There are different scales which polyurethane and other rubber-like materials are measured under, including Shore A, Shore D, and Shore M, ranging from 0 to 100 points; the lower the number, the softer the hardness of the material on a given scale. Most conventionally molded polyurethanes typically lie in the Shore A and Shore D scales, with all of No-Crush Wheels residing in the Shore A scale. Below is a helpful chart to give you some real-world examples of what is comparable to the different hardnesses of Shore A and Shore D materials. While six-wheel drive has been seen as the next logical step after 4x4 for off-road traction – and likewise eight-wheel drive surely must be even better? – our choices don't just lie in the field of off-roaders. There have been a handful of six-wheeled supercars, although these haven't really got past the concept stage, while six-wheel racing cars have had limited success, even in Formula One. Warning: This can be slightly confusing, if you know your wheels width you’re welcome to use our wheel offset calculator for a more simplified solution. Soft Tread Wheels – such as Solid Rubber Wheels, Pneumatic Rubber Wheels, High Temperature Rubber Wheels and Polyurethane Wheels. Soft Tread Wheels are generally kinder to the floor surfaces, make less noise and some are even non marking rubber wheels. Polyurethane wheels tend to sit in-between the two types of wheels, as they have a hard nylon, cast iron or aluminium centre with a softer polyurethane tyre bonded on. This makes the polyurethane wheels some of the most versatile wheels in the range. Think of it like this, if you hold an apple in your hand and close to your body you can do so for an extended period of time with minimal strain, now imagine holding a watermelon with one hand with your arm fully extended horizontally to your side.

High Temperature Wheels – we offer a range of hard tread phenolic resin temperature resistant wheels along with a soft tread high temperature rubber wheels. Technically speaking, a Durometer is a 'Duro-Meter' which is a device that is utilized to measure the hardness of something. However speaking more conventionally, Durometer is also used as a unit of measure for the hardness of softer materials. For No-Crush Wheels and other molded polyurethane rollers, idlers, and wheels, it is effectively how hard or soft the polyurethane which is bonded to the surface really is.

Tyrrell P34

This is a very common question related to selecting a No-Crush Wheel, but perhaps the most challenging one to answer accurately! And nothing is more utilitarian than the six-wheeled derivative designed for the Australian Army (and later used by the Finnish Defence Forces), which boasted a huge payload of 3,000kgs, and could be used to transport troops, cargo or artillery on long range reconnaissance missions. Delivered from 2012, they were powered by 187PS (137kW) Mercedes-Benz 3.0-litre turbocharged diesel engine, mated to an automatic gearbox with full-time all-wheel drive. NoCrushWheels.com relies on the engineering expertise and manufacturing excellence of its parent company, Meridian Laboratory, Inc. who has been a manufacturer of standard and custom molded polyurethane drive wheels, polyurethane idler wheels, polyurethane coated cam followers, polyurethane coated bearings, robotic gripper fingers, and more since 1963. Wheels are essential parts of a car, and alloy wheels are essential styling parts which make the difference between ordinary and show-stopping. Available in all kinds of colours and designs, alloy wheels are a sure-fire enhancement to make sure your car stands out from the crowd.

What is the overall diameter of the wheel? (From outside edge to outside edge) Diameter of the Hub Bore Tread Width – is the width of the wheel that touches the floor surface. Different types of wheel have differing tread widths. Wide tread wheels are ideal for outdoor environments.

How to measure your Castors

Whether at tradeshows, during phone calls, or in-person visits - we hear these types of spoked wheels get called all kinds of different things. About the only thing consistent about their inconsistent naming convention is that the names typically have less to do with their shape, and more about where they are used and what they do. This makes it one of the smaller trolleys reviewed today, and great for those who only do small shopping trips or want to save storage space at home. The tri-wheel configuration allows you to easily navigate through stairs, cobblestones, lawns, crosswalks, or on any uneven pathways.

Top tip! Dividing your total load by 3 allows for a margin of safety, and this will give you the maximum each castor can carry in a safe working environment, allowing for uneven floor surfaces. 7 . Other Considerations that may affect your choice? While the P34 pioneered the twin front-axle design, it wasn’t the only six-wheeler to grace Grand Prix circuits. Other manufacturers saw the promise in Gardner’s work and followed suit, moving the extra set of wheels to the rear of the vehicle. Nevertheless, estimating how long a No-Crush Wheel will last in your application is still a challenge due to the wide range of applications and use cases, and subsequent variables that exist. Generally speaking, the polyurethane durometer, application force / pressure (load), speed, environmental factors, and rotations (cycles) will influence how long a No-Crush Wheel will last in an application. Outside Diameter: All Zero Crush Wheels are molded exactly to size and dimension, using NoCrushWheels.com's time-proven techniques and methods to guarantee maximum quality. Molding No-Crush Wheels guarantees the exact same size and properties between wheels and batches - time and time again. To generate a custom outside diameter for a No-Crush Wheel involves producing tooling to this exact dimension and generally starts to make sense for estimated annual usage of 100+ No-Crush Wheels per year.

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Determine your centerline, this is your wheels width divided by two being the dead center of your wheel. No-Crush Wheels are incredibly versatile in how they can be used in applications, and below are just a few examples of how they are used and potentially some insight on where this growing list of names may have stemmed from. The wheels are strong and sturdy, making it super easy to roll the trolley up and down stairs and on curbs. For the bag itself, look for features such as a large volume capacity, water-resistant capabilities, and thermal insulation. It’s 44L capacity bag also comes with an insulated 5L cooling bag, a front zippered compartment, and an umbrella holder.