Model: F0906 | Part Number: 03.04.02.0002
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In the field of precision transmission, every technological breakthrough has the potential to transform an entire industry. The F0906 Inverted Planetary Roller Screw is precisely such a product that breaks through traditional boundaries – featuring a unique inverted structural design, it redefines the possibilities for high-precision linear motion within compact spaces.
As an innovative branch of the Planetary Roller Screw family, the F0906 adopts a distinctive operating principle where the nut serves as the power input to drive axial movement of the screw shaft. Compared to traditional Ball Screws, the F0906 achieves qualitative breakthroughs in core performance indicators including load capacity, rigidity, and service life, while reducing its volume to two-thirds of conventional products. This breakthrough makes it the ideal choice for applications extremely sensitive to space and weight, such as humanoid robot joint drives, aerospace precision mechanisms, and medical devices.
Whether for research projects pursuing ultimate performance or industrial applications requiring reliable transmission, the F0906 Inverted Planetary Roller Screw delivers solutions that exceed expectations.
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The F0906 employs an innovative inverted structure where the nut acts as the power input for rotational motion, and the screw shaft connected to the load achieves precise axial movement within the nut. The core advantages of this design include:
- No Internal Ring Gear Design: The straight teeth at both ends of the screw shaft mesh directly with gears at both ends of the rollers, resulting in a simpler and more reliable structure
- Integrated Design Potential: Deep integration of the nut with motor rotors can be achieved, significantly reducing overall dimensions
- Higher Transmission Efficiency: Reduced intermediate transmission stages result in lower energy loss
The line contact design is the fundamental reason for the F0906's exceptional load capacity. Compared to the point contact of ball screws, the number of force transmission points increases significantly:
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This high load-bearing characteristic enables it to withstand greater impact loads and vibrations, making it ideal for applications requiring frequent start-stop cycles or bearing sudden loads.
The F0906's inverted planetary roller structure cleverly distributes contact stress, combined with precision heat treatment processes, achieving remarkable service life:
- Service Life Comparison: F0906's lifespan is 10-15 times that of standard ball screws
- Failure Mode: Progressive wear, predictable and maintainable
- Lubrication Requirements: Low-frequency lubrication, reducing maintenance costs
For industrial equipment requiring long-term continuous operation, this characteristic means significantly reduced downtime and maintenance costs.
Precision transmission begins with accuracy. The F0906 excels equally in precision performance:
- Lead Accuracy: Up to ±0.005mm
- Repeatability: Sub-micron level
- Motion Smoothness: No stick-slip phenomenon, excellent low-speed stability
This precision level fully meets the high-accuracy requirements of CNC machine tools, measurement equipment, and automated assembly lines.
The F0906 performs exceptionally well in high-speed operation:
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High-speed capability makes the F0906 particularly suitable for high-speed machining and automated production lines pursuing efficiency.
In space-constrained applications, the F0906's compact design advantages are fully evident:
- Volume Comparison: Under the same load capacity, volume reduced by 1/3 compared to ball screws
- Weight Optimization: Optional hollow design reduces overall weight
- Flexible Installation: Supports multiple mounting methods to accommodate different spatial constraints
This characteristic is critical for applications extremely sensitive to weight and volume, such as humanoid robot joints and medical devices.
The F0906 undergoes strict material selection and process optimization, possessing outstanding environmental adaptability:
- Operating Temperature Range: -40°C to +130°C
- Corrosion Resistance: Adapts to general industrial environments
- Interference Resistance: Operates normally in vacuum, low-temperature, and high-temperature environments
Whether in extremely cold outdoor equipment or high-temperature workshop environments, the F0906 maintains stable performance.
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Note: The above parameters are standard specification values. Specific products can be customized according to customer requirements. For special dimensions, precision, or material requirements, please contact our technical team for detailed solutions.
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The core transmission principle of the F0906 Inverted Planetary Roller Screw can be understood through the following steps:
Step 1: Power Input
- External drive source (motor) connects to the nut
- Nut begins rotational motion
Step 2: Power Transmission
- Precision threads on the inner surface of the nut mesh with multiple rollers
- Rollers rotate in a controlled manner within the nut
- Gears at both ends of the rollers mesh with the straight teeth at both ends of the screw shaft
Step 3: Motion Conversion
- Rotational motion of the nut is transmitted to the screw shaft through the rollers
- Rotational motion is converted into linear axial motion of the screw shaft
- Screw shaft moves axially forward or backward
Structural Feature Analysis
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Motion Direction Control
- Nut Forward Rotation → Screw shaft moves axially in one direction
- Nut Reverse Rotation → Screw shaft moves axially in the opposite direction
- Nut Stop → Screw shaft maintains position (Self-locking characteristic)
The unique aspect of this inverted design lies in: power is input from the nut, and the screw shaft serves as the output end bearing the load. This structure enables integrated design of the nut with the motor rotor, which is key to achieving compact design.
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The F0906 Inverted Planetary Roller Screw, with its excellent comprehensive performance, is widely used in multiple high-end fields:
