U Series Worm Gearboxes

U Series Worm Gearboxes

U series worm gearboxes are also called NMRV worm gearboxes and are cubical in shape. Their shape enables consumers to use install them in different modes without any change in gearbox structure. The shell in such gearboxes is made of cast iron, and they are produced in 110-300 sizes with short and long shafts.

Advantages:

• Economical;
• Low noise;
• Very high power capacity;
• Minimum space needed for installation;
• High Safety factor;
• High life span;
• Various installation modes;
• Wide output speed selection range;
• Wide output torque selection range.

Disadvantages:

• They cannot be used at 1500 rpm.
• High operating temperature (due to the gear engagement mechanism);
• Relatively low efficiency (up to 65%).

Number of sizes (types): 7

Output torque range: 830 … 8300 Nm

Reduction ratio: 7… 100

Power capacity range: 1.1…90 kw

Installation/Assembly (input):

• Input with solid shaft
• Input with e-motor coupling

Output:

• HOLLOW SHAFT
• OUTPUT SHAFT

Specific (Custom-made) design:

OUTPUT SHAFT ON BOTH SIDE

Torque Range: