Our Clients
- Load per castor140kg
- Wheel diameter100mm
- WheelGrey Cast Iron
Estimated UK delivery in 4–10 working days
Orders placed before 5pm (Mon–Fri) start processing the same day.
Flat £9.99 delivery per order, however many you buy.
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- 14-day returns on unused items
- UK-based castor advice
Specifications
- Castor Type
- Fixed (Non-Swivel)
- Wheel Diameter
- 100mm
- Wheel Material
- Grey Cast Iron
- Wheel Colour
- Grey
- Tread Width
- 30mm
- Wheel Hardness
- 85 Shore A
- Bearing Type
- Ball Journal Bearing
- Housing / Plate Material
- Pressed Steel (Zinc Plated)
- Mounting Type
- 4-Bolt-Hole Top Plate
- Top Plate Dimensions
- 100mm x 85mm
- Hole Centres (Length x Width)
- 80mm x 60mm
- Hole Diameter
- 9mm
- Total Height (Overall)
- 127mm
- Load Capacity (Single Castor)
- 140kg
- Max Load (4-Castor Configuration)
- 420kg
- Surface Finish
- Zinc Plated
Load check
Enter the weight of the item plus its heaviest load. This castor is rated 140kg each.
How we work it out: on a real floor one castor is often carrying little or nothing, so we share the weight across one fewer castor than you fit (with 3 castors, across all 3). Tick the box to add a 30% margin for rough use.
Floors & use
Cast iron / steel wheel
- Carries very heavy loads
- Tolerates heat and sharp debris
- Suits concrete, steel and foundry floors
- Noisy
- Will mark or damage finished floors
Details & FAQs
100mm Pressed Steel Fixed Castor — Grey Cast Iron Wheel & 4-Bolt-Hole Plate — 140kg Load Capacity
A precision-engineered fixed castor built for demanding industrial and commercial environments. Constructed from heavy-gauge pressed steel with a grey cast iron wheel, this castor delivers consistent, reliable directional movement under substantial loads — making it the preferred choice for equipment that requires stability over manoeuvrability.
This fixed castor is designed for applications where straight-line movement and structural rigidity are paramount. The grey cast iron wheel offers excellent resistance to deformation under sustained load, while the pressed steel housing provides a robust, long-lasting frame. Suitable for use on hard, smooth, and semi-smooth floor surfaces across warehousing, manufacturing, retail, and hospitality settings.
Key Performance Features
- 140kg load capacity per castor — supporting up to 420kg across a standard 4-castor configuration
- 100mm grey cast iron wheel for superior durability and resistance to deformation under sustained load
- Heavy-gauge pressed steel housing with zinc-plated finish for corrosion resistance
- Ball journal bearing for smooth, low-friction rotation and consistent rolling performance
- 4-bolt-hole top plate for secure, stable mounting to equipment frames and bases
- Fixed (non-swivel) design ensures straight-line directional control — ideal for guided trolleys and fixed-leg equipment
- 85 Shore A wheel hardness — optimised for hard and semi-smooth floor surfaces
- 30mm tread width provides a stable contact footprint and even load distribution
Technical Specifications
Typical Applications
Warehousing & Logistics Fixed castors for warehouse trolleys, picking carts, and goods-movement equipment requiring straight-line tracking.
Manufacturing & Workshop Ideal for workbenches, machine bases, and fabrication trolleys where directional stability under load is essential.
Retail & Display Suitable for heavy display units, shelving systems, and retail fixtures that require secure, fixed-position mobility.
Hospitality & Facilities Used on service trolleys, catering equipment, and facilities management carts across hotels, venues, and institutions.
Frequently Asked Questions
What is the difference between a fixed castor and a swivel castor?
A fixed castor is mounted in a stationary position and only allows movement in a single, straight-line direction. A swivel castor rotates 360 degrees, enabling multi-directional movement. Fixed castors are typically used in combination with swivel castors — for example, two fixed at the rear and two swivel at the front — to provide both directional control and manoeuvrability. For equipment that travels in a straight line only, all-fixed configurations are common.
What floor surfaces are grey cast iron wheel castors suitable for?
Grey cast iron wheels perform best on hard, smooth, or semi-smooth floor surfaces such as concrete, stone, ceramic tile, and sealed screed. They are not recommended for use on soft flooring, delicate surfaces, or floors where noise reduction is a priority, as cast iron wheels are rigid and can mark or damage softer materials. For sensitive floors, a rubber or polyurethane wheel would be more appropriate.
How do I calculate the correct load capacity for my application?
To calculate the required load capacity per castor, divide the total weight of the loaded equipment by the number of castors, then apply a safety factor of approximately 1.3 to 1.5 to account for uneven load distribution and dynamic forces during movement. For example, a 300kg trolley on 4 castors requires each castor to handle at least 75kg — but with a safety factor, a 140kg-rated castor is the appropriate choice. This castor supports up to 420kg across a standard 4-castor configuration.
What does the 4-bolt-hole plate measurement mean and how do I check compatibility?
The 4-bolt-hole plate refers to the top mounting plate with four fixing holes arranged in a rectangular pattern. The key measurements are the hole centres — the distance between the holes measured centre-to-centre — and the hole diameter. For this castor, the hole centres are 80mm (length) x 60mm (width) and the hole diameter is 9mm, on a plate measuring 100mm x 85mm. To confirm compatibility, measure the existing bolt pattern on your equipment and match it to these dimensions before ordering.
Delivery & returns
£9.99 flat rateOne charge per order to any UK address.
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14-day returnsUnused items in original packaging, agreed with us first. Refund policy
Need it sooner?Call 01282 270214 before ordering and we will check what is possible.
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