NEEDLE RETAINER FOR CONSTANT VELOCITY JOINT AND METHOD OF DETERMINING TRUNNION SHAPE

The invention discloses a constant velocity joint, a three-pivot joint and a method for determining a trunnion shape. The constant velocity joint includes a trunnion extending radially outwardly abouta trunnion axis. The joint also includes a ball surrounding the trunnion and rotatable relative thereto about a plurality of needle rollers. The joint further includes a retainer that is a single, unitary structure coupled to the trunnion and positioned to limit movement of the ball and the needle rollers in a direction parallel to the trunnion axis. 本申请公开了一种等速接头、三枢轴式接头和确定等速接头中的轴颈的形状的方法，其中等速接头包括轴颈，其围绕轴颈轴线径向向外地延伸。该接头还包括球，该球环绕该轴颈，并且能够围绕多个滚针相对于轴颈旋转。该接头进一步包括保持器，其是单个整体结构，该单个整体结构联接到轴颈，并被定位成限制球和滚针在平行于轴颈轴线的方向上的移动。