ngleside high speed shaft HSS Radial shaft seal A B3HV-14-C Bevel-helical speed reducer B3

Flender/Flender Gear Units/Bevel-helical speed reducer B3

r is don on shaft of gear unit motor. Each size of electric motor will need different gear because of its different shaft diameter and therefore row R2 is not good for single-stage gear units. Gear ratio of two-, three- and multi-stage DOI: 1.1/ ,0 ( 7 1 1 MATEC Web of Conferences matec conf/2 2 MSE 2 gear reducer is performed in standard row R2. In that case, two possible gear ratios are added on the first gear pair. Their combination gives two gear ratios and combination of other first gear pairs gives the values of standard row R2 for output gear ratio of the gearbox (Fig. [2, 9, 1]. Fig. 1. The way of performing gear ratio for two-stage gear reducer. Gear ratio of three-stage gear reducer is also offered in standard row R2. These gear ratios can be obtained in two ways. If the outp ut gear pair with higher load capacity is added on two-stage gear reducer, it can be ob tained gear ratio in the row R2 (Figure 2-). The other way is to use the output gear pairs from two-stage solution with inserting gear pair with lower load capacity as the second and using the first gear pair from smaller size of gearbox (Figure 2-). Of course, this is always possible except for the smallest size of gear reducer. Using the first gear pair for smal lest size of three-stag gear reducer is not economical since the gears have higher load capa city than it is required [1, 2, 9, 1]. Fig. 2. The way of performing gear ratio for three-stage gear reducer, () with additional output gear pair, () with additional lower second gear pair and using the first gear pair from smaller size of gearbox. If the first solution is used (Fig. 2.) with additional third gear pair, the same uniform housing can not be used for two- and three- stage gear reducer. It is because of big difference between load capacities of two- and three-stage load capacity which will increase production costs. Ther efore, the other solution with common ou