Normally we prefer to produce worm wheel together with its mating worm shaft as complete meshing test between worm wheel and worm shaft is essential for us to verify tooth contact and guarantee final product quality. Without the matching worm shaft on hand, we cannot carry out this essential meshing test, which leaves potential risks on actual assembly performance. However, if with your existing worm shaft sample available, we are able to manufacture only worm wheel without worm shaft and run meshing test with your worm shaft sample. This way we can still check the mesh condition and secure the quality of the worm wheel.