The core of selecting a suitable reducer is to match the actual working conditions of load, speed, and installation conditions, and gradually screen based on core parameters and environmental requirements to avoid selecting too large or unsuitable models.

Step 1: Clarify the core operating condition parameters (selection basis)

Load requirement: Determine the rated load and peak load of the working machinery (such as starting shock), reserve 1.2-1.5 times the safety factor, and avoid overload damage.

Speed matching: Clarify the speed of the prime mover (motor/engine), the required output speed of the working machinery, and calculate the required transmission ratio (transmission ratio=input speed/output speed).

Installation conditions: Confirm the installation space (determining the volume/structure of the gearbox), installation method (horizontal/vertical/flange installation), and connection form of the input and output shafts (keyway/spline/coupling).

Step 2: Select the type of gearbox based on the working conditions

Heavy load, large transmission ratio (single-stage>50): Priority should be given to worm gear reducers (with good self-locking properties) or planetary gear reducers (with strong load-bearing capacity), suitable for crushers, cranes, etc.

High speed and efficiency (with reduced power loss): Choose a cylindrical gear reducer (with an efficiency of 85% -98%), suitable for continuous operation equipment such as fans, water pumps, and assembly lines.

Precision positioning, low noise (such as automation equipment): Choose precision planetary gear reducers (accuracy ≤ 3 arc minutes) or harmonic reducers (small size, no backlash), suitable for robots and CNC machine tools.

Space limited, lightweight: Choose planetary gearbox or harmonic gearbox, compact structure, suitable for drones and small automation equipment.

Step 3: Verify key parameters and adapt to the environment

Torque verification: The rated torque of the reducer should be ≥ working torque × safety factor, while considering additional loads such as starting impact and frequent start stop.

Efficiency and energy consumption: For long-term continuous operation scenarios (such as power generation and chemical industry), priority should be given to high-efficiency models (such as gear reducers) to reduce energy consumption costs.

Environmental adaptation: High temperature environments require materials and lubricants that are resistant to high temperatures, while humid/corrosive environments (such as ships and chemicals) require rust and anti-corrosion coatings. Dust environments require sealing protection.

Special requirements: Self locking (to prevent load drop) is required. Choose a worm gear reducer, and frequent forward and reverse rotation (such as a robotic arm) is required. Choose a planetary or gear reducer to avoid rapid wear of the worm gear reducer.

Step 4: Eliminate selection errors

Don't blindly pursue high torque: Excessive torque can easily lead to bulky size and increased costs, just match the actual needs.

Do not ignore installation accuracy: Installation deviation will exacerbate gear wear, and it is necessary to ensure the coaxiality of the input and output shafts.

Maintenance requirements are not overlooked: In harsh environments or difficult to maintain scenarios, priority should be given to maintenance free or long-life lubrication models.