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Description
100mm Swivel Castor — Blue Rubber on Polypropylene Wheel with Directional Brake
This 100mm swivel castor features a blue rubber-on-polypropylene wheel mounted on a pressed steel swivel head with a zinc-plated top plate and an integrated directional brake. Engineered for commercial, industrial, and retail environments, it delivers smooth, controlled mobility for trolleys, carts, workbenches, shelving units, and mobile equipment — supporting up to 120kg per castor. The directional brake locks wheel rotation while preserving swivel movement, giving operators precise positional control without fully immobilising the unit.
Key Features
- 120kg Load Capacity — Rated for demanding commercial and light-industrial applications.
- Blue Rubber on Polypropylene Wheel — Rubber tread absorbs vibration, reduces noise, and protects floor surfaces; polypropylene core keeps weight low.
- Directional Brake — Locks wheel rotation independently of swivel movement for controlled, stable positioning.
- Pressed Steel Swivel Head — Zinc-plated for corrosion resistance; ball journal bearing ensures smooth, low-effort swivel action.
- 4-Bolt-Hole Top Plate — Standard bolt pattern for straightforward fitting to most trolleys, carts, and equipment frames.
- 75 Shore A Tread Hardness — Balanced hardness for reliable traction across smooth concrete, vinyl, and tiled floors.
Technical Specifications
| Specification | Detail |
|---|---|
| Castor Type | Swivel with Directional Brake |
| Fitting Type | Top Plate (4-Bolt-Hole) |
| Wheel Diameter | 100 mm |
| Tread Width | 32 mm |
| Wheel Material | Blue Rubber on Black Polypropylene |
| Tread Hardness | 75 Shore A |
| Wheel Colour | Blue |
| Bearing Type | Ball Journal |
| Total Castor Height | 127 mm |
| Max Load Capacity (Single Castor) | 120 kg |
| Max Load Capacity (Set of 4) | 360 kg * |
| Top Plate Length | 100 mm |
| Top Plate Width | 85 mm |
| Plate Hole Centres (Width) | 60 mm / 80 mm |
| Plate Hole Diameter | 10 mm |
| Plate Finish | Zinc Plated Pressed Steel |
* Set-of-4 load rating assumes even weight distribution across all four castors.
Typical Applications
Warehouse & Distribution Picking trolleys, order carts, and goods-handling equipment requiring reliable load support and directional control.
Retail & Display Mobile shelving, display stands, and merchandising units that need frequent repositioning on smooth floors.
Manufacturing & Facilities Tool carts, parts trolleys, and maintenance equipment in production and facilities management environments.
Catering & Hospitality Mobile service trolleys and kitchen carts where smooth, quiet movement and easy braking are essential.
Frequently Asked Questions
What is the difference between a directional brake and a total lock brake?
A directional brake stops the wheel from rotating but allows the swivel head to continue turning freely. This means the castor can still pivot and align with the direction of travel, but the equipment will not roll away unintentionally. A total lock brake immobilises both the wheel and the swivel head completely, preventing all movement. For applications where you need to hold position without fully fixing the equipment in place, a directional brake is the preferred choice.
Is this castor suitable for use on hard floors such as concrete or vinyl?
Yes. The blue rubber tread at 75 Shore A hardness is well suited to smooth hard floors including concrete, vinyl, ceramic tile, and epoxy-coated surfaces. The rubber compound provides adequate grip and floor protection without marking or scuffing. It is not recommended for heavily uneven or outdoor terrain where a harder, larger-diameter wheel would be more appropriate.
How do I know if this top plate will fit my existing equipment?
The top plate measures 100mm (length) x 85mm (width) with a 4-bolt-hole pattern. The hole centres span 60mm or 80mm in width, and each hole has a 10mm diameter. Before ordering, measure the existing castor plate or the mounting points on your equipment and compare against these dimensions. This is a widely used standard plate size compatible with most commercial trolleys, carts, and shelving frames.
What is the maximum load if I fit four of these castors to one piece of equipment?
Each castor is individually rated to 120kg. However, the combined set-of-4 rating is 360kg rather than 480kg. This accounts for real-world conditions where weight distribution across four castors is rarely perfectly equal — uneven floors, dynamic loading, and off-centre loads mean one or two castors may bear a disproportionate share of the total weight. Always work within the 360kg set rating to maintain a safe operating margin.
Sold individually. For most applications, four castors are required per unit. Ensure the combined load of your equipment does not exceed the set-of-4 rated capacity. Suitable for indoor use on smooth, level surfaces.
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