ESJOT is the exclusive OEM supplier for Aprilia, KTM, BMW and others for sprockets.
ESJOT, ESJOT- Antriebstechnik GmbH is one of Germany's leading sprocket manufacturers. For over 80 years ESJOT has been designing and manufacturing high end sprockets using the finest materials. All aluminum sprockets are made from 7075 T6 and are hard anodized. This will increase the lifetime of the sprocket significantly. The steel for counter shaft sprockets and rear sprockets meets or exceeds highest OEM requirements. The high tensile strength of this material guarantees extreme long life.
DIAMOND CUT revolutionizes the sprocket technology. In cooperation with the University of Paderborn Germany, ESJOT has developed a new process to cut the teeth of chain driven sprockets. "Diamond cut" is an innovative manufacturing process resulting in a visible higher quality sprocket than has been possible on standard milled sprockets. Special tooling guarantees a super accurate cutting surface. At the same time the material is highly condensed in the area of the teeth flanges, so that in many cases additional heat treatment is no longer necessary.
Counter Shaft Sprockets Highest quality steel Mn CR5 of OEM quality is precision cut on CNC machines. Cutting the teeth with our "Diamond Cut" process and case hardening of 700 HV40 (case depth of 0.4mm) meets the highest quality. Modern milling machines guarantee a perfect fit on the drive shaft with tolerances of overall diameter and wobble remaining under 0.1mm.
Sprockets (rear) Center holes are precisely cut on CNC machines with extremely low tolerances. Only special steel qualities "Qste 420" and "Qste 460" are used. Mounting holes are countersunk and cleaned. Teeth are cut with the new special procedure "Diamond Cut", with tolerances of overall diameter and wobble of below 0.2mm which guarantees super smooth running.