Spindle or worm drive for adjustment devices in motor vehicles

A method for manufacturing a spindle or worm drive for adjustment devices in motor vehicles, with at least one of a fixed spindle and a fixed toothed rack which is fixed on a first of two parts which can be moved relative to a second of the two parts, with a gear mechanism which is connected to the second of the relatively movable parts, and with a gear housing for receiving the gear mechanism, wherein the gear housing is enclosed free from backlash and able to pivot about at least one axis by a bearing shell,

• wherein gear elements after their connection with one of the spindle and toothed rack are inserted into a housing shell of the gear housing and are connected to a drive element of a motor shaft, wherein a gear cover is connected to the housing shell of the gear housing to close up the gear mechanism, wherein the finished made gear housing is enclosed free from backlash by the bearing shell, wherein as gear housing is used a housing having at least one of a concave and convex housing part, and the bearing shell has at least a convex and concave bearing shell section, and wherein the gear housing is surrounded by the bearing shell in that at least two bearing plates of the bearing shell are adjusted and fixed without play relative to the gear housing, and
• wherein the bearing plates are pushed from both sides through window-shaped through openings onto the spindle, side arms of the bearing plates are pushed into each other until the concave and convex bearing shell sections of the bearing plates bear free from backlash against the concave and convex housing parts of the gear housing, and wherein abutting side edges of the side arms of the bearing plates are connected together by laser welding at least over a part of their length.