Siti Gearbox by Makharia Machineries Pvt. Ltd.

We are engaged in offering Siti Gearbox.

Features:

• Design accomplished on the computer, with the use of modern and sophisticated software for the dimensioning and strength calculation of gears, calculation of bearings, shafts and structural strength.
  
• Construction has been based on the highest degree of modularity as well as flexibility and versatility of use and installation. Gearboxes have been studied and developed as compact functional subgroups, which can be fitted together easily in order to give rise to the several versions available; The last reduction unit is unique for each size and this helps the accomplishment of a wide variety of versions with the lowest waste of resources.

The following versions are available for each size:

• Gearbox with solid input shaft.
• PAM arranged geared motor.
• Compact geared motor with the exception of sizes 90 and 100.

Specifications:

• High quality of the product, due to both design techniques, essentially maximizing all performance features, and quality control extended to all manufacturing steps, assembly and on the finished unit.
• Silent and free of vibrations units in all the potential conditions of usage, provided with high efficiency, able to operate even in presence of high in- put speeds and high intermittency (acceleration and deceleration transients), having restricted backlash, all this achieved thanks to a compact construction, the accurate parallelism of shafts and bearing seats, the highly efficient assembling techniques.
• Performance has been maximized through toothing corrections and improvement of the convexity of the tooth profile. Max allowed output torques have been calculated with the IS0 6336 rule. Gearboxes are carried out in the version with two stages of reduction (ratio from 2:1 up to 50:1) and with three stages of reduction (ratio even up to 466:1 on some sizes). The third stage is such to accomplish the whole coaxiality of input and output shafts with the exception of sizes 90 and 100.
• Excellent materials and heat treatments aim at the achievement of high performance and long life Except on size 20, housings are in high toughness cast iron, strengthened by ribs.
• All gears are made in case-hardening steel (20 Mn Cr 5 or materials of equivalent strength and harden ability) and are submitted to case-hardening, quenching and stress-relieving, to give high resistance to static and dynamic stresses and to wear.
• The solid output shafts are made in hardening and tempering steel 42 Cr Mo 4 or materials of similar properties.
• Housings are made in cast iron G 25 according to UNI 5007 specification, except NHL 20 in aluminium pressure die casting.
• All the new gearboxes offer a chance to accept high external loads, both radial and axial ones, wherever oriented: our tables give the ratings which can be applied with no troubles in any condition, for special application purposes it is however advisable to evaluate the possible Suitability through a specific calculation.