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When a loaded Shacman X3000 turns, the rear tires travel different arcs. The planetary gears inside the inter-wheel differential allow that difference — rotating on the cross shaft, meshing with the side gears, letting each wheel turn at its own speed without binding the driveline. When a planetary gear wears, the axle growls during turns, tires scrub, and the differential lock may not engage.
We are Shaanxi Tolizer Machinery Equipment Co., Ltd., a supplier of heavy-duty truck and axle components for Shacman, TONLY, SINOTRUK, LiuGong, and FAW distributors and workshops worldwide.
Our DZ90149320010 Planetary Gear replaces the original Hande component. It is the inter-wheel differential planetary gear for the Hande HDZ300 rear axle on Shacman X3000. Also fits HDM300 (after H150901059). Pairs with cross shaft HD95149320039 and side gear 81.358106.0036. Weight: 0.8 kg. Inner diameter: 31 mm.
Choosing this gear means choosing a carburized, precision-ground gear that restores smooth wheel differentiation.
Surface Treatment: Forged 20CrMnTi, carburized to HRC 58–62. Teeth and bore machined after heat treatment. Protective coating for storage.
Manufacturing Process: Forged, rough-machined, carburized, quenched. Teeth precision-ground, bore honed to 31 mm. Inspected for tooth thickness, bore diameter, hardness.
Structure Diagram: Cylindrical gear with external teeth and 31 mm internal bore. Fits over HD95149320039 cross shaft, meshes with 81.358106.0036 side gear at 90°.
Installation Position: Installs on cross shaft inside inter-wheel differential carrier on HDZ300 rear axle. Rotates on shaft, meshing with side gear.
Product Principle: Planetary gears rotate on the cross shaft when the differential differentiates. Equal traction: assembly turns as one unit. Turning: gears rotate, allowing wheel speed difference. Bore diameter and finish are critical for smooth rotation on the cross shaft.
Diagnostic Note: Rumbling or grinding loudest when turning — planetary gear teeth worn. Uneven rear tire wear left/right — differential not differentiating smoothly. Lock light flashes but does not stay on — gear or lock teeth worn. Metal debris in rear axle oil — gears wearing; drain and inspect. Before replacing, check cross shaft and side gear condition.
Rumbling when turning on a Shacman X3000 or F3000? Drain rear axle oil, check for metal debris. Inspect cross shaft and side gear. If planetary gear teeth are worn, this gear is the fix. Send truck model, axle model, symptoms. We will confirm DZ90149320010 as correct fit for your Hande HDZ300 rear axle and respond with pricing, lead time, and tooth profile inspection data.
Contact Tolizer today to secure your planetary gear supply.
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