tation Without oil filling Shaft version with re B3-DV-4-D Bevel-helical gearbox B3

Flender/Flender Gear Units/Bevel-helical gearbox B3

reducer of different manufacturers. Axis height , mm Designation of gear unit Nominal output torque, TN, Nm Max gear ratio imax Manufacturer: SEW 1 5 4 2,3 1 6 5 2,1 1 7 7 2,3 Manufacturer: Nord - NORDBLOC 1 SK 5 4 5,7 1 SK 6 5 6,1 1 SK 7 8 6,3 Using this approach, almost the same load capacity can be obtained as with second gear pair of gear reducer with two sets of gear airs. Production costs will be little lower, but production will be increased because of introdu cing additional size and keeping in stock the components of all sizes of gear reducer. Large manufactures do not have this problem since 1 2 TN1 Pem1 max Pem1 min TN2 Pem2 max Pem2 min TN PemM max PemM min DOI: 1.1/ ,0 ( 7 1 1 MATEC Web of Conferences matec conf/2 2 MSE 2 they have large production and large stocks. Howe ver, if some small manufacturers want to be competitive, they have to produce every sp ecial dimension of the additional gears, but sometimes they are not able to pr ovide absolute interchangeability. 4 Conclusions The using of two gear sets of gear pairs within the same gear reducer housing is very justified procedure. Production is little bit complicated and it is required larger stock for all necessary gears, but only in this way it is always possible to offer cheaper solution nd in that way remove the possible advantage of co mpetitive solution. In order to increase the offer of their reducer, large manufacturers often introduce additional size of gear unit. Small manufacturers try to compete with them and stay at the market by offering cheaper solution with high gear ratio and smaller torque capacity, so they offer gear units with one stage less. This paper is part of research on project "Research and Development of New Generation of Wind Generators of High Energy Efficiency" TR 3, supported by the Ministry of Education and Science, Republic of Serbia. References 1. . Kuzmanovi, Universal Gear Reducers with Cyli