7024791 / K9006602A Gear Shaft for Doosan DX75, DX75R, DX80R

   The 7024791 / K9006602A shaft is a critical link in the mechanical power transmission of Doosan’s 7-to-8 ton excavator class. Given the high-frequency start-stop nature of excavator operation, this shaft is manufactured from high-tensile alloy steel and features precision-cut gear teeth. It is designed to handle the "shock loads" encountered when the operator initiates a sudden swing or encounters an obstacle during travel.

The SPARKLING MACHINERY NEW 7024791/K9006602A Shaft;Gear Photo:

Why Choose the SPARKLING 7024791/K9006602A Shaft;Gear?

• • • • • • • • • • • • • • • • • • • • • • • • • • • • •    - Induction-Hardened Splines: The splines and gear teeth undergo rigorous heat treatment to minimize wear and prevent "rounding off" under high torque.

                                                        •    - Balanced Design: Precision-machined to ensure vibration-free rotation, protecting the bearings and seals within the gearbox housing.

                                                        •    - Corrosion Resistance: Coated with industrial oil or phosphate to prevent rust during storage and early operation stages.

                                                        •    - OEM Compatibility: Fully interchangeable with both 7024791 and K9006602A part numbers, ensuring a perfect mesh with existing planetary gears.

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Q&A Section

Q1: What are the signs of a worn 7024791 gear shaft?

A: Common indicators include a "clunking" sound when the machine starts to swing or move, excessive "play" in the swing gear, or metallic shavings found during a gearbox oil change. If the splines fail completely, the motor will spin, but the machine will not move.

Q2: Should I replace the bearings when installing a new K9006602A shaft?

A: Yes. It is a best practice to replace the associated needle or ball bearings. If the old shaft failed due to wear, the bearings likely suffered micro-damage that could cause the new shaft to fail prematurely.

Q3: Is this part for the swing gearbox or the travel final drive?

A: While the part numbers are often shared across similar-sized gearboxes, the 7024791 is most commonly associated with the swing reduction unit on the DX75/80R series. Always verify your machine's parts manual to confirm the specific location for your serial number.

About SPARKLING MACHINERY:
   - Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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