Profile: Hewitt & Topham Ltd. is a manufacturer of quality precision cut gears. We are certified with BS EN ISO 9001:2000 certification. We have a wide range of standard and non-standard cutter pitches & pressure angles cut gears. We specialize in providing gear cutting and precision engineering services. Our spur gears are those that have the teeth cut parallel to the axis of the shaft. Spur gearing is used over a wide range of applications from small watches & meters, gear trains on machine tools, in gear boxes fitted to motorcars & aero-engines, to large drives found in rolling mills and on board a ship. Our double helical gears can replace spur gears without alteration to the end thrust bearings. Our bevel gears feature in a large number of drives including the differential gearing fitted in the rear axle of cars, and the drive from the main shaft to the back shaft. They are also used on the drive of many machine tools. We also provide worm gears. Worm gear drive has many uses; namely, for reducing gear unit between a high-speed motor and a line shaft, indexing mechanism on a number of machine tools, and in the rear drive of a vehicle.