ADRIATIC posted
The type of worm&gear is also important. Even with the right tooth count and o.d.s, tooth face type must be matched right, to mesh right. e.g. some gears are not beveled, but the teeth are at an angle to the axle while others are parallel to the axle. Though each worm may seem identical at first glance, they are not the same.
This is the reason I mentioned about the gear boxes being different with different types of bearings, the possibility of the worms being different.
Ray
