Revolution in Industrial Robotics: SPINEA Introduces New W Series of High Precision Gear Reducers

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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

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

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:

1. Installation Method : Fit the case on the fitting diameter on the output side of the case to obtain maximum tilting stiffness
2. Case Fixation : Use screws with through holes or better by using threaded holes (to obtain gear reducers with higher case strength)
3. 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.

Download white paper for W series