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45mm Planetary Gearbox & Reducer

This 45mm planetary gearbox is designed for compact drives that prioritize a rigid mounting interface and predictable stage-based length selection, with a customizable output shaft for clean mechanical integration.

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  • 45mm Planetary Gearbox & Reducer Featured Image
Specs

Key Features

This GP45 configuration supports stage-based selection so you can balance packaging length, reduction level, and coupling interface without changing the gearbox diameter.

  • 45mm diameter housing for rigidity-focused compact assemblies
  • Multi-stage planetary structure supports a wider reduction span within the same footprint
  • Stage-based length options help control axial envelope early in design
  • Machining/sintering process options for different cost and performance targets
  • Customizable output shaft interface to match your coupling and load connection
technical Specs

Motors Specifications

Stages Length (mm) Gear Ratios
1 38.5 3.7:1
2 49 13.7:1, 19.2:1
3 52 51:1, 71:1, 99.5:1
4 70.5 188.6:1, 263.7:1, 368.7:1, 515.6:1

For additional customization or reference configurations, please feel free to contact us.

Why Choose us

SLW Motor Highlights

  • Stage choices that don’t force a redesign

    GP45 lets you move between stage levels while keeping the same 45mm interface, so you can adjust reduction targets without rebuilding the mounting structure around a new diameter.

  • A practical packaging step between mid and higher reductions

    The stage-to-length mapping makes it easier to decide early. If your layout can accept the 3-stage envelope, you can reach the controlled-motion ratio class without jumping straight to the longest configuration.

  • Ratio options that support target-speed tuning

    Some GP45 ratios are not “rounded” on purpose, which helps when you’re trying to land a specific output speed window after accounting for motor speed, load behavior, and controller limits.

  • Rigid mounting face for alignment-sensitive assemblies

    When coupling alignment, radial load, or structural stiffness is a priority, a 45mm gearbox body is typically selected to reduce interface deflection and keep the drive feel more consistent.

Custom

Beyond the Standard: Performance Customized

  • 01
    Smart Wiring & Lead Arrangement
    Lead routing is thoughtfully planned around mounting faces and coupler clearances, ensuring wiring never competes with the compact gearbox envelope for seamless assembly.
  • 02
    Precision Output Shaft Interface
    Customize shaft end geometry to your coupling method, maintaining stable and repeatable load connections—especially critical in higher reduction stages like 188.6:1 and above.
  • 03
    Installation Orientation Optimization
    Share mounting and load directions to ensure internal configurations perfectly align with your real axial and radial loads, enhancing reliability.
  • 04
    Control System Synchronization
    Tune controller acceleration, braking, and holding to match the reduction level, minimizing repeated peak torque events and improving smoothness in motion control.
  • 05
    Application-Specific Adaptation
    Provide duty cycle, inertia, and output targets so stage selection mirrors actual operating conditions—not just the highest reduction ratio by default.
  • Smart Wiring & Lead Arrangement
  • Precision Output Shaft Interface
  • Installation Orientation Optimization
  • Control System Synchronization
  • Application-Specific Adaptation

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FAQ

Frequently Asked Questions

Higher stage counts are typically selected to reach higher reductions while keeping the same 45mm interface and a predictable length step for packaging.

What is the easiest way to choose the stage for GP45?
Start from the space you can allocate in the axial direction, then choose the stage that fits that envelope before narrowing down the ratio inside that stage group.
Why are some ratios not round numbers?
They are typically used to tune output speed more closely to a target window after real system losses and control behavior are considered.
If my system needs steadier motion rather than speed, which stage direction should I lean toward?
Steadier motion is typically achieved by moving toward higher stage configurations, as they provide a higher reduction range within the same diameter.
What should I prepare if I need a custom output shaft?
Your coupling type, shaft end requirement, installation constraint, and whether the load is mainly radial, axial, or mixed.
Is GP45 more suitable when mounting stiffness matters?
Yes. A larger diameter gearbox body is typically selected when the assembly is more sensitive to alignment, rigidity, or load-induced deflection.
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