Worm gears are proper angle drives that offer huge equipment ratios with comparatively limited center-to-middle distances from 1/4″ to 11″. When appropriately installed and lubricated, they serve as the quietest, smoothest-running equipment type. Since worm gear drives can accomplish high equipment ratios, maximum reduction can be attained in a scaled-down room than many other types of equipment drives. The worm and worm equipment operate at a 90° angle on non-intersecting axes.