We take pride in our state-of-the-art manufacturing facility, where innovation meets precision. Established in 2006 and recently expanded to cover an impressive 20,000 m², our factory reflects our commitment to producing high-quality machinery and transmission products for customers worldwide.
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Gear units and great motor units are covered by warranty for 2 years, except electric motor. Please refer to warranty certificate of electric motor producer or user guide for motor warranty. This warranty shall be valid if gear unit is mounted and operated according to the user guide and product is used within limits allowed in the catalog.
Gear units of which service factor is under 1 should not be preferred. In such case, please contact us.
Main Factors Affecting Service Factor:
Body of gear units produced by PGR is made of Cast iron (Peak(GG20-22-30)) and Sfero (GGG40-50-60) materials through various casting methods. Aluminum parts are produced through aluminum injection method.
It refers to compliance of real evolvent, helical and pitch values of the gear with theoretical values specified in DIN3961. According to DIN norm, gear quality is defined from 1 to 12. 1 refers to premium, 12 refers to lowest quality.
Gears produced by PGR are evaluated to be 6. Thanks to grinding machines equipped with cutting-edge technologies, higher-quality gears can be produced.
Worm screw is made of case-hardening steel (21NiCrMo2), gear wheel is made of bronze (12SnCu) alloy.
In worm gear units, the efficiency is lower compared to other gear units since worm gear and striking gear transmit motion by sliding on each other. Therefore, it is recommended to select materials that have high strength values and lowest friction coefficient with each other.
Friction coefficient among steel/bronze materials is much less than friction coefficient among other materials. Therefore, higher efficiency is ensured.
During production process of gear units, many controls and tests are performed at each stage as follows:
Synthetic oil is used in planet and worm gear units while mineral oil is used in helical and bevel gear units.
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