lffghbhghyghggyg,aaaaaaaaaswdffcrgfrefvbfvbbbnbgbgrgWheels:Manufacturing & Mounting A positive engagement is required to effectively transmit torque from a shaft to a wheel A hexagon hole can be broached into pulleys or wheels and square orhexagon shafts can bethreaded! Press-fits, keys, or pins also transfer torque, and E-clips are a great way to retain thrust washers In production, a three lobe polygon is the best interface (see DIN standards) A wheel-on-shaft subassembly should overhang the gearbox as little as possible! If the overhung shaft has a lot of compliance, an outrigger bearing canbe added without overconstraining the shaft, if it confinesthe shaft to its nominal central position Beware of system deformations and the factthat they can take up all the clearance in a