SPX140 In-Line Compact Planetary Gearbox | High-Performance Low-Backlash Servo Drive

Optimize your machine footprint and system dynamics with the Planetary gear reducer SPX140, a highly versatile inline powerhouse within our premier SPX Series Planetary Gearbox lineup. Explicitly engineered to balance compact structural sizing with high power-density requirements, this Compact Planetary reducer provides a dependable rated output torque profile of 342NM to 650NM wrapped in a streamlined 140mm frame housing. Built for direct coupling with modern high-speed servo motors, its multi-planet configuration shares external load forces evenly to minimize internal bearing stress. Featuring selectable single-stage precision levels that scale down to a micro-backlash rating of ≤1 arcmin, the SPX140 delivers exceptional tracking accuracy, low operating temperatures, and remarkably quiet motion performance.

Engineering & Kinematic Performance Matrix

Torque Profile: 342NM – 650NM Constant Rated Output Torque

Single-Stage Ratios: 3 / 4 / 5 / 6 / 7 / 8 / 10

Dual-Stage Ratios: 12 / 15 / 20 / 25 / 30 / 35 / 40 / 50 / 60 / 70 / 80 / 100

Single-Stage Backlash Options: ≤ 1 arcmin (Micro) / ≤ 3 arcmin (Precision) / ≤ 5 arcmin (Standard)

Dual-Stage Backlash Options: ≤ 3 arcmin (Micro) / ≤ 5 arcmin (Precision) / ≤ 7 arcmin (Standard)

Acoustic Emission: Ultra-Quiet Running Signature ≤ 65 dB

Lubrication System: Factory-Sealed Lifetime Synthetic Gear Grease

Environmental Seal: IP65 Ingress Protection Certified

Thermal Threshold: Wide Continuous Envelope From -10°C up to +90°C

Mounting Versatility: Universal Multi-Directional / Omni-Directional Orientation

Kinematic Integrity & Automation Synergy

Mechanical Component	Engineering Logic	Process Synergy
Optimized Helical Gearing	Coaxial Mesh Logic \| Continuous Tooth Engagement	Ensures a smooth, quiet contact profile that lowers acoustic resonance and mechanical vibrations down to less than 65 dB.
IP65 Synthetic Lip Seals	Enclosure Protection Logic \| Fluid & Particulate Defense	Forms a secure, dust-tight barrier that protects internal gear meshes from factory spills, moisture, and fine environmental dust.
Advanced Synthetic Grease	Thermal Regulation Logic \| Lifetime Lubricating Layer	Maintains an optimal lubrication film at high cycling speeds without thinning or leaking across the full -10°C to +90°C window.

Structural Engineering & Motion Profile Protection

Inline Space-Saving Layout & Balanced Axial Synergy

In high-speed automated assembly lines and modern packaging architectures, maintaining tight axial alignment is critical for preventing torsional vibrations and premature shaft wear. The SPX140 resolves these constraints using an inline coaxial configuration. This balanced straight-line assembly allows servo motor torque to transfer seamlessly through the gear train up to 650NM, keeping the entire drive assembly compact and structurally sound.

Low Lost-Motion Precision & Rigid Gearing Security

Excellent positioning accuracy and strong structural resistance to tooth deflection are foundational principles of our 140mm inline planetary design. Built with precision-ground, gas-nitrided gear wheels mounted in a robust, high-strength housing, this reducer manages sudden indexing stops and quick direction reversals smoothly. This micro-matched gear interface allows for selectable single-stage play levels down to ≤1 arcmin, delivering precise tracking performance.

Omni-Directional Mounting & Clean Industrial Finish

Precision automation elements should blend versatile installation capability with a professional design look. Featuring an omni-directional universal mounting profile, the SPX140 system configures easily into specialized machine spaces at any orientation angle your layout demands. The rugged exterior shell protects internal components from sudden impact forces while providing a clean appearance that fits premium industrial designs.

Fulfillment & Engineering Excellence

As a global supply partner for advanced automation system integrators and precision machinery builders, we execute strict factory validation on every single SPX140 configuration:

Technical Rigor: Each individual unit goes through 100% factory verification tests, checking low noise thresholds (≤65 dB), IP65 seal structural integrity under pressure, and dual-direction torque consistency.
Reinforced Origin: Machined from premium high-tensile alloy steel with precision shaved tooth profiles, gas-nitrided to create hard wear surfaces backed by a ductile, impact-resistant inner core.
Customization Logic: Fully customizable input flanges tailored to major international servo motor brands, customizable output shafts (keyed, smooth, or splined), and special synthetic grease fills optimized for cleanroom or extreme thermal environments.

Technical Support FAQ

Q1: What makes the SPX140 inline planetary drive particularly suited for noise-sensitive automated environments?

A: The SPX140 features a highly advanced helical tooth profile that maximizes contact ratios while lowering friction ripples. Combined with rigid internal bearing alignments, it holds operating noise levels down to an ultra-quiet ≤65 dB ceiling, even under heavy duty cycles.

Q2: How does the SPX140 maintain its micro backlash options (≤1 arcmin) over long production runs?

A: The low backlash accuracy is maintained by our gas-nitrided gear treatments and high-grade synthetic grease. This surface hardening process protects tooth geometry against frictional wear, ensuring precise positioning over an extended operating life.

Q3: Can the SPX140 gearbox be safely mounted vertically in high-speed pick-and-place systems?

A: Yes. Thanks to its omni-directional universal mounting logic and fully sealed IP65 grease enclosure, the SPX140 functions reliably at any mounting angle without risking grease leakage or compromising internal bearing lubrication paths.