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This quote form is intended for customers and partners in North America seeking information about Nidec Drive Technology America Corporation’s Precision Gearing Technologies. For inquiries related to the Nidec motor group division or from outside this region, please visit the global Nidec Group website to find the appropriate regional or product-specific contact.
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The STH Series is engineered for mid-range rotary indexing applications that require high accuracy, robust load capacity, and flexible motor integration. Built around a precision rotary table with a large 85 mm hollow shaft, the STH provides clean routing for cables, tubing, ball screws, or other mechanical elements. Its heavy-duty cross-roller bearing delivers exceptional rigidity, supporting tilting moment loads up to 200 Nm and radial loads up to 5000 N—ideal for mid-size steel or aluminum dial tables, assembly fixtures, and end-of-arm tooling.
With backlash as low as 2 arc-min and indexing accuracy to ±60 arc-sec, the STH sets the standard for smooth, repeatable rotary positioning of large inertia loads. Using Nidec’s modular design concept, the STH integrates either an inline VRL-070 or right-angle EVL-070 planetary gearbox to achieve reduction ratios from 12:1 to 400:1, giving OEMs flexibility across a wide range of system requirements.
Motor mounting is fast and precise using our optimized adapter system with active centering, ensuring perfect alignment and long-term system reliability. The STH Series is a strong upgrade path for OEMs transitioning from mechanical cam-driven indexers or pneumatic systems.
