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