- NRW Factory
- NRW Germany
As NRW Drive Technologies, we give a high importance in after-sale maintenance and repair services in order to ensure gear units and equipment that we sell serve for a long time. We provide quick and qualified technical and spare part service and aim to support our customers as they need.
As NRW Drive Technologies, we place a high value on after-sale maintenance and repair services in order to ensure gear units and equipment that we sell work for a long time. We provide quick and qualified technical and spare part service and aim to support our customers as they need.
Standard after-sale procedures within the framework of SSH service and quality policy of NRW Drive Technologies:
Standard after-sale procedures within the framework of SSH service (After-Sale Service) and quality policy of NRW Drive Technologies:
It is highly important that gear units and other parts manufactured by NRW are produced without sacrificing quality. It is recommended to use original spare parts of NRW products in order to keep maintenance in performance, have reliability and equipment life.
NRW original spare parts are produced and developed constantly as per standards.
With SAP technology used in our warehouse, immediate data flow is ensured and required spare part support is provided quickly. Therefore, we keep customer relations management at the highest level.
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.
You can download technical drawings at www.pgr.com.tr
If you still cannot, please contact our customer representative.
Gear units of which service factor is under 1 should not be preferred. In such case, please contact us.
Main Factors Affecting Service Factor:
Mounting position is critical in terms of oil amount and level. In addition, additional hardware may be used for lubrication depending on mounting position. Our customers should determine correct mounting position according to the places on their machines.
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.
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.
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.