S Series Helical Worm Gearmotor low voltage

S series helical-worm gear units – simple design, exceptionally smooth-running

While their cost-effectiveness is due to their simple design, custom coordination options for torque and speed ensure our helical-worm gear units are compact for ease of installation. Use S series helical-worm gear units as a cost-effective solution for meeting basic requirements in your machine or plant applications.

Adding in a helical gear stage means that significantly higher efficiency can be achieved than when using plain worm gear units. The linear power transmission makes these helical-worm gear units exceptionally smooth-running and low-noise. Why? Power is transmitted to the input shaft via the worm shaft and worm gear in a process that reduces torque impulses and facilitates low noise levels.

The torque range extends from 92 to 4000 Nm. For the new S..7p it is 105 Nm to 4300 Nm.

Space-saving installation

thanks to custom coordination options for torque and speed in all seven sizes.

High efficiency

thanks to the simple design of the helical-worm gear unit.

Low-noise operation

because the linear power transmission attenuates torque impulses on the drive shaft.

Our new S..7power series offers even higher torque for all seven sizes, which ensures you can benefit from a higher power density. Torque on the S..7p series is up to 65 % higher than on standard S..7 helical-worm gear units.

Lubrication

Besides lubricating the gearing, gear oils also play a significant role in dissipating heat in gear units. Our new lubricant SEW GearOil Poly increases the performance of worm gear units by reducing friction in the gear teeth in particular. As a result, the helical-worm gear units can be pushed to a higher torque. SEW GearOil Poly forms a highly effective lubrication film, which increases the service life of both the lubricant itself and wear parts such as sealing rings and bearings. SEW GearOil Poly also improves the efficiency of the helical-worm gear units.

Efficiency

The way power and speed are transmitted in helical-worm gearing generates a high level of sliding friction between the worm and worm gear. Using SEW GearOil Poly ensures outstanding lubrication and optimum heat dissipation at every operating point, which fundamentally enhances efficiency. As a result, it has been possible to increase the efficiency of S..7p helical-worm gear units by up to 13 percentage points. This effect is particularly noticeable on the large gear ratios and is hugely beneficial. This enhanced efficiency immediately gives you a higher usable output torque for the same motor power. If the higher output torque is not taken off, consumption is reduced at the same speed and you save energy and benefit from reduced energy costs.

The increased torques mean that, in the best-case scenarios, you can select the next size down, as you can now take off higher torques in a smaller space or, if you cannot vary the gear unit size, you have greater safety/reserves in your drive.

Stage drives

Adjustment drives

Presses

Rotary tables

Corner transfer units