Hangzhou Wanxing Speed Reducer Co., Ltd shows up in October PTC ASIA 2011

Hangzhou Wanxing Speed Reducer Co., Ltd shows up in October PTC ASIA 2011

Our company has confirmed participation at the leading industry exhibition PTC ASIA 2011 during October 25-28, at Shanghai New International Expo Centre, China. As a famous player in gearbox field, we will be presenting the latest products of NMRV series gearbox, offering a best product supply to the booming markets. This time, the theme will be high efficiency.

Established in China in 1991, PTC ASIA is now the Asia No.1 & World No.2 international exhibition for power transmission and control technologies. In 2010, 1,249 exhibitors from across the world joined the show with an area of 69,000 sq m.

At PTC ASIA 2011, application will take the spotlights at the onsite exhibition and all clients/users related are welcomed to our booth for further products and services introduction.

step motor

A stepper motor (or step motor) is a brushless, electric motor that can divide a full rotation into a large number of steps. The motor's position can be controlled precisely without any feedback mechanism (see Open-loop controller), as long as the motor is carefully sized to the application. Stepper motors are similar to switched reluctance motors (which are very large stepping motors with a reduced pole count, and generally are closed-loop commutated).

Performance of NMRV series gearbox

to be continuted

Applied mid-way along the input and output shaft

Position of output shaft, Choice of lubeicant for NMRV series geabox

Mounting positions and Flange for NMRV series gearbox

Size of input flange for NMRV series gearbox

Models and Marker of NMRV series gearbox

NMRV gearbox summary and Use-safety guarantee

Worm Gear Drives: Quiet, Efficient Performance

Worm gear drives offer many benefits. They take up little space, offer quiet operation and have been used in many different applications. Worm gear drives provide extreme benefits where size is a problem Traditional spur gears would take up considerably more room than what can be accomplished with a simple worm gearbox. They also take advantage of all the major forms of gearing to suit almost any application.


Worm gear drives offer great operation for many different uses. You'll find them in use in use in the mining industry, in ship's rudders and all types of presses. Worm drives offer a great way to amplify a limited amount of torque, though heat can cause them to become less efficient. Worm gears are also used in a limited amount of automotive differentials, though it has fallen out of favor with many manufacturers. Hummer is one of the manufacturers that still utilizes worm gears in their differential, specifically their military vehicles, though some civilian applications have worm gears, as well.
Worm gears were replaced in open differential due to problems with reduction ratios, though many all wheel drive vehicles continue to use worm gear drives in their applications. Large trucks used for hauling very heavy loads often utilize worm gear drives in their differentials, though they require very large differential housings to accommodate the amount of differential fluid needed to dissipate the heat created by the worm gear drive itself.
A worm gear drive consists of two main parts: the worm gear itself, which looks much like a spur gear and the worm, which is a gear shaped like a screw. The benefits that a worm gear drive offers are due to the fact that each revolution of the worm turns the worm gear a whole tooth; this allows them to greatly amplify torque in their relative settings.
Possibly the single best example of a worm gear is the adjustable screw clamp, called a jubilee clamp. These are found almost everywhere and most people are familiar with their appearance. Other forms of the worm gear drive exist, but this is the single most recognizable form that they take. The best applications for a worm gear drive are those in manufacturing industries where greater torque, in a smaller package is required. Since the worm gear drive is able to be set up at right angles to the input shaft, the length of the equipment is significantly reduced. Many industries find that the non-reversible motion is a great benefit, as well. Since the worm can only drive the gear, it means that they can only be used as speed reducers, rather than speed enhancers. The gear cannot drive the worm in a worm gear drive.
Due to these factors, they are an ideal way of decreasing speed, yet increasing power in smaller equipment. While there are many different applications for worm gear drives around the world today, small electric motors are possibly the area that they benefit the most, though musical instruments have been the longest running beneficiary of these devices.