From size 25 to 63 the gears are always supplied in the Universal position and may therefore be mounted in virtually any position, from size 75 to size 130 if the position required differs from B3 it must be specified. In particular, in the event that a gear CHPC/CHM – WORM GEAR WITH PRE-STAGE MODULE constantly in place B3 is to be installed in positions V5 or V6, the bearing situated in the upper side should be lubricated using suitable grease that ensures correct lubrication. We have tested Tecnolubeseal POLYMER 400/2 grease.