Patent ID: 7665927

Claim:
A swivel joint for use as part of a cable-guided fishing assembly, the swivel joint comprising: a ball joint; a lower sub; a bearing assembly located between the ball joint and the lower sub, the bearing assembly allowing the lower sub to rotate, the bearing assembly comprising: at least one ball bearing; a circular inner race insert capable of withstanding compression against the ball bearing without yield, the inner race insert being adjacent to the at least one ball bearing, the inner race insert positioned such that the outer diameter of the inner race insert is aligned with the longitudinal center axis of the at least one ball bearing, and the inner diameter of the inner race insert is aligned with a tangential line extending from the innermost point of the at least one ball bearing; and a circular outer race insert capable of withstanding compression against the ball bearing without yield, the outer race insert being adjacent to the at least one ball bearing, the outer race insert positioned such that the inner diameter of the outer race insert is aligned with the longitudinal center axis of the at least one ball bearing, and the outer diameter of the outer race insert is aligned with a tangential line extending from the outermost point of the at least one ball bearing, wherein the inner race insert and the outer race insert exert a shearing force on the ball bearing when a tensile force is exerted on the swivel joint.