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The Rj-35 used a Clinton B-1200 engine with a belt driven transmission. When equipped with a Briggs & Stratton 2.5 horsepower (1.9 kW) engine, the model of the tractor became RJ-25. The attachments remained the same for the RJ series. From 1956-1957, wheel horse changed the color of the wheels from black into an almond color.
Equivalent pitch radius is the radius of the pitch circle in a cross section of gear teeth in any plane other than a plane of rotation. It is properly the radius of curvature of the pitch surface in the given cross section. Examples of such sections are the transverse section of bevel gear teeth and the normal section of helical teeth.
One type of reel mower, now largely obsolete, was a powered version of the traditional side-wheel push mower, which was used on residential lawns. An internal combustion engine sat atop the reel housing and drove the wheels, usually through a belt. The wheels in turn drove the reel, as in the push mower.
The open belt drive has parallel shafts rotating in the same direction, whereas the cross-belt drive also bears parallel shafts but rotate in opposite direction. The former is far more common, and the latter not appropriate for timing and standard V-belts unless there is a twist between each pulley so that the pulleys only contact the same belt ...
Their mowers are limited to a stock lawn mower engine with a governor set to no more than 3650 rpm and a 10:1 gear ratio. Adult classes are split by running time trials. Time trials are set up like a qualifying run in NASCAR. A-Class is the mowers that run the fastest times. D-Class is the mowers that run the slowest during time trials.
Toothed belts are used widely in mechanical devices, including sewing machines, photocopiers and many others. A major use of toothed belts is as the timing belt used to drive the camshafts within an automobile or motorcycle engine. As toothed belts can deliver more power than a friction-drive belt, they are used for high-power transmissions.
The patented system had a driven front wheel that was capable of turning 360 degrees. The wheel was driven by the motor in the same direction at all times. In order to reverse or utilize the zero-turn capabilities, the driver simply turned the steering wheel 180 degrees and the mower would move backwards.
It is a stepless, fully-automatic transmission, consisting of a V-shaped drive-belt, and two pulleys, each of two cones, whose effective diameter can be changed so that the "V" belt runs nearer the spindle or nearer the rim, depending on the separation of the cones. These are synchronized so that the belt always remains at the same optimal tension.