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Description
Pressed Steel Braked Swivel Castors — Blue Rubber on Black Polypropylene Wheel
These heavy-duty pressed steel swivel castors are engineered for demanding light-to-medium duty applications where controlled movement and reliable braking are essential. Fitted with a blue rubber tyre bonded to a black polypropylene centre wheel, they deliver smooth, quiet, and non-marking floor performance across a wide range of surfaces. A directional brake mechanism locks both swivel and wheel simultaneously, keeping equipment firmly in place when stationary. Available in two sizes — 100mm and 125mm — each variant is rated to a specific load capacity, making it straightforward to select the right castor for your equipment. Ideal for use in warehousing, retail, hospitality, healthcare, and workshop environments.
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 | 100mm Option | 125mm Option |
|---|---|---|
| Wheel Diameter | 100 mm | 125 mm |
| Load Capacity | 120 kg | 140 kg |
| Overall Height | 128 mm | 155 mm |
| Wheel Width | 32 mm | 38 mm |
| Wheel Material | Blue rubber on black polypropylene | Blue rubber on black polypropylene |
| Bearing Type | Ball journal bearing | Ball journal bearing |
| Bracket Material | Pressed steel, white zinc plated | Pressed steel, white zinc plated |
| Swivel Type | 360° swivel | 360° swivel |
| Brake Type | Directional brake (swivel & wheel lock) | Directional brake (swivel & wheel lock) |
| Top Plate Size | 100 mm × 85 mm | 105 mm × 85 mm |
| Hole Centres (L × W) | 80 mm × 60 mm | 85 mm × 60 mm |
| Hole Diameter | 9 mm | 9 mm |
| Bolt Hole Pattern | 4-hole top plate | 4-hole top plate |
| Swivel Radius | 68 mm | 80 mm |
| Floor Type Suitability | Hard & smooth floors | Hard & smooth floors |
| Temperature Range | -20°C to +60°C | -20°C to +60°C |
Detailed Specifications by Option
100mm / 120kg
Wheel Diameter100 mm
Wheel Width32 mm
Wheel MaterialBlue rubber on black polypropylene
Bearing TypeBall journal bearing
Load Capacity120 kg
Overall Height128 mm
Swivel Radius68 mm
Bracket MaterialPressed steel, white zinc plated
Swivel Type360° swivel
Brake TypeDirectional brake (swivel & wheel lock)
Top Plate Size100 mm × 85 mm
Hole Centres (L × W)80 mm × 60 mm
Hole Diameter9 mm
Bolt Hole Pattern4-hole top plate
Temperature Range-20°C to +60°C
Floor SuitabilityHard & smooth floors
125mm / 140kg
Wheel Diameter125 mm
Wheel Width38 mm
Wheel MaterialBlue rubber on black polypropylene
Bearing TypeBall journal bearing
Load Capacity140 kg
Overall Height155 mm
Swivel Radius80 mm
Bracket MaterialPressed steel, white zinc plated
Swivel Type360° swivel
Brake TypeDirectional brake (swivel & wheel lock)
Top Plate Size105 mm × 85 mm
Hole Centres (L × W)85 mm × 60 mm
Hole Diameter9 mm
Bolt Hole Pattern4-hole top plate
Temperature Range-20°C to +60°C
Floor SuitabilityHard & smooth floors
Key Features & Construction
Blue Rubber TyreBonded to a black polypropylene centre, the blue rubber tyre provides excellent grip, quiet rolling, and non-marking floor protection across hard and smooth surfaces.
Directional BrakeA foot-operated directional brake locks both the swivel head and the wheel simultaneously, preventing unintended movement when equipment is stationary.
Pressed Steel BracketThe heavy-gauge pressed steel bracket is finished with white zinc plating for corrosion resistance, ensuring long-term structural integrity in demanding environments.
Ball Journal BearingPrecision ball journal bearings in the wheel hub deliver smooth, low-effort rolling even under maximum rated loads, reducing operator fatigue.
360° Swivel ActionFull 360-degree swivel rotation allows effortless directional changes, making these castors ideal for trolleys, carts, and mobile equipment requiring high manoeuvrability.
