Planetary Slewing Gear Reducers

MANUFACTURER DOCUMENTATION

Overview

Weili’s slewing reducer is intended for the rotary mechanism of construction machinery. The official product page documents a planetary reduction arrangement and lists the available ratio and maximum-output-torque envelopes. A slewing-drive quotation should include the driven ring gear, allowable pinion loads, required rotation speed and the full acceleration and stopping cycle. Maximum catalog torque is not a continuous-duty rating and does not independently establish the capacity of the whole slew bearing or machine. Match the selected hydraulic motor, brake and installation interface to the manufacturer’s drawing and request an application-specific mechanical calculation.

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Published series specifications

Series ranges describe the product family. They are not interchangeable operating points.

Ratio envelope

16–760

Maximum output torque envelope

7–620 kNm (7,000–620,000 Nm)

Transmission

Multistage planetary

Brake

Integrated parking brake

Motor options

Variable- or fixed-displacement hydraulic motors

Output interface

Output gear meshes with machine ring gear

Continuous rated torque

Not stated on the public source page

Model configuration table

The source page provides a series overview rather than a complete model/ratio rating table. Use the manufacturer link above for selection drawings and confirm the precise operating point before ordering.

Before you specify this gearbox

A planetary gearbox shares load across several planet gears. Confirm nominal and peak torque separately, together with ratio, input speed, backlash and mounting dimensions.

• Confirm continuous, peak and emergency-stop load limits separately.
• Match the motor flange, shaft, mounting orientation and lubrication requirements.
• Request the current drawing revision and selection calculation from the manufacturer.

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Sizes

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Output torque

22–2,600 kNm

Ratio

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A helical planetary series with a double-supported output structure. Compare frame size and ratio together: a larger reduction ratio does not necessarily increase the catalog torque rating.

Frame sizes

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Ratio

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Rated output torque

10–2,000 Nm, depending on frame and ratio

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