Pack the bearing immediately following cleaning, drying and inspection. Do not use an excessive amount of grease - be sure it is worked into every bearing space, but do not fill the hub with grease. Keep bearings clean, work on a clean bench and do not handle bearings with dirty or moist hands. When re-assembling check the bearing for proper seating. Check adjustments carefully.
Most vehicle manufacturers nominate a torsion wrench setting for bearing assemblies.
Use a torque wrench and do not exceed the manufacturers recommendation. Keep grease containers completely covered when not in use to avoid contamination. Do not mix different types of grease. Under no circumstances must lithium based multi-purpose grease be mixed with soda base wheel bearing grease or an adverse chemical reaction will occur. Carefully avoid contact of the packed bearing with dirt, dust, water or dirty hands.