Universal joint

A universal joint comprising:

• a first yoke fittable to a drive shaft, the first yoke being fitted through splined engagement to an end of the drive shaft for integral rotation,
• a first pin provided for the first yoke with its axis intersecting the axis of the first yoke at right angles thereto, the first pin being supported integrally by the first yoke and having a trunnion of a large diameter at each of its opposite ends,
• a second yoke fittable to a driven shaft, the second yoke being fitted through engagement between an oval-shaped bore and a corresponding part of an end of the driven shaft for integral rotation,
• a second pin provided for the second yoke with its axis intersecting the axis of the second yoke at right angles thereto, the second pin being supported integrally by the
• second yoke and having a trunnion of a large diameter at each of its opposite ends,
• a connecting member disposed between the first and second pins, the connecting member positioning the first and second pins with their axes intersecting the axis of the connecting member as spaced apart from each other by a desired amount of offset and at right angles on the axis of the connecting member,
• two bearing cases each fitting to each of the trunnions of the first pin with a bearing member interposed therebetween, the bearing cases being mounted on and secured by a plurality of bolts to one end face of the connecting member and positioning the first pin on that one side of the connecting member, and
• two bearing cases each fitting to each of the trunnions of the second pin with a bearing member interposed therebetween, the bearing cases being mounted on and secured by a plurality of bolts to the other end face of the connecting member and positioning the second pin on that other side of the connecting member.