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The small rail wheels fitted to road–rail vehicles allow them to be stowed away when the vehicle is in road-going mode. Wheels used for road–rail vehicles are normally smaller than those found on other types of rolling stock, such as locomotives or carriages, because the wheel has to be stowed clear of the ground when the vehicle is in road-going mode.
The rails generally slant inwards at 1 in 40, a lesser angle than the wheel cone. Without the conical shape, a wheel would tend to continue in a straight path due to the inertia of the rail vehicle, causing the wheelset to move towards the outer rail on the curve. The cone increases the effective diameter of the wheel as it moves towards the ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
A roller chain connected the transmission to the rear axle. Timken roller bearings, 16-inch (410 mm) insulated wheels, and cast iron four-wheel brakes, were standard, adding up to a weight of 895 pounds (406 kg) without a cab. The 57W contained an air-cooled Wisconsin 4-cycle 1-cylinder motor, rated at 9.2 horsepower (6.9 kW).
The most usual cause of damage is drag braking on severe gradients.Because the brake blocks apply directly on the tire, it is heated up, relaxing the interference fit. It is not feasible to fit the tire with such a heavy interference as to eliminate this risk entirely, and the retaining ring will ensure that the tire can only rotate on the wheel center, maintaining its alignment.
Paper car wheels were composite wheels of railway carriages, made from a wrought iron or steel rim bolted to an iron hub with an interlayer of laminated paper. [1] The center was made of compressed paper held between two plate-iron disks. [2] Their ability to dampen rail/wheel noise resulted in a quiet and smooth ride for the passengers of ...
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