ed Nominal power ratings PN kW type H Gear unit si B2-VH-18-A Bevel-helical gearboxes B2

Flender/Flender Gear Units/Bevel-helical gearboxes B2

lustration of the gear unit and the number of the auxiliary drives, please refer to the drawings in the gear unit documentation. For the exact designation of the geared motor as well as the mounting position please refer to the drawings (see section 1. "Technical data"). The auxiliary gear unit has its own oil circulation system which is separated from that of the main gear unit. Before connecting the motor, determine the direction of rotation of the three-phase current supply using phase-sequence indicator, and connect the motor in accordance with the pre-determined direction of rotation. Observe the notice pasted onto the gear unit. Note The special operating instructions should be observed for operation of the auxiliary gear unit. 3 / 7BA 5 en 0/2.1.1 Overrunning clutch If the gear unit is fitted with an auxiliary drive unit in addition to the main drive, coupling is realized by an overrunning clutch. This allows, when driving by the auxiliary drive, torque transmission in one direction of rotation, while there is "free-wheeling operation" when driven by the main drive. The output shaft of the main drive will rotate in the same direction of rotation both if the drive is effected via the main motor and via the auxiliary drive. The overrunning clutch is positioned on one of the two or three input shafts and is integrated in the oil circulation of the gear unit. Maintenance and oil change take place simultaneously with maintenance and oil change of the main drive. The overrunning clutch is provided with centrifugally operated grippers. If the main gear unit is rotating in the specified direction of rotation, the inner ring will rotate together with the grippers, while the outer ring remains stationary. From certain speed of rotation, the grippers will lift off and the overrunning clutch will operate without wear. If the drive is effected by the motor of the auxiliary drive via the outer ring, the overrunning clutch will be in "carrier operation" , .. the main ge