Bonfiglioli’s 300 Series is a robust and versatile solution suited for harsh applications where shock loading and impacts are frequent. It features strong bearings to ensure a long lifespan. The new FDK and FZP versions feature an output hollow shaft that will make the series more effective and suitable for shaft mount assembly. This reduces the time and effort of disassembling of the drive from the customer’s machine shaft, thanks to the axial locking ring. The new product solutions make mounting and commissioning easier and faster thanks to the smarter design and allow for easier and more accurate screw tightening. Furthermore, the design of the shrink disk will improve set up and commissioning.
The hollow shaft with the two keys at 120° allows full rated torque and max torque transmissions. The axial locking ring with threaded holes completes the solution for an easier and more reliable shaft mounting. The keyed hollow shaft is available in smaller sizes, ranging from 300 to 310 and will be included in the designation of the series with the acronym “FDK”; when the FZP version is available it will come in larger sizes from 311 to 325.
Another design component of the new 300 series is the splined hollow shaft which meets the DIN 5480 standard and offers the same strong bearings available in the current FP version. It provides double centering for an aligned assembling of the solid shaft of the machine. Like the keyed hollow shaft, the splined hollow shaft also includes an axial locking key with threaded holes for easier mounting and grants full rated and max torque transmissions.
The new shrink disks prevent accidental mounting errors—even when dismounting and re-mounting the shrink disk—thanks to simpler design and visual-control of screw tightening torque.
This design makes the 300 series now complete and effective for any shaft mounted requirements for all sizes and ratios. The series has a torque range of 1,000-1,287000 Nm and gear ratios of 3.4-5,234.