4-Hole Top Plate MountingA standard four-hole top plate with pre-drilled 9mm bolt holes ensures straightforward, secure fitting to a wide range of equipment bases without specialist tools.
Zinc-Plated FinishWhite zinc plating on the pressed steel bracket provides a clean, professional appearance while offering a reliable level of protection against light moisture and surface oxidation.
Two Size OptionsAvailable in 100mm (120kg rated) and 125mm (140kg rated) to suit different equipment weights and height requirements, with consistent build quality across both options.
Applications by Option
100mm / 120kg — Recommended Applications
- Light-duty workshop trolleys and tool carts requiring compact, low-profile castors
- Retail display units, gondola shelving bases, and point-of-sale fixtures on smooth shop floors
- Hospitality service trolleys, catering carts, and linen trolleys in hotels and restaurants
- Office furniture, mobile pedestals, and equipment stands in commercial interiors
- Healthcare auxiliary equipment such as bedside tables, instrument trolleys, and supply carts
- Light storage racks and mobile shelving units in stockrooms and back-of-house areas
125mm / 140kg — Recommended Applications
- Medium-duty warehouse trolleys, picking carts, and goods movement equipment
- Industrial workbenches, assembly tables, and mobile workstations requiring higher load ratings
- Hospitality bulk linen trolleys, laundry carts, and heavy catering equipment
- Healthcare transport trolleys, patient equipment carts, and medical supply units
- Retail stockroom dollies, roll cages, and heavy display fixtures
- Workshop and light manufacturing mobile equipment where a larger wheel diameter aids floor clearance
Mounting & Installation Guide
* Always ensure the combined load across all fitted castors does not exceed the per-castor rated capacity multiplied by the number of castors. For a four-castor configuration, the total equipment weight should not exceed 80% of the combined rated load to allow for uneven weight distribution.
Installation Steps
- Confirm the equipment base plate dimensions are compatible with the top plate hole centres specified for your chosen option (80mm × 60mm for 100mm; 85mm × 60mm for 125mm).
- Position the castor top plate flush against the underside of the equipment base, aligning the four bolt holes with the corresponding holes in the base.
- Insert M8 bolts (not supplied) through the 9mm holes and secure with appropriate nuts and washers, tightening to the equipment manufacturer’s recommended torque.
- Check that all four castors are seated evenly and that the swivel head rotates freely through 360 degrees before loading the equipment.
- Test the directional brake on each castor to confirm it engages and releases cleanly before placing the unit into service.
Frequently Asked Questions
Q: What is the difference between the 100mm and 125mm options, and how do I choose the right one?
The primary differences are wheel diameter, overall height, load capacity, and top plate dimensions. The 100mm option stands 128mm tall and is rated to 120kg per castor, making it well suited to lighter equipment and lower-profile applications. The 125mm option stands 155mm tall and is rated to 140kg per castor, offering greater load capacity and a slightly larger footprint, which is better suited to heavier trolleys and medium-duty industrial equipment. Choose based on the total weight of your equipment and the clearance height available beneath it.
Q: Will these castors mark or damage polished or hard floor surfaces?
No. The blue rubber tyre is specifically formulated to be non-marking on hard and smooth floor surfaces, including vinyl, laminate, tile, and sealed concrete. The rubber compound provides grip without leaving scuff marks or residue, making these castors suitable for use in retail, hospitality, and healthcare environments where floor appearance is important.
Q: How does the directional brake work, and does it lock both the wheel and the swivel?
Yes, the directional brake is a dual-action foot-operated mechanism that locks both the wheel rotation and the swivel head simultaneously when engaged. This prevents the castor from rolling or rotating in any direction, keeping the equipment completely stationary. To release, simply press the brake lever in the opposite direction with your foot. This type of brake is sometimes referred to as a total-lock or swivel-and-wheel brake.
Q: What bolt size and fixing method is required to fit these castors?
Both options use a standard four-hole top plate with 9mm diameter bolt holes. M8 bolts are the appropriate fixing size for these holes. The hole centres are 80mm × 60mm for the 100mm castor and 85mm × 60mm for the 125mm castor. Bolts, nuts, and washers are not supplied and should be sourced separately to match the thickness and material of your equipment base plate. Always use a locking nut or thread-locking compound to prevent loosening under vibration.
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