We offer both. If you have a complete drawing, we manufacture exactly as per your specification on drawings. If you only have basic parameters — such as center distance, ratio, and torque requirements — our engineering team can help you with gear design, including tooth profile optimization, material selection, and strength calculation. We also offer reverse engineering services for obsolete or worn gears. Simply send us your old gear or sample, and we will measure, model, and manufacture a replacement. Design assistance is available for potential projects.