AT-L Series Right Angle Servo Gearbox – Dual Output Shaft Right-Angle Gear Reducer

Product Overview

The AT-L Series right angle servo gearbox is an advanced right-angle gear reducer engineered for high-precision automation, robotic systems, and industrial servo applications. Built around a dual-output-shaft structure and a compact 90 degree transmission layout, this gearbox ensures robust performance, exceptional torque density, and outstanding motion accuracy. Its durable, high-strength construction makes it ideal for demanding, high-cycling servo environments.

Designed with SCM415 nickel-chromium alloy steel and manufactured using precision spiral bevel gear technology, the AT-L Series right angle Servo Gearbox delivers superior wear resistance, long service life, and low noise under high-speed servo motor operation. The combination of a planetary gear mechanism and a spiral bevel gear set provides exceptional efficiency and remarkable torsional rigidity.

The AT-L Series right angle servo gearbox seamlessly integrates with the world’s leading servo motor brands, including Mitsubishi Electric, Yaskawa, Panasonic, Delta Electronics, and Siemens. This wide compatibility makes it an ideal choice for OEM integrators, machine builders, and automation system providers looking for a high-performance right-angle servo drive solution.

The AT-L Series right angle servo gearbox is engineered for precision motion transmission where space constraints require a compact right-angle configuration. The reducer integrates a high-efficiency planetary gear structure with an ultra-precise spiral bevel gearset, enabling low-backlash performance suitable for applications where smooth, repeatable motion is critical.

The AT-L Series right angle servo gearbox is available in sizes from AT065 to AT280, with reduction ratios from 3:1 to 100:1, and torque outputs from 15 Nm up to 1600 Nm. With a mounting design that supports installation from five sides and a compact structure that minimizes machine footprint, the AT-L Series provides unmatched versatility.

To ensure long-term reliability, the gearbox uses fully synthetic grease, operates within a temperature range of −10°C to 90°C, and maintains a long service life of 20,000 hours under rated conditions.

Key Features

  • High-Strength Spiral Bevel Gear Construction
    Precision-machined spiral bevel gears ensure smooth transmission and minimal vibration.
    SCM415 alloy steel hardened to HRC60 delivers outstanding wear resistance and reliability.
    Ideal for continuous high-speed servo operation.
  • High Mechanical Efficiency
    Combined planetary and spiral bevel gear system provides ≥98% efficiency, improving overall energy utilization.
    Reduced thermal loss extends motor and reducer lifespan.
  • Excellent Rigidity and Load Capacity
    Dual tapered roller bearings enhance load capacity and rigidity.
    Handles heavy radial and axial loads, with output shaft radial load ratings up to 18,000 N.
    Suitable for applications with frequent load fluctuations.
  • Ultra-Low Backlash for Precision Motion
    Backlash maintained at ≤6 arcmin, ensuring accuracy in CNC and robotic positioning.
    Ideal for synchronized multi-axis systems.
  • Multiple Output Shaft Configurations
    To meet different industrial requirements, the AT-L Series offers:
    Single output shaft;
    Dual output shaft;
    Hollow output shaft;
    Hollow flange output;
    Tapered hollow clamping type;
    Linear screw output type;
    Threaded linear output type
  • Compact, Space-Saving Design
    Five-sided mounting options reduce mechanical design constraints.
    Small footprint ideal for compact industrial machines and robotic systems.
  • Wide Servo Motor Compatibility
    The AT-L Series is fully compatible with major servo motor manufacturers, including:
    Mitsubishi Electric Servo Motors – widely used in precision automation systems;
    Yaskawa Sigma Series Servo Motors – known for reliability and advanced motion control;
    Panasonic MINAS Servo Motors – ideal for high-speed, high-precision motion;
    Delta ASDA Servo Systems – popular in automation equipment and robotics;
    Siemens SINAMICS Servo Motors – powerful solutions for high-end industrial machinery;
    This broad compatibility enables easy integration into existing systems with minimal engineering effort.

