The design of helical worm gearbox is based on modular design. The helical worm gear reducer adopts a combination of helical gear and worm gear. So, it has higher efficiency and strength than single-stage aluminum worm gearbox. Because of the outstanding efficiency, the helical worm gear units can be used in every industrial sector and customized to meet individual torque and speed requirements. The gear ratios afforded by a single-stage helical-worm gear and the low noise level during running make the transmission device ideal for low-cost solutions in simple applications.

Advantages
1. Small bias output, compact structure, maximum utilization of housing space with two-stage, three-stage gears in the same housing.
2. Rigid monoblock cast iron housing, easy to improve the shaft strength and bearing life.
3. Mounting options: foot-mounted or flange-mounted, various flange sizes available.
4. The whole helical worm gearbox is leak proof, suitable for wet, dusty, mildly corrosive environment.

Available Versions
Foot-mounted or flange-mounted
B5 or B14 Flange-mounted
Solid or hollow shaft
Hollow shaft with keyed connection, shrink disk, splined hollow shaft

Parameters
Power: 0.18-22kw
Ratio: 10.27-230.48
Output speed: 0.3-145RPM
Output torque: up to 4000N.m
Mounting: foot-mounted, flange-mounted, shaft-mounted installation
Output shaft type: hollow / solid

Torque Range	90~4000N.m
Rated Power	0.12~22KW
Ratio	6.8~157.43
Output Mode	Feet and shaft mounted   Keyless shrink disk mounted   Metric or inch solid output shaft   DIN5480 hollow shaft with involute   wihtout feet mounted and output flange mounted
Input Mode	IEC motor adapter   NEMA C face motor adapter   Servo motor adapter   Metric or inch solid input shaft

Input power rating and max torque 

Modular Design:

S series of helical worm gearbox are available in the following designs: