Bevel-helical speed reduction gearboxes B3 gear unit sizes to Selection and ordering data B3VV-15-C

Flender/Flender Gear Units/Bevel-helical speed reduction gearboxes B3

orded, see also item 7.2.4. 6.4 Coupling flange on output side The front area of the coupling flange must be absolutely free from grease. This is essential for safe and reliable torque transmission. Do not use contaminated solvents or dirty cloths for removing grease. Tighten diametrically opposed tensioning bolts to full torque. Tightening torques of flange bolts for gear units: Table 2: Tightening torques for flange connections Gearunit sizeStrength classTightening torqueBolt DIN 9 5 ... 6 1.9 6 Nm 7 ... 1 1.9 1 Nm 1 ... 1 1.9 2 Nm 1 ... 1 1.9 3 Nm Damaged bolts must be replaced with new bolts of the same type and strength class. 6.5 Gearunit mounting by mounting flange or blocktype mounting flange 6.5.1 Counterflange on the machine side The counterflange must be horizontal and plain. The counterflange should be designed such that no resonance vibrations are created and that no vibrations are transmitted from adjacent foundations. The counterflange construction on which the gear unit is to be mounted must be torsionally rigid. It must be designed according to the weight and torque, taking into account the forces acting on the gear unit. The unit must be carefully aligned with the motor on the input and output sides. Possible strain deformations due to operating forces must be taken into account. Fastening bolts or nuts must be tightened to the prescribed torque. For the correct torque, refer to item 6.2. Bolts of the minimum strength class 8.8 must be used. If external forces are acting upon the gear unit, it is advisable to prevent the unit from displacement by means of lateral stops. For dimensions, space requirement, arrangement of supply connections (.. with separate oilcooling units), refer to the drawings in the gearunit documentation. 6 / 1BA 5 en 0/2.5.2 Description of installation work Remove the anticorrosion paint on the shafts with suitable cleaning agent such as benzine. Do not allow the cleaning agent (.. benzine) to contact the shaftsealing rings