Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 68
bearings wear, unless it is itself worn thesame amount. It is doubtful if this form ofgearing has any advantage over the plainspiral gearing, except when new and in per-fect adjustment. 123.—THE PEN WORM AND GEAR. If the hob and the worm are shaped bythe pin-shaped revolving milling tool b of JPin… … Fig. 102, the gearing produced will havelinear bearing between the teeth. The action will be the same as between aseries of pin teeth like the milling tool, eachpin being in the axial section of the worm,but having a linear bearing on the normalsection of its teeth. This form of gearing, which is…
Gearing
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