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New Generation of High Precision Gear Reducers for Demanding Applications
In an environment where precision, reliability, and performance play a key role, the W series brings optimized design combined with the latest technological enhancements. This revolutionary series of gear reducers is available in two main variants – with hollow shaft (W-H) and in standard (non-hollow shaft) design (W-S), both offering exceptional technical parameters.
Design Philosophy of W Series
W-H Hollow Shaft High Precision Gear Reducers Series
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Fig. W–H Hollow Shaft High Precision Gear Reducer
- Optimized heritage gear reducer design with W-S series
- Fully integrated powerful heritage output bearing
- Integrated output bearing capable of receiving a high load in any direction
- Allows passage of cables and shafts through the central hole
- Ideal for heavy-duty applications requiring compact dimensions
W-S (Solid shaft) High Precision Gear Reducers Series
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Fig. W–S Standard (Solid Shaft) High Precision Gear Reducer
- Optimized heritage gear reducer design with W-H series
- Very high torque capacity compared to W-H series
- Fully integrated powerful heritage output bearing
- Integrated output bearing capable of receiving a high load in any direction
- Enhanced performance while maintaining compact dimensions
Unmatched Technical Parameters
The W series excels in several key technical parameters:
- High Torque : Up to 14,400 Nm for the standard version (W-495S)
- Minimal Backlash : Less than 1 arcmin, ensuring maximum precision
- Very High Torsional Rigidity : For example, model W-350H achieves 1750-2000 Nm/arcmin
- Exceptional Power Density : More than 49 Nm/kg in the basic version
Output Bearings of W Series: Power and Precision
One of the key features of the W series is the high-performance output bearings, which are located only on the output side of the gear reducers:
- High Load Capacity : Radial forces up to 135,000 N and axial forces up to 201,000 N
- Excellent Moment Rigidity : For example, model W-350H achieves 13,000 Nm/arcmin
- Long Service Life L10 : 12,000 hours at load factor fw=1
Why Choose SPINEA W Series?
Performance Advantages
- Very high torque capacity
- Excellent torsional rigidity
- Exceptional power density
- Very high precision
Output Bearing Advantages
- Very high moment rigidity
- Very high axial and radial load capacity
- Robustness (with double row angular contact roller output bearing)
Design Concept Benefits
- Better cover or motor flange connectivity from the open input side of the gear reducers
- Better lubrication ratios due to the open construction from the input side
- Better heat dissipation from the gear reducers
Comparison with Competitive Solutions
Compared to competitive products, the SPINEA W series offers significant advantages:
- Up to 100% higher torsional rigidity for equivalent hollow shaft sizes
- Up to 50% higher torque capacity for equivalent hollow shaft sizes
- Improved torsional rigidity offering better precision during dynamic movements
- Lower lost motion (<1 arcmin vs. typical 1-3 arcmin)
- Superior positioning accuracy and repeatability
- Higher power density in compact designs
- More robust output bearing solution with significantly higher tilting moment capacity
- Better durability under continuous operation with rated life of gear 6000+ hours
- Enhanced output bearing resistance to shock loads
Ideal Applications for W Series
Thanks to its exceptional properties, the W series is ideal for a wide range of applications:
- Demanding Robotic Applications : High torsional rigidity ensures precise positioning and ability to handle high loads with minimal backlash
- Machine Tool Industry : High precision required for accurate machining and robustness in handling shock loads
- Rotary Tables and Positioning Systems : Precise positioning with minimal backlash and ability to handle high tilting moments
Special Applications for W-H Series (with Hollow Shaft)
- Robot arms and positioning systems requiring cable passage through the central hole
- Optical systems with the need for laser beam passage
- Rotary tables with the need for media or cable passage through the axis of rotation
Installation and Recommendations
To maximize the benefits of SPINEA W series gear reducers, it is recommended to:
- Installation Method : Fit the case on the fitting diameter on the output side of the case to obtain maximum tilting stiffness
- Case Fixation : Use screws with through holes or better by using threaded holes (to obtain gear reducers with higher case strength)
- Use of Threaded Holes : Threaded holes on the input side of the gear reducer case are for cover or motor flange installation
Conclusion
The SPINEA W series of high-precision gear reducers represent a new generation of transmission mechanisms that combines innovative design with exceptional performance parameters. Whether it's the hollow shaft version (W-H) or the standard version (W-S), the W series offers a complete solution for the most demanding applications in industrial robotics and general automation.
For more information about the W series of high-precision gear reducers, technical documentation, price quotation, or consultation of your specific needs, please contact our sales and technical team.
