plating, each castor delivers smooth, controlled movement across hard floor surfaces. The 4-hole top plate configuration ensures secure, versatile fixing to a wide range of equipment frames, trolleys, and platforms. Available in two wheel diameters — 80mm and 100mm — to suit different load requirements and floor clearance needs, these castors are a trusted choice for workshops, warehouses, manufacturing facilities, and retail environments across the UK.
Quick Comparison — All Options at a Glance
| Specification | 80mm Wheel | 100mm Wheel |
|---|---|---|
| Wheel Diameter | 80 mm | 100 mm |
| Load Capacity | 120 kg | 140 kg |
| Total Height (Fitted) | 106 mm | 127 mm |
| Tread Width | 30 mm | 30 mm |
| Wheel Material | Grey Cast Iron | Grey Cast Iron |
| Wheel Hardness | 85 Shore A | 85 Shore A |
| Bearing Type | Ball Journal Bearing | Ball Journal Bearing |
| Bracket Material | Pressed Steel | Pressed Steel |
| Bracket Finish | White Zinc Plating | White Zinc Plating |
| Top Plate Size | 100 x 85 mm | 100 x 85 mm |
| Hole Centres (Long) | 80 mm | 80 mm |
| Hole Centres (Short) | 60 mm | 60 mm |
| Hole Diameter | 10 mm | 10 mm |
| Number of Fixing Holes | 4 | 4 |
| Castor Type | Swivel | Swivel |
Detailed Specifications by Option
80mm Wheel — 120kg Load Capacity
Ideal for lighter industrial and commercial equipment| Wheel Diameter | 80 mm |
| Load Capacity | 120 kg |
| Total Height (Fitted) | 106 mm |
| Tread Width | 30 mm |
| Wheel Material | Grey Cast Iron |
| Wheel Hardness | 85 Shore A |
| Bearing Type | Ball Journal Bearing |
| Bracket Material | Pressed Steel |
| Bracket Finish | White Zinc Plating |
| Top Plate Size | 100 x 85 mm |
| Hole Centres (Long) | 80 mm |
| Hole Centres (Short) | 60 mm |
| Hole Diameter | 10 mm |
| Number of Fixing Holes | 4 |
| Castor Type | Swivel |
Typical Applications
- Workshop trolleys and benches
- Light industrial equipment frames
- Retail display units and shelving
- Office furniture and mobile pedestals
- Hospitality service trolleys
- Storage cabinets and mobile racks
100mm Wheel — 140kg Load Capacity
Suited to heavier loads and longer travel distances| Wheel Diameter | 100 mm |
| Load Capacity | 140 kg |
| Total Height (Fitted) | 127 mm |
| Tread Width | 30 mm |
| Wheel Material | Grey Cast Iron |
| Wheel Hardness | 85 Shore A |
| Bearing Type | Ball Journal Bearing |
| Bracket Material | Pressed Steel |
| Bracket Finish | White Zinc Plating |
| Top Plate Size | 100 x 85 mm |
| Hole Centres (Long) | 80 mm |
| Hole Centres (Short) | 60 mm |
| Hole Diameter | 10 mm |
| Number of Fixing Holes | 4 |
| Castor Type | Swivel |
Typical Applications
- Warehouse platform trucks and dollies
- Heavy-duty manufacturing equipment
- Distribution and logistics trolleys
- Industrial workstations and frames
- Healthcare equipment and bed frames
- Catering and kitchen service units
Key Product Features
- Grey cast iron wheel for durability on hard floors
- Pressed steel bracket with white zinc plating for corrosion resistance
- Double ball bearing swivel head for smooth 360° rotation
- Ball journal bearing in wheel for reduced rolling resistance
- 4-hole top plate for secure, versatile equipment mounting
- Plastic dustguard protects bearing from debris ingress
- Consistent 100 x 85mm plate across both sizes for easy interchange
- Suitable for hard, smooth, and semi-rough floor surfaces
UK Stock
4-Hole Top Plate
Ball Bearing
Cast Iron Wheel
120kg – 140kg Rated
Frequently Asked Questions
What is the difference between the 80mm and 100mm options?
The primary differences are wheel diameter, total fitted height, and load capacity. The 80mm castor has a total height of 106mm and supports up to 120kg per castor, making it well suited to lighter equipment and lower-profile applications. The 100mm castor stands 127mm tall and is rated to 140kg per castor, offering greater ground clearance and improved rolling performance over longer distances or on slightly uneven surfaces. Both share the same top plate dimensions (100 x 85mm) and fixing hole pattern, so they can be interchanged on the same equipment frame without modification.
Are these castors suitable for use on concrete or rough workshop floors?
Grey cast iron wheels perform best on hard, smooth, or semi-smooth surfaces such as sealed concrete, tile, resin-coated floors, and compacted surfaces. They are well established in workshop and industrial environments where floor conditions are firm and consistent. On heavily textured, loose, or soft surfaces, a rubber or polyurethane wheel would typically be more appropriate. If your floor surface is sealed or painted concrete, these castors will perform reliably under their rated load capacities.
How do I calculate the total load capacity I need for my application?
To calculate the required load capacity per castor, divide the total weight of the loaded equipment by the number of castors being fitted, then apply a safety margin of at least 25–30% above that figure. For example, if your trolley and its maximum load weigh 400kg and you are fitting four castors, each castor must support 100kg. Selecting the 120kg-rated 80mm option would provide an appropriate safety margin in this scenario. Always base your calculation on the maximum anticipated load, not the average.
What fixings are required to mount the top plate, and are they included?
The top plate features four fixing holes with a 10mm hole diameter, arranged on 60mm (short) and 80mm (long) hole centres. Standard M8 bolts, nuts, and washers are typically used to secure the plate to the equipment frame. Fixings are not included with the castors and should be sourced separately to match your specific frame material and thickness. The consistent hole pattern across both the 80mm and 100mm options means the same fixings can be used for either size.
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