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This 4″ (approximately 102 mm) ergonomic donut fixed castor is designed for smooth, dependable... Read Full Description
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This 4″ (approximately 102 mm) ergonomic donut fixed castor is designed for smooth, dependable straight-line movement under heavy loads in industrial and commercial environments. With a load capacity of up to 317 kg per castor, it’s ideal for heavy trolleys, equipment carts and mobile platforms that require strong support and stable performance.
The ergonomic polyurethane donut wheel delivers excellent shock absorption, low rolling resistance and superior protection for floor surfaces. Its performance remains reliable across a wide temperature range from –20 °C to +80 °C, making it suitable for use in a variety of work environments. Built with a ball journal bearing, this castor ensures smooth rolling action under load with minimal effort.
General
Castor Type: Fixed Top Plate Castor
Bearing Type: Ball Journal
Maximum Load Capacity (per castor): 317 kg
Maximum Load Capacity (4 castors): 951 kg
Colour: Orange
Wheel Details
Wheel Diameter: 4″ (102 mm)
Tread Width: 50 mm
Wheel Material: Ergonomic Polyurethane (Donut)
Tread Hardness: 87 Shore A
Temperature Range: –20 °C to +80 °C
Mounting & Dimensions
Plate Length: 114 mm
Plate Width: 102 mm
Hole Centres: 92/75 mm × 75/67 mm
Plate Hole Diameter: 10 mm
Total Castor Height: 143 mm
Performance
Smooth, low-resistance rolling with good shock absorption
Donut wheel design for floor protection and debris clearance
Stable, fixed movement for heavy loads
Typical Applications
Industrial trolleys and carts
Equipment transport and handling
Warehouse and factory floor movement
Material handling systems
Ross Handling supplies engineered castor solutions built for durability, performance and ease of use. This 4″ ergonomic donut fixed castor with a polyurethane wheel and ball bearing offers smooth, stable movement and excellent load support — making it a dependable choice for heavy-duty industrial and commercial handling tasks.
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Top Plate Castors |
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Ball Journal |
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317 |
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50 |
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-20 min to +80 max |
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87A |
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951 |
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114 |
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102 |
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92/75 |
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75/67 |
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10 |
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143 |
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Orange |
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4" |
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Ergonomic Polyurethane |
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For a more detailed view of our delivery charges please visit our UK Delivery & Returns or International Delivery & Returns page.
Please note that our standard shipping rates do not apply to tubing orders. Tubing has its own unique shipping rate, which is automatically calculated at checkout. We've tailored these rates to ensure the best possible delivery service for these items!
Please note final delivery cost is calculated at checkout based on order weight and destination.
| Delivery Option | Delivery Cost (£) |
|---|---|
| 2 Working Days Express Pack (for small orders) | £7.49 |
| 2 Working Days | From £9.49 |
| Next Working Day | From £12.49 |
| By 12 PM Next Working Day | From £17.49 |
| By 10:30 AM Next Working Day | From £23.49 |
| Saturday Delivery | From £19.49 |
| 3 Day Pallet Delivery (for large orders) | £100 |
Please note delivery costs for Northern Ireland, Highlands, and Islands vary based on location and order weight.
| Delivery Option | Delivery Cost (£) |
|---|---|
| Northern Ireland (2-3 working days) | From £18.49 |
| Scottish Highlands (2-3 working days) | From £20.49 |
| Isle of Man (2-3 working days) | From £20.49 |
| Channel Islands (2-3 working days) | From £20.49 |
Please note that the following postcodes in the Highlands and Islands of Scotland incur additional delivery charges due to their remote locations and the higher shipping costs associated with these areas.
Postcodes affected include:
AB31-AB56
FK17-FK21
HS1-HS9 (Outer Hebrides)
IV (Inverness and surrounding areas)
KA27-KA28 (Isle of Arran and Cumbrae)
KW (Kirkwall and Orkney)
PA20-PA78 (Argyll and Bute, Inner Hebrides)
PH15-PH50 (Perthshire and the Highlands)
ZE1-ZE3 (Shetland Islands)
These areas are subject to a delivery surcharge due to increased transportation costs and extended delivery times. We strive to keep our delivery charges as competitive as possible and appreciate your understanding when shipping to these regions.
For more information or to get a specific delivery quote, please contact our customer service team.
If you're not satisfied with your purchase, ordered the wrong size, or find the items unsuitable, return them within 28 days along with the delivery note and a brief explanation for a refund or exchange. Please contact us before returning items to ensure eligibility. Note that we cannot refund items damaged through use.
We recommend using a recorded and insured delivery method for returns, as we're not responsible for goods lost or damaged in transit. Keep proof of postage. Refunds typically do not cover original delivery costs, and returns of sack trucks, trolleys, and mobile steps may incur a restocking fee.
For full terms and conditions click here.