THE OVER-GEARS
The over-gears are designed for connecting gear pumps to farm tractor
power-take-offs.
Output speed of power-take-offs is 540 R.P.M. which can be compared
with proper running speeds of hydraulic pumps. Different input speeds
can also be suitable, provided that over- gear output speed does
not exceed 3000 R.P.M.
HOUSING: Made in shell-cast aluminium or in high mechanical resistance
sand.
GEARS: The gears have been calculated in compliance with ISO/DIN
3990-88 standards. Made in Steel UNI 18 PCR M03. Stub teeth guarantee
higher resistance and whisper quietness.
SHAFTS: Made in steel UNI 16 CRN4. They are Coupled with gears via
splined parts and are thus more suitable to stand the torques stated
in the catalogue.
TORQUES: The torques mentioned in the technical charts of all over-gears
refer to continuous duty. Torques under intermittent working Conditions
can be exceeded by 20%.
LUBRICATION: We recommend to use oil Type SAE 90 to ensure longest
life and proper operation of the unit. Check oil level via the special
window every 1500 hours. Carry Out first oil change after 60 to 80
working hours.
WORKING TEMPERATURE: Continuous working temperature should not exceed
120°C.
PUMP ASSEMBLY: Pump assembly requires a half-coupling and a fitting
flange according to specific requirements. When ordering, please
specify flange and pump shaft type.
Contact us when installing special pumps with
operating features different from those stated in this catalogue.
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