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GENERAL INFORMATION
The gears of the HR series are toothed, cylindrical geared motors, also known as flat, parallel, due to the transmission of the drive to the parallel output axis. The gears are arranged in it in such a way as to obtain as flat a gear as possible. As a result, the HR gearbox can be used in applications requiring linear space savings, such as mounting on a belt conveyor shaft with the motor mounted under the belt.
The series of HR reducers is distinguished by a compact, flat structure, durable body, and a large range of gear ratios. Fully reversible HR gears.
A wide range of sizes of geared motors allows you to choose the optimal drive from small aluminum ones transmitting 70Nm to large cast iron ones with a torque of 2200Nm.
The range of gear ratios we offer in one body is from 2,6 to 680. Larger ratios are obtained by combining two gears.
BODY
We offer gearboxes in aluminum and cast iron housings, which are made by injection.
Aluminum bodies are vacuum impregnated, making them extremely tight and suitable for possible painting.
Cast iron casings are painted in a standard color from the RAL7046 palette.
The internal ribbing of the bodies allows the transfer of high forces and torques. External ribbing perfectly dissipates heat so that the reducer does not overheat.
TOOTHING
Thanks to the helical (helical) teeth, which are ground after hardening, the gear transmits higher loads than the classic toothed gear with straight teeth and is also quiet. Thanks to the perfectly made teeth, the efficiency is up to 98%, which translates into energy savings.
UNIVERSAL FASTENING
For geared motors, we most often use alternating current electric motors flange mounted in the IEC standard. The transmission of torque can be by means of a clutch or classic - where the motor shaft is slidably mounted in the sleeve inside the gear. We also make adapters to connect servo (square) motors, hydraulic (oval), pneumatic and other motors after sending your drawings. For the adapters, we can use claw couplings that dampen vibrations and compensate for misalignment.
In the case of manual or belt or chain drive, we install a solid shaft instead of the standard motor connection. It is not a "glue" mounted shaft, which is the case with some manufacturers. It is a monolithic shaft with bearings and a pinion. So there is no possibility of ejecting it, which may be dangerous for a person or harmful to the machine.
The gear units of the HR series are, in some sizes, interchangeable, mounted to gear units of other manufacturers. This solution has been appreciated by companies providing maintenance services that need a quick replacement of reducers, and the manufacturer of the original drive offers several weeks of implementation. The gears are installed in our company overnight, and in the event of a breakdown, we can even make the gears on the spot. In addition, our gearbox in the same mounting can transfer a larger nominal torque than previously used, which is an excellent solution to avoid future failures and downtimes. Our gears are also easy to use in new devices. It is not necessary to change the mounting in the structure.
In the series of HR reducers, we can also make special mounting flanges and output shafts according to the drawings sent.
BEARINGS
We use top class bearings to ensure quiet and trouble-free operation. The range of transmitted axial and radial loads on output and drive shafts is included in the catalog. In the case of projects where the transmission of higher loads is required from the gears, we can use reinforced bearings. If a gearbox for agitators or extruders is used, we can make additional bearing blocks that carry high axial loads.
SEALS
Our gears are equipped with high-class seals. Simmerings have two lips: the inner one prevents oil from escaping, and the outer one provides protection against dust. In case of high temperatures, we provide installed Viton seals with better thermal parameters.
We also use Viton seals in explosion-proof versions. We can adapt the gears and provide the required certificates for the gas explosion zone 1 (ATEX II2G) and 2 (ATEX II3G) and dust zone 21 (ATEX II2D) and 22 (ATEX II3D).
OIL
In the case of food processing plants, where sanitary requirements are increased, we are able to fill the gear with food oil with appropriate certificates. Additionally, we can make the output shaft of stainless steel.
If the requirements are at the highest level, we encourage you to familiarize yourself with the CGT series transmissions, typically designed for food and chemical plants.
Proper operation of the gearbox at low temperatures is ensured by the use of a special oil.
Our geared motors work all over the world. They gained their popularity due to failure-free operation, attractive price, quick delivery times and the availability of spare parts.
