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Description
Pressed Steel Swivel Castors with Black Polypropylene Wheel — 50mm to 100mm
A robust, light-duty swivel castor engineered for smooth, reliable mobility across a wide range of indoor environments. Constructed with a pressed steel housing and a solid black polypropylene wheel, these castors are designed to mount quickly via a four-hole top plate and deliver consistent performance under load. Available in three wheel diameters — 50mm, 75mm, and 100mm — each size is rated to a specific load capacity, making it straightforward to select the right castor for your application.
Available in Multiple Castor Wheel Sizes & Types
Explore this castor wheel's different types, and also Available in multiple sizes. Choose the options below.
Quick Comparison — All Options at a Glance
| Specification | 50mm — 65 kg | 75mm — 75 kg | 100mm — 85 kg |
|---|---|---|---|
| Wheel Diameter | 50 mm | 75 mm | 100 mm |
| Load Capacity | 65 kg | 75 kg | 85 kg |
| Total Load Capacity of 4 Castors | 195 kg | 225 kg | 255 kg |
| Total Height | 72 mm | 100 mm | 122 mm |
| Tread Width | 22 mm | 22 mm | 22 mm |
| Swivel Radius | 48 mm | 70 mm | 83 mm |
| Top Plate Size | 60 × 60 mm | 60 × 60 mm | 60 × 60 mm |
| Hole Pattern | 4-Hole | 4-Hole | 4-Hole |
| Wheel Material | Polypropylene | Polypropylene | Polypropylene |
| Housing Material | Pressed Steel | Pressed Steel | Pressed Steel |
| Bearing Type | Plain | Plain | Plain |
| Colour | Black | Black | Black |
| Brake | None | None | None |
* All measurements are nominal. Refer to individual variant specifications below for full detail.
Variant Specifications & Applications
| Wheel Diameter | 50 mm |
| Load Capacity | 65 kg per castor |
| Total Height (Floor to Plate) | 72 mm |
| Tread Width | 22 mm |
| Swivel Radius | 48 mm |
| Top Plate Dimensions | 60 mm × 60 mm |
| Hole Pattern | 4-Hole Top Plate |
| Hole Centres (Diagonal) | 48 mm × 48 mm (approx.) |
| Wheel Material | Black Polypropylene |
| Housing / Bracket Material | Pressed Steel |
| Bearing Type | Plain Bearing |
| Swivel Action | 360° Swivel |
| Brake | None |
| Colour | Black |
| Floor Type Suitability | Hard, smooth, and semi-smooth indoor floors |
Typical Applications
- Light-duty trolleys and hand carts in retail and stockroom environments
- Display stands, shelving units, and point-of-sale fixtures
- Office furniture including pedestals, filing cabinets, and small storage units
- Domestic appliances, laundry carts, and household storage solutions
- Workshop benches and small equipment stands requiring compact mobility
- Hospitality trolleys, room service carts, and catering equipment
| Wheel Diameter | 75 mm |
| Load Capacity | 75 kg per castor |
| Total Height (Floor to Plate) | 100 mm |
| Tread Width | 22 mm |
| Swivel Radius | 70 mm |
| Top Plate Dimensions | 60 mm × 60 mm |
| Hole Pattern | 4-Hole Top Plate |
| Hole Centres (Diagonal) | 48 mm × 48 mm (approx.) |
| Wheel Material | Black Polypropylene |
| Housing / Bracket Material | Pressed Steel |
| Bearing Type | Plain Bearing |
| Swivel Action | 360° Swivel |
| Brake | None |
| Colour | Black |
| Floor Type Suitability | Hard, smooth, and semi-smooth indoor floors |
Typical Applications
- Medium-duty platform trolleys and warehouse picking carts
- Industrial shelving, racking units, and mobile storage bays
- Healthcare equipment including dressing trolleys and medical supply carts
- Catering and hospitality service trolleys requiring a higher ground clearance
- Workshop and maintenance equipment stands with moderate load requirements
- Retail gondola units, display fixtures, and mobile merchandising stands
| Wheel Diameter | 100 mm |
| Load Capacity | 85 kg per castor |
| Total Height (Floor to Plate) | 122 mm |
| Tread Width | 22 mm |
| Swivel Radius | 83 mm |
| Top Plate Dimensions | 60 mm × 60 mm |
| Hole Pattern | 4-Hole Top Plate |
| Hole Centres (Diagonal) | 48 mm × 48 mm (approx.) |
| Wheel Material | Black Polypropylene |
| Housing / Bracket Material | Pressed Steel |
| Bearing Type | Plain Bearing |
| Swivel Action | 360° Swivel |
| Brake | None |
| Colour | Black |
| Floor Type Suitability | Hard, smooth, and semi-smooth indoor floors |
Typical Applications
- Heavy-duty warehouse trolleys, pallet movers, and goods transport equipment
- Industrial workbenches, machine bases, and heavy equipment stands
- Large catering and hospitality trolleys carrying substantial loads
- Healthcare and institutional equipment requiring a higher ride height and greater load tolerance
- Furniture manufacturing and assembly line mobility solutions
- Storage and distribution centre picking trolleys and order fulfilment carts
Frequently Asked Questions
How do I choose the right wheel diameter for my application?
As a general rule, a larger wheel diameter rolls more easily over uneven surfaces and distributes load more effectively, making it better suited to heavier or more demanding applications. The 50mm option is ideal for compact, light-duty use; the 75mm suits medium-duty environments with moderate loads; and the 100mm is the preferred choice where higher load capacity and greater ground clearance are required. Always ensure the total height of the castor is compatible with the clearance available on your equipment.
Are these castors suitable for use on hard floors such as tiles or concrete?
Yes. The solid black polypropylene wheel is well suited to hard, smooth, and semi-smooth indoor floor surfaces including concrete, tile, vinyl, and laminate. Polypropylene is a hard-wearing material that performs reliably on these surfaces. It is not recommended for use on soft, carpeted, or heavily textured floors where a softer wheel compound would be more appropriate.
What does the 4-hole top plate configuration mean, and how does it affect fitting?
The 4-hole top plate is the mounting interface that attaches the castor to your equipment. It features four bolt holes arranged in a square or rectangular pattern, allowing the castor to be bolted securely to a flat surface. The plate dimensions are 60mm × 60mm across all three variants, with hole centres of approximately 48mm × 48mm diagonally. This standardised plate size makes it straightforward to replace existing castors or fit these units to new equipment without modification.
Can these castors be used outdoors?
These castors are designed and rated for indoor use on hard, smooth surfaces. While the polypropylene wheel material has reasonable resistance to moisture, the pressed steel housing may be susceptible to corrosion if exposed to outdoor conditions, wet environments, or prolonged contact with moisture. For outdoor or wet-area applications, a castor with a stainless steel or zinc-plated housing and a suitable wheel compound would be a more appropriate choice.
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