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From type 75 and up, 2 taper roller bearings are mounted on the worm shaft Moreover, the combination of this characteristic and 2 nilos (mounted on size 75 and up to keep lubrication grease inside the bearings even when they are not touched by the oil bath), permits the mounting of the whole BOX range, from the size 30 to the size 150, in the positions V5 and V6 without any need of additional interventions.
The new patented “BOX” series of worm gear units is made with die-casting aluminium housing from size 30 up to 90, and in cast iron size 110,130&150. The housing has been designed usingparametric 3D CAD software supported by systematic analysis of the thermal dissipation capacity and the structural resistance to deformation under the effect of working loads.
BOX units size 30 up to 90 are supplied with long life synthetic oil and they do not required any maintenance during their lifetime. BOX size 110-150 uses mineral oil, but synthetic oil is available on request.
An epoxy paint coat cancels the negative effects of the aluminium porosity and protects the housing from oxidation.
2 safety plastic covers on the output are always provided to protect BOX during transportation and storage, and then the user from accidental contacts with moving parts.
In order to reduce noise, improve efficiency and durability, the wormshaft is made in case hardened steel and profile ground machined, while the worm wheel is in shell cast ZCuSn12 bronze.
Mating surfaces are machined for a perfect planarity.
Mounting positions B6 or B7 are also permitted on all the BOX series, thanks to the adoption of 2RS auto lubricated bearings on the output gear. In conclusion, the whole BOX series can be mounted in any position with no need of specifications in the order.

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The new patented “BOX” series of worm gear units is made with die-casting aluminium housing from size 30 up to 90, and in cast iron from size 110.

The whole BOX series can be mounted in any position with no need of specifications in the order

BOX motor type max Nm
(4 poles)
30 56-63 19
40 63-71 39
50 63-71-80 74
63 71-80-90 135
75 71-80-90-100-112 205
90 80-90-100-112 360
110 90-100-112-132 675
130 90-100-112-132 850
150 100-112-132-160 1200

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