Constant Velocity Joint Fix 3D model

cgtrader

It's no secret that the spline connection between the intermediate shaft and internal joint on Mazda Capella family cars (and others) is a trouble spot, with increasing mileage causing vibrations when accelerating at different speeds. These vibrations are caused by wear on the outboard bearing and increased concentric play in the spline joint of the camshaft and internal joint. Typically, axial backlash is practically absent or present to a very small extent, but radial misalignment of the shaft and internal joint axes can occur within large limits, sharply increasing the load on the outboard bearing and causing its premature wear, resulting in vibrations due to this misalignment. For the most part, the wear occurs in promval, not tripod, which brings more problems because finding promval is very difficult in the neighborhood. The contract price of the kit ranges from 5 to 30 thousand, plus waiting time, which is not very nice. This problem has not spared my father, who owns a Mazda Capella and caught up with him at the wrong time. We decided to think about it and solve it once and for all without compromising maintainability. An initial analysis of the Internet showed that the most common method of repair is the needle and welding method, but in this case, we lose the ability to replace the outboard bearing and joint, which is not ideal. Therefore, we decided to do everything our way, similar solutions were found, but there are few descriptions, so I offer my own solution to the problem. On the promval protective surface with a diameter of 26 mm, a depth of the snap ring groove is 9 mm, shaft end tapped M8 x 0.75 to a depth of 15-20 mm. From the body of the plug, remove the tripod for centering the joint and the shaft. A centering sleeve is made, the sleeve sits with tension on the ground surface of the shaft and its external surfaces, also with tension, mating with the body of the joint, in the place where the plug was, the sleeve material is alloy steel. Next, everything is assembled in the usual order and attracted by a high-strength bolt with a washer. Radial loads are perceived by the centering sleeve, and the connection is fixed by tightening the bolt. At the same time, there is free access to the outboard bearing and joint replacement. Note: All dimensions in the drawings are strictly for reference and may differ from yours. I recommend that you process the parts directly after measuring your components and adapt the centering sleeve to fit your dimensions.