parts engineering john deere autoglass couplings gears proximity indexing gear boxes jewelry motors accessories machine shop belts machining industrial driveshafts photoelectric bags optical sensors hose inductive sensors light curtains engines control drivelines inductive conveyor photoelectric sensors cnc machining gearbox cad automation your keywords laser milling engine bearings capacitive sensors bushings add repair fabrication belting cnc auto glass bearing fittings gear auto glass repair