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Description
100mm Pressed Steel Fixed Castor Wheel ? Black Polypropylene Wheel with Bolt-hole Top Plate ? 85kg Max Load
This 100mm fixed castor is a pressed steel top-plate unit fitted with a solid black polypropylene wheel, designed for reliable, straight-line mobility in demanding environments. With an 85kg individual load rating and a robust zinc-plated steel housing, it is the go-to choice for trolleys, industrial carts, shelving units, retail fixtures, and workshop equipment where directional stability and consistent performance are essential.
Key Features
- Fixed Castor Design ? Provides straight-line directional stability; ideal where swivel movement is not required.
- 100mm Black Polypropylene Wheel ? Lightweight yet durable; performs well on smooth, hard, and lightly textured floor surfaces.
- 85kg Individual Load Capacity ? Rated for demanding applications; supports up to 255kg across a set of three load-bearing castors.
- Pressed Steel Top Plate with Zinc Plating ? Corrosion-resistant housing ensures long service life in dry and light-duty industrial settings.
- 4-Bolt Hole Mounting?? Secure, four-point fixing for a stable, vibration-resistant installation on equipment frames and bases.
- Plain Bearing ? Low-maintenance rolling action suitable for moderate-speed, regular-use applications.
- 22mm Tread Width ? Balanced contact footprint for smooth load distribution across the wheel surface.
Applications
Warehousing & LogisticsPlatform trolleys, picking carts, and goods-movement equipment requiring directional control.
Retail & Display FixturesMobile shelving, gondola units, and display stands that need repositioning without swivel drift.
Workshop & Light IndustrialWorkbenches, tool carts, and equipment bases in manufacturing and maintenance environments.
Furniture & Home ProjectsDIY storage units, kitchen islands, and utility trolleys where a fixed wheel provides straight-line movement.
Technical Specifications
| Specification | Detail |
|---|---|
| Castor Type | Fixed (Non-Swivel) Top Plate Castor |
| Wheel Diameter | 100 mm |
| Wheel Material | Polypropylene (PP) |
| Wheel Colour | Black |
| Tread Width | 22 mm |
| Total Castor Height | 122 mm |
| Bearing Type | Plain Bearing |
| Individual Load Capacity | 85 kg |
| Max Load (Set of 4 Castors) | 255 kg * |
| Plate Length | 60 mm |
| Plate Width | 67 mm |
| Plate Hole Centres (Length) | 48 / 38 mm |
| Plate Hole Centres (Width) | 48 / 38 mm |
| Plate Hole Diameter | 6 mm |
| Bolt Holes | Yes |
| Housing / Plate Material | Pressed Steel, Zinc Plated |
* Max load of 255kg is calculated using three load-bearing castors. Always consult a qualified engineer for safety-critical load assessments.
Frequently Asked Questions
What is the difference between a fixed castor and a swivel castor?
A fixed castor is mounted in a set position and only allows movement in a straight line ? forward and backward. A swivel castor rotates 360? around its vertical axis, enabling multi-directional movement. Fixed castors are typically used in combination with swivel castors to provide both directional control and manoeuvrability on trolleys and carts.
Is this castor suitable for use on hard floors such as concrete, tile, or vinyl?
Yes. The solid polypropylene wheel performs well on smooth, hard floor surfaces including concrete, ceramic tile, vinyl, and sealed timber. It is not recommended for heavily uneven, soft, or outdoor terrain where a larger or pneumatic wheel would be more appropriate.
How do I calculate the correct number of castors for my application?
For a standard four-castor configuration, the safe working load is calculated using three castors (not four) to account for uneven floor surfaces and load distribution. With this castor rated at 85kg per unit, a set of four provides a practical working load of up to 255kg. For loads approaching this limit, always apply an appropriate safety factor and seek professional engineering advice.
What fixings are required to mount this castor?
This castor uses a bolt on the top side for fixing. The plate measures 60mm x 67mm with hole centres of 48/38mm and a bolt hole diameter of 6mm. Standard M6 bolts, washers, and locking nuts are suitable for most installations. Ensure the mounting surface is flat, structurally sound, and capable of supporting the intended load before fitting.
Sold individually. Prices shown are per castor. For trolley and cart builds, a typical configuration uses two fixed castors at the rear and two swivel castors at the front.
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