Our Clients
-
Fast Delivery Express Shipping on All Orders
-
Industrial Grade Quality
Build For Professional Use -
Compliance With UK Safety Standards
-
Need help? Call Us 01282 270 214 or email sales@safetysuppliesco.co.uk
Description
Pressed Steel Braked Swivel Castors with Black Polypropylene Wheel — 50mm to 100mm
A pressed steel swivel castor fitted with a hard-wearing black polypropylene wheel and an integrated foot brake. Designed for light to medium-duty applications where controlled mobility and secure, stationary positioning are both required. Mounted via a four-hole top plate for straightforward, bolt-on installation across a wide range of equipment, furniture, and industrial fixtures. Available in three wheel diameters — 50mm, 75mm, and 100mm — each matched to a specific load rating to suit your exact requirements.
Quick Comparison — All Options
| Specification | 50mm — 65 kg | 75mm — 75 kg | 100mm — 85 kg |
|---|---|---|---|
| Wheel Diameter | 50 mm | 75 mm | 100 mm |
| Load Capacity (per castor) | 65 kg | 75 kg | 85 kg |
| Max Load — 4 Castors | 195 kg | 225 kg | 255 kg |
| Total Castor Height | 72 mm | 100 mm | 122 mm |
| Tread Width | 22 mm | 22 mm | 22 mm |
| Swivel Radius | 80 mm | 92 mm | 97 mm |
| Top Plate Size | 60 x 60 mm | 60 x 60 mm | 60 x 60 mm |
| Hole Centres (L x W) | 48/38 x 48/38 mm | 48/38 x 48/38 mm | 48/38 x 48/38 mm |
| Hole Diameter | 6 mm | 6 mm | 6 mm |
| Wheel Material | Polypropylene | Polypropylene | Polypropylene |
| Housing Material | Pressed Steel | Pressed Steel | Pressed Steel |
| Bearing Type | Plain | Plain | Plain |
| Colour | Black | Black | Black |
| Brake | Foot Brake | Foot Brake | Foot Brake |
* All measurements are nominal. Refer to individual variant specifications below for full technical details.
Detailed Specifications by Option
| Castor Type | Swivel with Brake — Top Plate Mounting |
| Wheel Diameter | 50 mm |
| Wheel Material | Polypropylene |
| Wheel Colour | Black |
| Tread Width | 22 mm |
| Housing / Yoke Material | Pressed Steel |
| Bearing Type | Plain |
| Load Capacity (per castor) | 65 kg |
| Max Load Capacity (4 castors) | 195 kg |
| Total Castor Height | 72 mm |
| Swivel Radius | 80 mm |
| Top Plate Length | 60 mm |
| Top Plate Width | 60 mm |
| Plate Hole Centres — Length | 48 / 38 mm |
| Plate Hole Centres — Width | 48 / 38 mm |
| Plate Hole Diameter | 6 mm |
| Brake Type | Integrated Foot Brake |
Light-duty retail display units and shelving
Office furniture and mobile pedestals
Catering trolleys and service carts
Hospitality equipment and room service trolleys
Workshop tool trays and small equipment stands
Medical and clinical auxiliary trolleys
Domestic furniture — sofas, cabinets, and storage units
Point-of-sale fixtures and promotional displays
| Castor Type | Swivel with Brake — Top Plate Mounting |
| Wheel Diameter | 75 mm |
| Wheel Material | Polypropylene |
| Wheel Colour | Black |
| Tread Width | 22 mm |
| Housing / Yoke Material | Pressed Steel |
| Bearing Type | Plain |
| Load Capacity (per castor) | 75 kg |
| Max Load Capacity (4 castors) | 225 kg |
| Total Castor Height | 100 mm |
| Swivel Radius | 92 mm |
| Top Plate Length | 60 mm |
| Top Plate Width | 60 mm |
| Plate Hole Centres — Length | 48 / 38 mm |
| Plate Hole Centres — Width | 48 / 38 mm |
| Plate Hole Diameter | 6 mm |
| Brake Type | Integrated Foot Brake |
Retail gondola shelving and mid-floor display units
Industrial workbenches and mobile tool stations
Warehouse picking trolleys and order carts
Healthcare ward equipment and auxiliary trolleys
Catering and food service preparation trolleys
Office storage units and mobile filing cabinets
Hospitality housekeeping and linen trolleys
Education and library mobile shelving units
| Castor Type | Swivel with Brake — Top Plate Mounting |
| Wheel Diameter | 100 mm |
| Wheel Material | Polypropylene |
| Wheel Colour | Black |
| Tread Width | 22 mm |
| Housing / Yoke Material | Pressed Steel |
| Bearing Type | Plain |
| Load Capacity (per castor) | 85 kg |
| Max Load Capacity (4 castors) | 255 kg |
| Total Castor Height | 122 mm |
| Swivel Radius | 97 mm |
| Top Plate Length | 60 mm |
| Top Plate Width | 60 mm |
| Plate Hole Centres — Length | 48 / 38 mm |
| Plate Hole Centres — Width | 48 / 38 mm |
| Plate Hole Diameter | 6 mm |
| Brake Type | Integrated Foot Brake |
Heavy retail fixtures and gondola end-caps
Industrial platform trolleys and goods carts
Warehouse racking base units and mobile shelving
Workshop equipment stands and machine bases
Healthcare patient equipment and procedure trolleys
Hospitality banqueting trolleys and service stations
Construction site material handling and tool storage
Commercial laundry and linen distribution trolleys
Frequently Asked Questions
How do I choose the right wheel size for my application?
The correct wheel size depends on two factors: the total weight of the load and the floor surface. The 50mm option (65 kg per castor, 195 kg across four) suits lighter loads on smooth, hard floors — ideal for office furniture, retail displays, and catering trolleys. The 75mm option (75 kg per castor, 225 kg across four) handles medium loads and rolls more easily over minor floor imperfections, making it well suited to workshop benches, warehouse carts, and hospitality trolleys. The 100mm option (85 kg per castor, 255 kg across four) is the strongest choice, offering the greatest ground clearance and the smoothest roll over uneven or slightly rough surfaces — recommended for heavier industrial and commercial equipment.
What does the four-hole top plate mean, and how do I fit these castors?
The four-hole top plate is the mounting interface that attaches the castor to the underside of your equipment. Each plate measures 60 x 60 mm with four bolt holes arranged in a square pattern. The hole centres are 48 mm or 38 mm apart (dual-pitch), and each hole has a 6 mm diameter — accommodating standard M6 bolts. To fit, simply align the plate with the pre-drilled holes on your equipment, insert four M6 bolts, and tighten securely. No welding or specialist tools are required, making these castors straightforward to install or replace.
Are these castors suitable for use on hard floors such as tiles, concrete, or laminate?
Yes. The black polypropylene wheel is a hard, rigid material that performs well on smooth, hard floor surfaces including concrete, ceramic tile, vinyl, and laminate. It is lightweight, resistant to moisture, and will not leave marks on most hard floor types under normal operating conditions. For softer floor surfaces such as carpet or rubber matting, a castor with a softer tread material would typically be more appropriate to ensure smooth rolling and reduced floor resistance.
How does the foot brake work, and is it suitable for sloped or uneven surfaces?
Each castor is fitted with an integrated foot brake that is engaged by pressing down on the brake lever with your foot and released by lifting it. When engaged, the brake locks the wheel to prevent rotation, keeping the equipment stationary. These castors are designed for use on level or near-level surfaces. On significantly sloped or uneven ground, additional securing measures — such as wheel chocks or fixed castors at key positions — are recommended to ensure safe, stable positioning.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.