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