DOUBLE FACE-TYPE PIN-WHEEL WORM GEARING

Worm 1 rotates about fixed axis A-A and its threads mesh with pins a and b of pin wheels 2 and 3 which rotate about fixed axes B and C. Pins a and b are designed as rollers located on the end faces of wheels 2 and 3, and can rotate about their axes, thereby substantially reducing friction losses in the gearing. Axes B and C are parallel to each other and are perpendicular to, but do not intersect,…