Highly engineered in a variety of materials and heat treatment to meet
demanding mill applications
Optimized gear tooth design for maximized performance. CGGTM (contact
ground gearing) increases wear life and reduces tooth spalling.
Large lube capacity (LE/LB). Multiple lube port, rising ring design (ME/MB)
The evolution of gear spindle design During? the? mid? 60?s? KOP-FLEx ??? brand couplings? pioneered? the? use? of? gear spindles? in? hot? rolling? and? cold? rolling mills. Over the years the basic design has remained? constant? with? the? exception? of the tooth hardening processes. Original? designs? employed? high? carbon
steels? which? were? induction? hardened. The associated quench process resulted in distortion. To reduce the distortion, Nitriding was introduced. Nitriding provides a hard case? RC 55/64? and? very? little? distortion. ?
The? case? ranges? from? .015?? to? .030? (0.38-0.76mm).This? process? was? good for fine pitch gearing in bar, rod and cold mills. For roughing mill and hot strip mill spindles with course pitch teeth a deeper case is required. These spindles employ carburized gearing which produces deep cases .060? to .250? (1.5-6.4mm) RC 55/62. Again like induction hardening during the quench operation distortion occurs to the actual tooth and also pitch diameter.