Short Description:

These internal spur gears and internal helical gears are used in planetary speed reducer for construction machinery. Material are middle carbon alloy steel . Internal gears usually could be done by either broaching or skiving ,for big internal gears sometimes produced by hobbing method as well .Broaching internal gears could meet accuracy ISO8-9 ,skiving internal gears could meet accuracy ISO5-7 .If do grinding ,the accuracy could meet ISO5-6.


Product Detail

Product Tags

Features

Planetary speed reducer used in large and medium-sized construction machinery  has many characteristics compared with other types of gearbox, such as compact structure, high transmission efficiency, small between tooth load, stiffness big, easy to realize power shift transmission, etc. This kind of gearbox consists of several basic planetary row by fitting the transmission speed reducer, rely on shift gear shifting clutch and brake control component. 

Application

The planetary reduction mechanism is used in the transmission part of low speed and high torque, especially in the side drive of construction machinery and the rotating part of tower crane.This kind of planetary reduction mechanism requires flexible rotation and strong transmission torque capacity.

Planetary gears are gear parts widely used in planetary reduction. At present, the requirements for the planetary gears to be processed are very high, the requirements for gear noise are high, and the gears are required to be clean and free of burrs. The first is the material requirements; the second is that the tooth profile of the gear meets the DIN3962-8 standard, and the tooth profile must not be concave , third, the roundness error and cylindricity error of the gear after grinding are high, and the inner hole surface .There are high roughness requirements. Technical requirements for gears

Manufacturing Plant

Cylindrical Gear
Turning Workshop
Gear Hobbing, Milling and Shaping Workshop
belongear heat treat
Grinding Workshop

Production Process

forging
quenching & tempering
soft turning
hobbing
heat treatment
hard turning
grinding
testing

Inspection

cylindrical gear inspection

Reports

We will provide compete quality reports to customers before every shipping like dimension report ,material cert ,heat treat report ,accuracy report and other customer’s required quality files .

5007433_REVC reports_页面_01

Drawing

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Dimension report

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Heat Treat report

Accuracy Report

Accuracy Report

5007433_REVC reports_页面_11

Material Report

Flaw detection report

Flaw Detection report

Packages

微信图片_20230927105049 - 副本

Inner Package

ring gear inner pack

Inner Package

Carton

Carton

wooden package

Wooden Package

Our video show

Internal Gear Shapping

How To Test Internal Ring Gear And Make The Accurancy Report

How Internal Gears Produced To Speed Up Delivery

Internal Gear Grinding And Inspection

Internal Gear Shapping


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