ZLYJ series Single Screw Extruder Gearbox Product Description ZLYJ series Gearboxes for Single Screw Extruders are a kind of special gearboxes researched and developed by importing the most advanced technology of the hard tooth surface in the world. For recent ten years, they are widely used in top and middle grade plastic, rubber and chemical fiber extruders, sell well in domestic and overseas, and it has a higher reputation in the industry. Product Feature 1.The whole machine looks beautiful and liberal, and can be both vertically and horizontally. It can suit multiple requirement of assembling. 2.The gear data and box structure are optimally designed by the computer. The gears are made of top grade low carbon alloy steel with Grade 6 precision of teeth after carbon penetrating, quench and teeth grinding. The hardness of the teeth surface is 54-62 HRC. The gear pair has stable running, low noisy and has high driving efficiency. 3.The assembling connector has the precision of radial run-out and end face run-out at international level, and can be easily connected with screw rod of the machine barrel. 4.The bearing structure of the output shaft has a unique style, which can effectively prolong service life of the bearings. 5.All standard parts such as bearing, oil seal, lubricant oil pump etc. are all top quality products selected from domestic famous manufacturers. They can be also selected from imported products as per requirement of customer.