GM35

GM35 (SK200)

Applicable models: 20-25 tonnage hydraulic crawler driving device,

Frame mounting hole 20-M20, frame inner diameter 327;

Drive tooth mounting hole 22-M18, drive toothinner diameter 410;

SK200- 3/5/5.5/6/7

GM35 (PC200)

The GM35 final drive series is a widely used family of travel motor assemblies manufactured by Nabtesco, and while the same "GM35" designation is applied to units for both the Komatsu PC200 and Kobelco SK200, they are not identical or directly interchangeable. The key differences lie in gear ratios, part numbers, and internal component specifications.

Introduction: 

The GM35 is a widely used series of travel motor and final drive assemblies manufactured primarily by Nabtesco (originally Teijin Seiki). It is a critical component for crawler excavators, commonly found in the 15 to 35-ton machine class. The series is known for its robust, integrated design that combines a hydraulic motor, a planetary gearbox, and a parking brake into a single unit.

The GM35 series includes several variants, but they share a common design philosophy. The table below outlines the key technical specifications for the popular GM35VL model, which serves as a good reference.

Key Variants & Compatibility

The GM35 series has several distinct variants, each designed for specific excavator models and applications. The suffix (e.g., VA, VL, VC) is crucial for identifying the correct unit.

GM35VA

This variant is commonly used on 15–25 tonne crawler excavators. It is often found in machines from Hyundai, Doosan, Samsung, and Kato.

Hyundai: R110-7A, R140LC-7, R140LC-7A, R180LC-7, R180LC-7A, R210LC-7, R210LC-7A, R210LC-7H, R220LC-7H, R250LC-7, R250LC-7A

Doosan / Daewoo: Solar 200, Solar 225, S220-3, DX225, DH225-7, DH225-9

Samsung: SE210-2

Kato: HD800, HD1250-5

Hyundai: R220-5

Other: R210, R200, HD900

GM35VL

This is a very common variant used on a broader range of machines, including 20 to 35-ton excavators. It is a frequent replacement for Komatsu PC200 series machines.

Komatsu: PC200-3, PC200-5, PC200-6, PC200-7, PC200-8, PC220-6, PC220-7, PC210-6

Volvo: EC180BLC, EC210B, EC210LC, EC220B, EC220C, EC240B, EC240C

Hyundai: R160LC-7, R180-7, R205-7, R210LC-7, R220-7, R250-7, R260-5

Doosan / Daewoo: DH220-5, 225

Liugong: CLG230, CLG922LC

Kobelco: SK200-6E

Sany: SY210, SY215, SY230, SY235

GM35VC

This variant is also referenced in parts catalogs, though specific compatible models are less explicitly listed in the search results. It is part of the same GM35 family and shares the core design.

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