mechanical speed variators - reliable and easy to assemble

gear manufacturers have been designed and manufactured to maximise their operational lifespan Dry friction and fully sealed enclosure allow reliable, service free and safe installations. Gear Motor are designed according to a proven system that provides strict quality control at every stage of production. The goal is to provide the customer with a variable speed drive that is both reliable and easy to assemble, in respect of what the safety regulations are in many different areas (potentially explosive atmosphere, food & beverage and so on).

Work well of speed increaser gearbox

speed increaser gearbox.  Work well if properly designed but can be difficult because of the tight tolerances required Gearbox.   A compact and convenient solution but often costs more than the motor itself  Belts and pulleys.   Toothed timing belts are quiet and easy to use, but the reduction gear can take up too much space if multiple stages are needed. They normally require a tensioning mechanism.

Sprockets and chains.   Can handle high torque and are easy to use because of the loose tolerances required, but they can be noisy. They can sometimes be used without a tensioning device.

Miniature bevel gearbox

miniature bevel gearbox :Featuring anti-backlash miter gears for high precision applications, we also offer bevel gear assemblies to facilitate implementation.

We feature two material options for all miter gears, bevel gears, and gearsets: 2024 aluminum and 303 stainless steel.

• Maintenance-free 

Grease is applied to gears before shipping.

•Compactness

Simplicity of design, enclosed in an aluminium die-cast casing.

• Low noise and high efficiency 

The spiral bevel gears are made of case-hardened alloy steel. 

• Freedom of installing orientation 

The motor reducer can be installed easily in any orientation. 

Tork Drive worm gear efficiency

Tork Drive  worm gear efficiency :

Reduce Energy Consumption and Energy Costs

If you have an application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a variable frequency drive, which is one of the benefits of Variable Frequency Drives. worm gear box allow you to match the speed of the motor-driven equipment to the load requirement. There is no other method of AC electric motor control that allows you to accomplish this.

Tork Drive ensuring optimal motor application speed. Because of the worm gear box​ optimal control of the motor’s frequency and voltage, the VFD will offer better protection for your motor from issues such as electro thermal overloads, phase protection, under voltage, overvoltage, etc.

equation to calculate efficiency of worm gears

worm gear. In these widely used speed reducers, a worm gear drives a worm wheel to provide output motion at a right angle to the motor shaft . 

 These speed reducers are often the best value for applications in which the motor and reducer are coupled in-line with the driven shaft, Figure 5. Their efficiency usually ranges between 95 and 98%, regardless of speed ratio. Cost is competitive with worm gear motor where the center distance is 2-in. or more.

The worm gear and worm wheel have non-intersecting, perpendicular axes, and the meshing action between gears occurs over a relatively large contact area. This meshing action consists primarily of a sliding motion that creates friction between the gears.

Worm gear efficiency varies significantly when lead angle, friction factor and gear ratio changes. 

vertical mounting of the helical gearboxes

reduction gear box are available in ratings from 1 to 200 HP and output speeds from 1.5 to 1430 RPM with AGMA Class I, II, or III service factors. The Type G design incorporates a standardized AGMA motor flange which aligns a NEMA frame footless AC motor to a modular gear-drive which provides a single source motor and gear assembly. Nuttall Gear can offer either standard or high efficiency AC motors with Nuttall Gear’s proprietary non-NEMA AC motor shaft in all types of motor enclosures. The modular gear assembly incorporates precision helical gearing in single, double, triple, and quadruple reductions, rugged cast iron housings, and tapered roller bearings.

speed increaser gearbox can be arranged for floor, wall, or vertical mounting. Many modifications, in both mechanical and electrical, such as brakes, special motor insulation, special oil seals, and marine duty are all available.

Dynamic oil gearbox

Dynamic oil gearbox has advantages of compact ,small weight ,good seal ,easy installation and repair .etc,which comparing with gearbox.

Motor-inside Electric Roller can be used in dust ,moist,mudy,outdoor and highly explosive sites.Ambient temperature between -10ºC～+40ºC . sea level less 1000meters.Normally ,electric roller should be installed with horizontal.

Our electric roller be designed and produced complys with standard of Ministry of Machinery Industry JB/T7330-2000 .In-side gear construction including planetary gear,helical gear and cycloidal gear. Assembly method has motor-inside,motor-outside,and motor movable.

All electric roller can be covered by rubber or not ,the rubber style has plane shape ,double helical shape and diamond shape. All roller can be with backstop and hydraulic coupling and brake.