WEG CESTARI Worm Gearbox line, Инструкция по эксплуатации, Страница: 13 / 40

Worm Gearbox line
If the gearboxt/geared motor is repainted for any reason, the retainers must be insulated to prevent the paint
from drying out, which causes the retainers to leak.
The fan and motor fans must be kept clean and free to allow perfect cooling; the distance between the air inlet
and the wall must be at least 30 mm.
The equipment where the geared motor or gearbox is being fixed must provide a correct positioning of the
fixing holes, observing that all the flange holes or gearbox feet must be used, so that there is no concentration
of efforts.
The keyway of the geared motor or gearbox is in accordance with DIN 6885 (Flat keys - DIN 6885 standard
sheet 1) and the metric thread of the tip in accordance with DIN 332 (centre 60° holes with metric thread - DIN
332 standard sheet 2 form D).
Check that the gearbox's working position and mounting are correct. Check that all fixing screws are correctly
tightened. When the gearboxes are put into operation, they must work without load for some hours; if there is
no abnormality, the load is gradually placed until reaching its total.
NOTE: The items listed above are valid only for the proper functioning of the gearbox, leaving the specifications
for general operation to the equipment manufacturer
5.4 Axial clearance for bearing mounting
s
ize
Simple reduction gearboxes Double reduction gearboxes
Input
Output Input Output
Normal Shaft Hollow Shaft 1º Stage 2º Stage Normal Shaft Hollow Shaft
14 0,16 - 0,18 0,01 - 0,03 0,01 - 0,03 0,08 - 0,09 0,03 - 0,04 0 - 0,02 0 - 0,02
17 0,18 - 0,20 0,01 - 0,03 0,01 - 0,03 0,10 - 0,12 0,04 - 0,05 0 - 0,02 0 - 0,02
20 0,14 - 0,16 0,02 - 0,04 0,02 - 0,04 0,12 - 0,14 0,03 - 0,04 0 - 0,02 0 - 0,02