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