Helical-Worm Gear Motors / Variations
SEVA-tec GmbH specialises in comprehensive challenges across the field of professional drive technology.
With a focus on electric motors, frequency converters, and gear motors, we present ourselves on the national
and international market. On this page of our helical-worm gear online shop, you will find a selection
of EV and CMRV helical-worm gear units/motors with various rotations. These are specified in rpm and 1/min.
As there are many different variations and possibilities for helical-worm gear motors,
we have listed some product examples below:
Worm gear with electric motors, stub shafts, output flanges and special paint (brown)
Worm gear with brake motors and special paint (red)
Worm gear with three-phase motors, stub shafts, torque supports and special paint (purple)
Worm gear with electric motors, output flanges and special paint (green)
Worm gear with AC motors, double output shafts and special paint (petrol)
Helical-Worm Gear Motors – Custom Design
We are also able to supply helical-worm gear combinations with special motors that meet your specific requirements.
Our decades of experience paired with our in-house final assembly make us the ideal partner for businesses
that require expertise across a wide spectrum. This includes helical-worm gear units with break motors,
special shafts, grill motors with gearboxes, special voltages, special paint jobs, or explosion-proof design.
Helical-Worm Gear Units – Construction and Power Sizes
Our helical-worm gear units are available in the following sizes: 30, 40, 50, 63, 75, 80, 100, 125, and 150,
with a power output capacity of 0.12kW, 0.18kW, 0.25kW, 0.37kW, 0.55kW, 0.75kW, 1.1kW, 1.5kW, 2.2kW, 3kW,
4kW, 5.5kW, 7.5kW, and 11kW. They are also often referred to as angular gearboxes. The aluminium helical-worm gear units
are available in the following hollow shafts: 14mm, 18mm, 20mm, 25mm, 28mm, 30mm, 35mm, 40mm, 45mm and 50mm.
Technical Construction of the Gear Motors
The helical-worm gear unit consists of a shaft with one or more screw threads, the worm, and the worm wheel which
are the helical teeth inside of it. The axes of the two are offset by 90°. This type of gear is typically applied
where high reductions are required in one step. Left-handed and right-handed helical-worm gear motors exist
as both directions of rotation are equally possible. The complete flexibility of mounting options offers foot, flange,
and centreing solutions with torque support. As an option, the motor terminal box can be mounted in 90° intervals
around the motor. The gear motor can be installed in any required position, e.g., horizontally or vertically.
Due to the high interchangeability of the gear motor components (IEC flange), the customer benefits from versatile options,
reduced costs, faster delivery times, and easy maintenance. The helical-worm gear units are available in various
rotation speeds, i.e., from 2-600rpm (revolutions per minute). Six sizes with centre distances of 30-125mm
and gear ratios of 5-110 (when combining two gearboxes of up to i=3000) are available in various designs.
The helical-worm gear units and helical-worm gear motors presented here were developed for universal use in general
machine and apparatus construction. The aluminium housing, which is manufactured using the die-cast process, has great strength
with compact dimensions and low weight. Machining on all sides in a single clamping allows maximum precision
and thus safe application in many areas of drive technology. The high-quality wheelset consists of a hardened worm
with a ground profile and a wear-resistant worm wheel made of bronze, which is firmly cast with a cast-iron hub.