flender planetary gearbox catalogue pdf H3-DH-25-D Helical speed reducers H3

Flender/Flender Gear Units/Helical speed reducers H3

ear machinists 3 2.1 5.8 2.2 0.9 Tooling personnel 4 1.5 4.8 3.8 7.9 Heat treatment personnel 4 1.2 4.9 3.8 3.1 Gear product assembly 3 3.5 3.9 2.7 3.9 inspection personnel 3 2.0 4.2 2.9 2.9 Source: Complied from data submitted in response to questionnaires of the .. International Trade Commission. one employer hoped that new employee ownership and involvement program would increase the company' retention rate. Several expected the nonavailability and inadequacy of vocational programs to continue and some were planning to increase in-house programs to upgrade the skills of current semi-skilled employees. Manufacturing Operations of .. Producers The manufacture of gears requires extensive investment in machinery, whereas the assembly of gears can be accomplished from purchased components with comparatively smaller investment. Because of the relatively small size of most gear-manufacturing establishments, with the exception of vehicle gearing producers, certain operations may be contracted out. Contracting out certain operations reduces the overhead of the gear manufacturer. Few .. gear or gear product manufacturers perform all the steps necessary to make gear from raw steel. Only small number of firms in the United States perform their own casting or forging of gear blanks, since these are capital-intensive production steps. Some small producers specialize in machining gear blanks or in cutting gear teeth. Operations that are frequently contracted include heat treatment and spiral bevel gear production (generation and grinding). Gear grinding with cubic boron nitride (CBN) wheels is relatively new technology and is not in widespread use. (See app. for data on the number of establishments performing certain manu- facturing operations.) Manufacturing in the .. gear industry differs according to the gear quality, its required precision, the size of the gear, and the numberproduced. Manufacturing efficiencies a