Worm Gear Boxes

Technical Specifications

• The casing is made of closely grained FG-260 Grade C.I.
• The gear box is provided with amply designed fins with suitable fan for adequate dissipation of heat generated.
• The entire design is based on BS 721:1963 to accuracy class A.
• The gear box design is such that it is interchangeable with the standard gear boxes.
• The worm shaft is of high quality case hardening steel very accurately generated and ground finished for better performance.
• The worm wheel is made of extremely high quality phosphor bronzes sandwich cast / spin cast with considerably substantial section, rigidly bonded with the hub.
• Both worm and worm wheel shafts are mounted on high quality taper roller / angular contact bearings to take care of axial thrust and overhung loads.
• Subject to the limitation of 90°C temperature, under full load, Fenner gear box will provide minimum gear life of 20,000 Hrs. The gear box requires absolutely no attention, except to check the oil level once every fortnight.
• Fenner worm gear box is available with ratios of 5:1 TO 70:1.