Technical Information

SpecificationUnitStageRatioAT065AT075AT090AT110AT140AT170AT210AT240AT280
Rated Output Torque / T2NNm11254578150360585130021503200
Rated Output Torque / T2NNm11.5254578150360585130021503200
Rated Output Torque / T2NNm12244268150330544122020103050
Rated Output Torque / T2NNm13183354120270450102016502850
Rated Output Torque / T2NNm1413284810022437686014102300
Rated Output Torque / T2NNm151225408519632074012102000
Max Acceleration Torque / T2BNm11~51.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque1.5×Rated Output Torque
Max Acceleration Input Speed / n1srpm11~5750065005500450035003000220020001700
Backlasharcmin11~5≤6≤6≤6≤6≤6≤6≤6≤6≤6
Allowable Radial Force / Fr (Input Shaft d1)N11~570095014502100270038007800960010500
Allowable Radial Force / Fr (Output Shaft d2)N11~590011001700270048006600115001600018000
Allowable Axial Force / Fa (Input Shaft d1)N11~5350425725105013501900390048005250
Allowable Axial Force / Fa (Output Shaft d2)N11~5450550850135024003300575085009000
Service Lifehr11~520000*20000*20000*20000*20000*20000*20000*20000*20000*
Efficiency / η%11~5≥98%≥98%≥98%≥98%≥98%≥98%≥98%≥98%≥98%
Operating Temperature°C11~5-10~90-10~90-10~90-10~90-10~90-10~90-10~90-10~90-10~90
Lubrication–11~5Fully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic GreaseFully Synthetic Grease
Noise Level (n1=1500rpm, No load)dB(A)11~5≤68≤70≤74≤76≤77≤78≤80≤82≤83
SpecificationUnitStageRatioAT065AT075AT090AT110AT140AT170AT210AT240AT280
Rotary Inertiakg·cm²110.511.303.167.7023.5758.99195.40369.34799.12
Rotary Inertiakg·cm²11.50.641.162.826.7419.3749.28155.45283.58595.78
Rotary Inertiakg·cm²120.441.112.706.3117.7545.35140.24249.74511.76
Rotary Inertiakg·cm²130.431.092.666.1717.1844.01134.95237.71483.06
Rotary Inertiakg·cm²140.431.092.656.1317.0643.70133.58234.72476.26
Rotary Inertiakg·cm²150.431.092.656.1217.0243.60133.14233.67473.58
Model No.UnitStageRatioAT065AT075AT090AT110AT140AT170AT210AT240AT280
L Serieskg11~52.64.26.811.619.834.866.298.1155.7
L1 Serieskg11~52.64.16.711.519.534.265.198.6153.4
H Serieskg11~52.53.96.411.018.131.660.089.4143.4
C Serieskg11~52.84.26.911.419.633.763.397.9149.1
R1 Serieskg11~52.64.16.711.519.534.265.198.6153.4
LM Serieskg11~53.55.69.015.224.142.481.4122.0190.9
RM Serieskg113.55.69.015.224.142.481.4122.0190.9
4M Serieskg113.55.69.115.424.842.682.5123.5193.3
AT-L DOUBLE OUTPUT SHAFT STEERING GEARBOX-Dimension

AT-L Series right angle Servo Gearbox Product Catalog (PDF)

Technical Drawings & CAD Files (STEP/IGES)

Installation Manual

Servo Motor Matching Guide

Dimension Charts

Applications

  • Robotics & Automation: Robotic arm joints; AGV and AMR drive systems; Pick-and-place machines
  • Machine Tools & CNC Equipment: Milling and drilling machines; 5-axis CNC systems; Grinding and turning centers
  • Packaging & Printing Machinery: High-speed packaging machines; Labeling lines; Precision printing systems
  • Industrial Automation Lines: Assembly systems; Conveying and sorting machines; Automated inspection lines
  • Energy & Motion Control Systems: Solar tracking; Smart factory automation; High-precision inspection equipment

With its high torque density and low backlash, the AT-L Series is particularly suited for precision motion control environments requiring accuracy, repeatability, and long-term operational stability.

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