Methods of repairing a torque converter that enable the continued use of a torque converter and result in a repaired torque converter with a higher-strength and more durable construction. In some examples, a backing ring can be replaced with a replacement backing ring that includes a spline ring for replacing the function of a cover spline ring. In some examples, a method of repairing a torque converter can be improved by providing a replacement backing ring with a radial protrusion for locating the backing ring on the cover, and a method of determining an axial location of the radial protrusion.

A gearbox repair assembly is disclosed herein. The gearbox repair assembly includes a sleeve having an inner diameter configured to receive a bearing assembly and an outer diameter configured to fit within a bore of a gearbox housing. The gearbox housing can be part of a gearbox of a wind turbine. The gearbox repair assembly further includes a retaining plate configured to be attached to the gearbox housing for preventing an outer race of the bearing assembly from rotating in the bore relative to the gearbox housing. Also provided are methods to repair such a gearbox. The gearbox repair assembly and related methods reduce the time and cost needed to repair the gearboxes.

A linear fixed shaft drive assembly for use in a self-stacking industrial/commercial-grade spiral/gyro oven or freezer that includes a fixed, non-rotatable shaft having a cylindrical mounting portion, a bearing cup supported by the mounting portion, and a hub and shaft base that includes a shaft portion and flange portion. The flange portion is configured to couple to a first side of a flange extending from the bearing cup. A sprocket is mounted to an opposite second side of the flange extending from the bearing cup. The sprocket includes teeth configured to engage with a ball chain assembly of the oven or freezer. The bearing cup includes at least two permanently lubricated bearings. Rotation of the shaft portion of the hub and shaft base causes the bearing cup and sprocket to rotate on the mounting portion of the fixed, non-rotatable shaft. Also a method for retrofitting an oven or freezer having an existing shaft assembly mounted within a thermal chamber of the oven or freezer, and a method for servicing an oven or freezer having an existing linear fixed shaft drive assembly.

A clutch D hub for a transmission having first and second clutch packs and a shaft. A drum has a bottom wall and a sidewall extending therefrom. The bottom wall has an opening and the sidewall has splines formed in an inner surface that extend from an upper edge toward the bottom wall. The splines are engageable with the first clutch pack during operation. A spline hub formed separately from the drum has a top wall and a skirt extending therefrom. The top wall of the spline hub is coupled to the bottom wall of the drum to be non-rotatable relative thereto, so an opening in the top wall coaxially aligns with the opening in the bottom wall of the drum so the shaft is receivable therethrough. The spline hub has axially oriented splines formed in an outer surface, which are engageable with the second clutch pack during operation.

A gearbox repair system includes at least one repair tool and a controller. The controller is configured to control the at least one repair tool to repair a gearbox housing including a first housing body and a second housing body by: controlling the at least one repair tool to repair the first housing body at a first hole of the first housing body by removing a first body material of the first housing body at the first hole, controlling the at least one repair tool to identify a first actual position of the first hole, identifying a compensation vector for the first hole based on the first actual position and a first reference position for the first hole, and controlling the at least one repair tool to repair the second housing body at a second hole of the second housing body by removing a second body material at the second hole such that a second actual position of the second hole is offset from a second reference position of the second hole by the compensation vector.

An automatic transmission device comprises a flat steel plate for placing in between an automatic transmission pump body and an automatic transmission bellhousing that supports both rotating pump gears and completely encloses said gears within pump housing, and eleven holes, the device configured so that seven holes are for pump mounting bolts, three holes are for fluid passage that directly mimic the size, shape, dimension and position of the holes in the pump body, and one center hole for pump gear operation.

A gearbox may include a gearbox case with a wear sleeve disposed within a shaft bore, and a gear assembly mounted on a shaft and disposed within the shaft bore. The gear assembly may include a bearing that engages the wear sleeve. A method of repairing a gearbox case may include uncoupling a top piece and a bottom piece of the gearbox case, forming an oversize bore in a shaft bore of the gearbox case to remove a damaged area, and installing a wear sleeve in the oversize bore.

A gearbox may include a gearbox case with a wear sleeve disposed within a shaft bore, and a gear assembly mounted on a shaft and disposed within the shaft bore. The gear assembly may include a bearing that engages the wear sleeve. A method of repairing a gearbox case may include uncoupling a top piece and a bottom piece of the gearbox case, forming an oversize bore in a shaft bore of the gearbox case to remove a damaged area, and installing a wear sleeve in the oversize bore.

A method of exchanging a rack of a rack and pinion drive arrangement, and associated jig assembly, are disclosed. The method includes providing a rack and pinion drive arrangement, with a first rack installed in meshing engagement with the pinions of the gearbox; providing a jig assembly comprising a second toothed rack and a coupling arrangement; arranging the second rack in longitudinal coaxial alignment with the first rack; connecting a first end of the second rack to a proximal end of the first rack, via the coupling arrangement; bringing the second rack into meshing engagement with the pinions of the gearbox by linear displacement of the first and second rack, disconnecting the first rack from the second rack. The nominal rotational position between the respective pinions and primary gears may be calibrated either when the first or the second rack is in meshing engagement with the pinions of the gearbox.

A method of exchanging a rack of a rack and pinion drive arrangement, and associated jig assembly, are disclosed. The method includes providing a rack and pinion drive arrangement, with a first rack installed in meshing engagement with the pinions of the gearbox; providing a jig assembly comprising a second toothed rack and a coupling arrangement; arranging the second rack in longitudinal coaxial alignment with the first rack; connecting a first end of the second rack to a proximal end of the first rack, via the coupling arrangement; bringing the second rack into meshing engagement with the pinions of the gearbox by linear displacement of the first and second rack, disconnecting the first rack from the second rack. The nominal rotational position between the respective pinions and primary gears may be calibrated either when the first or the second rack is in meshing engagement with the pinions of the gearbox.