Profile: J. V. Engineers is a manufacturer, supplier, and exporter of gears, bevels, and pinions. Our products include helical gears, hard & grounded gears, profile ground gear, profile ground gear pinion, helical gear pinion, hard & ground gear pinion, spur gear, hard & ground helical gear, hard & ground spur gear, helical gear shaft, worm wheel, worm wheel gear, worm shaft, hard & ground worm shaft, cast iron worm gear, and phosphorus bronze worm gear(wheel). We are an ISO 9001: 2008 certified company. Helical gears are required to be cut at a particular angle to the face of the gear. Two touching helical gears need to have equal helix angle, but contrasting hand. This helps them to run smoothly and fluently, and also prevents noise pollution. They can also be used to mesh two shafts which are not parallel with each other, and between two perpendicular shafts.