Flender/Flender Gear Units/Bevel-helical speed reducer B4
they indicate permissible vibrations up to which their gear units can be exposed: perm. ( or they refer the customers

to the standards which regulate these fields. Therefore, there is no bigger problem when adopting gear unit from the catalogue.

TN fB Ti Tmax = fB Ti ANNALS OF THE FACULTY OF ENGINEERING HUNEDOARA JO URNAL OF ENGINEERING. TOME (.

Fascicole 3 2 4. GEAR UNITS ADOPTION IN THE FRAME OF OFFERED PROD UCTS ON THE MARKET Gear units adoption

from the offer of different gea units manufacturers is very interesting problem. Because of previous positive xperience, good business relationships, possible discounts etc., purchasers of gear units are oriented to particular provider and manufacturer. Therefore, se lecting particular manufacturer is rather simplified. It is very rarely that the same customer buys particular types and dimensions from one provider, and other types and imensions of gear units from other provider. Usually, it is about related commer ce, and some recommendations about gear units adoption are not able to do anythi ng, but they could. From the economic point of view and if technical parameters are satisfied, price of gear unit is crucial factor when adopting gear units. However, it really right and should the price of gear units be the crucial factor? If the gearbox with the same technical characterist ics can be found at different manufacturers, and it can, adoption of ge ar unit with the condition TN fB , guarantees that gearbox will operate at least 1. 0 hours, ie. it will operate at least 5 years with the foresaw exploitation regimes . It means that selected gear unit will certainly operate properly during the warranty period, and that the purchaser will be satisfied. Nevertheless, if output torque ( TN) of gearbox, or permissible service factor ( fB), has greater value, it means that the gearbox wil operate longer, ie. it is more durable and has bigger price. If the pu