SPX075 In-Line High-Performance Planetary Gearbox | Precision Low-Backlash Compact Drive

Optimize your machine layout efficiency and dynamic position tracking with the Planetary gear reducer SPX075, the versatile compact inline powerhouse of our elite SPX Series Planetary Gearbox lineup. Specifically engineered to balance high power density with an incredibly small physical footprint, this Compact Planetary reducer provides a constant rated output torque range of 100NM to 160NM inside a precision-machined 75mm frame. Built to pair smoothly with all standard mid-frame industrial servo motors, its multi-planet configuration shares external loads symmetrically to maximize torsional stiffness. Offering ultra-low backlash variants extending down to a micro-tier ≤1 arcmin, the SPX075 sets a premium performance benchmark for high-speed indexing, exceptionally quiet operation, and zero-maintenance longevity.

Engineering & Kinematic Performance Matrix

Torque Profile: 100NM – 160NM Continuous 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: ≤ 5 arcmin (Precision) / ≤ 7 arcmin (Standard)

Acoustic Emission: Ultra-Quiet Whisper Signature ≤ 60 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
Precision Helical Planetary Train	Coaxial Power Logic \| High-Contact-Ratio Meshing	Distributes internal driving forces evenly across multiple teeth, providing incredibly smooth torque delivery and cutting dynamic vibration.
IP65 Premium Viton Lip Seals	Enclosure Shielding Logic \| Absolute Leakage & Particle Defense	Blocks factory moisture, dust ingress, and automation lubricants from mixing, while safely containing the synthetic grease.
High-Performance Synthetic Grease	Thermal Logic \| Continuous Anti-Wear Lubricant Film	Prevents micro-friction and heating spikes across high-speed cycles, maintaining internal stability from -10°C up to +90°C.

Structural Engineering & Motion Profile Protection

Inline Coaxial Packing & Space-Constrained System Balance

In high-speed multi-axis automation and tight electronics packaging cells, keeping weight down and maintaining true concentric alignment along the main driving shaft is critical for stopping vibrational wear. The SPX075 satisfies this challenge through its sleek inline coaxial setup. This straight-line framework allows small and mid-sized servo motors to mount perfectly in-line with the driven load, translating up to 160NM of torque with minimal energy losses.

Ultra-Low Lost Motion & Precision Positioning Play

Predictable rotational accuracy and excellent resistance to structural twisting under cyclic load changes are fundamental pillars of our 75mm inline planetary framework. By integrating precision-ground, surface-hardened helical gears inside a thick, high-strength enclosure, this reducer handles sharp acceleration spikes and reverse indexing moves smoothly. This precise gear matching delivers selectable single-stage angular play down to ≤1 arcmin, keeping indexing exceptionally crisp.

Omni-Directional Adjustments & Clean Architectural Fit

High-end automation components should balance robust mechanical performance with clean industrial design. Featuring a flexible omni-directional universal mounting design, the SPX075 unit installs cleanly at any angle your layout blueprint requires. The smooth, anodized aluminum outer shell defends against external workplace dirt, providing a professional look that fits seamlessly with high-tech automated machinery lines.

Fulfillment & Engineering Excellence

As an international manufacturing partner for precision robotic system integrators and specialized automation apparatus builders, we enforce strict quality criteria across all SPX075 shipments:

Technical Rigor: Each completed gearbox undergoes 100% factory inspection, passing detailed acoustic audits to ensure an ultra-quiet noise floor (≤60 dB), IP65 seal structural checks, and multi-point backlash accuracy verification.
Reinforced Origin: Machined from premium high-tensile alloy steels utilizing advanced gear shaving steps, gas-nitrided to secure maximum gear tooth flank hardness paired with a ductile, impact-absorbing core.
Customization Logic: Fully customizable input adapter flanges to match major global servo motor brands, customizable output shafts (with keys, smooth, or splined configurations), and special low-outgassing or food-grade grease filling options for sterile laboratory or food processing lines.

Technical Support FAQ

Q1: What makes the SPX075 inline reducer run significantly quieter (≤60 dB) than larger industrial planetary gearboxes?

A: The low noise profile of ≤60 dB is a combined benefit of the smaller 75mm pitch circle diameter and high-precision helical gear grinding. Helical teeth mesh gradually, eliminating the harsh acoustic clicking typical of larger or lower-grade straight-cut spur gears.

Q2: Can the micro backlash option (≤1 arcmin) withstand continuous high-speed reversing cycles?

A: Yes, because our gas-nitrided gear treatment locks in deep surface hardness across all tooth contact faces. This minimizes friction wear, allowing the gearbox to hold its tight precision over a long operating lifecycle.

Q3: Is the factory synthetic lubrication truly maintenance-free for the entire life of the system?

A: Yes, the SPX075 is completely sealed at the factory with premium, shear-stable synthetic grease. Combined with our heavy-duty IP65 Viton lip seals, it prevents oil leakage and breakdown, removing the need for regular fluid changes.