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  • June 25, 2026

GK Series Gearbox Model Code – How to Read It


GK series gearbox reducer complete identification structure

Model example: KAZ107-Y3-4P-32.40-M1-A

The meanings of each paragraph are as follows:

Series code: K represents spiral bevel gear reducer

Installation form suffix: A=shaft mounted, F=flange mounted, AZ=shaft mounted small flange, S=shaft input

Machine base number: 37-187, the larger the value, the stronger the machine base volume and load-bearing capacity

Motor code: Y=ordinary three-phase asynchronous motor, YEJ=brake motor, YVP=variable frequency motor

Motor parameters: 3 represents 3KW power, 4P represents 4-pole motor

Transmission ratio: 32.40 is the precise reduction ratio

Installation position: M1~M6 correspond to 6 standard installation postures

Output axis direction: A/B/A+B corresponds to different output axis orientations

Sub-series:

  • GK = Foot mounted

  • GKF = Flange mounted

  • GKA = Hollow shaft

  • GKAF = Hollow shaft + flange

  • GKAZ = axis small flange installation

  • GKAT = axle with anti rotation arm

K series gearbox reducer

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