STM has developed an innovative gearbox series by connecting two worm hears, creating a solution specifically designed for low-ratio applications. The STM RR series double worm gearboxes provide a balance of moderate efficiency, high competitiveness, and exceptionally quiet operation, making them a standout choice in the market.

Constructed from premium-quality materials and built to the highest standards, these gearboxes are engineered for durability and reliability. They are particularly well-suited for applications requiring very low output speeds, such as machinery and equipment that demand precise, controlled movements. While the inherent inefficiencies of worm gearboxes might pose challenges in some scenarios, they offer a unique advantage in situations where backdriving must be avoided. This makes the RR series an ideal choice for applications where safety and stability are paramount.

The STM RR series also offers extensive versatility through compatibility with all R and U series accessories. These include double extension inputs for added flexibility, output taper bearings to handle higher loads with improved stability, torque limiters for enhanced operational safety, solid output shafts for robust performance, and torque arms for great structural support. This comprehensive range of accessories allows for customisation to meet specific operational needs, making the RR series adaptable to a variety of industrial environments.

With its thoughtful design and focus on precision, the STM RR series double worm gearboxes deliver reliable performance, exceptional versatility, and the ability to meet the demands of complex and specialised applications. Whether for light-duty tasks or challenging operations, this gearbox series provides an effective and efficient solution.

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