Abstract: A grinding machine for grinding an inner race of a constant velocity joint, which contains a grinding wheel with a concentric peripheral surface of boron nitride, and a device for rotating the grinding wheel at a speed of at least about 5,000 revolutions per minute. The machine also has a lubricating fluid injection system for lubricating the inner race and grinding bit. The machine also contains devices for moving the inner race in the X axis, in the Z axis, and simultaneously in the X and Z axes.

Abstract: A grinding bit for regrinding a component of a constant velocity universal joint which contains a grinding tip, an arbor, and means for removably attaching said grinding tip to said arbor.The arbor has a length of from about 2.0 to about 4.3 inches, the grinding tip has a length of from about 0.7 to about 1.9 inches, and the length of the arbor exceeds the length of the grinding tip by at least about 1.0 inch. The grinding has a head portion with a substantially arcuate shape and has a substrate coated with a abrasive material.

Abstract: A grinding machine for regrinding a housing of a constant velocity joint which contains a grinding bit, a high speed spindle, a lubricating fluid injection system, and devices for rotating the housing, for moving the housing in the X axis, for moving the housing in the Z axis, and for simultaneously moving the housing in the X and Z axes. The fluid injection system has two coolant nozzles with different volumetric flow rates.

Abstract: A grinding machine for several ball cages. The machine contains a grinding bit, a multiple cage holder in which several cages are disposed so that the centers of the windows of their cages are vertically aligned with each other, a device for moving the multiple cage holder in the Z axis, the X axis, clockwise, and counterclockwise, a lubricating fluid injection system, and a high-speed spindle.

Abstract: An adaptor for aligning the components of a constant velocity joint is disclosed. This adaptor is comprised of a base, a body attached to said base, a screw shaft disposed within said body, a left slide nut mounted on said screw shaft, a first annular peg mounted on said left slide nut, a right slide nut mounted on said screw shaft, a second annular peg mounted on said right slide nut, and rotatable adjustment means for moving said left slide nut and said right slide nut in opposite directions upon the rotation of said adjustment means.

Abstract: A grinding bit for regrinding a component of a constant velocity universal joint is disclosed. The grinding bit is comprised of a grinding tip, an arbor, and means for removably attaching said grinding tip to the arbor.The grinding tip consists essentially of a steel blank coated with abrasive substance. The grinding bit has a length of from about 2.0 to about 4.75 inches.

Abstract: A machine for regrinding components of a constant velocity universal joint is disclosed. The machine contains (1) a chuck mechanism and an adaptor for mounting a component in the chuck mechanism, (2) a grinding bit comprised of a grinding tip, an arbor, and means for removably attaching the grinding tip to the arbor, (3) a rotatable support means for supporting the chuck mechanism, (4) a high speed spindle, (5) a means for adjusting the position of the spindle in the Y axis to move the spindle in and out, (6) means for injecting nonaqueous lubricant onto the grinding bit, and (7) means for purifying contaminated nonaqueous lubricant.

Abstract: A method and a machine for grinding the components of a constant velocity universal joint of front wheel driven vehicles is disclosed wherein the method involves the grinding of the ball retaining grooves of the outer housing, inner race and outer race elements and the intermediate bearing retainer of the constant velocity universal joint to accommodate oversized replacement ball bearing. The machine is comprised of a rigid base, a component part holder movably supported to the base and moveable about an axis, a tool holder movably supported to the base and movable about at least on axis for accurately positioning a grinding tool within the grooves of the constant velocity joint members.