XCMG Retaining Ring OEM 800172422 – Heavy‑Duty Axial Lock for Articulated Dump Truck Components
Retaining Ring
Стопорное кольцо
Anillo de retención
The XCMG Retaining Ring Retaining Ring is a precision‑engineered axial lock used to secure components such as bearings, gears, shafts, and pins in the drivetrain and chassis of XCMG articulated dump trucks (ADTs). This genuine XCMG 800172422 retaining ring is manufactured from high‑carbon spring steel, heat‑treated for uniform hardness, and coated with a corrosion‑resistant finish. XCMG XDA30, XDA40, XDA45, XDA45U, and TA30 ADTs depend on 800172422 to maintain precise axial positioning, eliminate unwanted end‑play, and prevent component separation under extreme shock loads and vibration.
The XCMG XDA45U articulated dump truck is powered by a Mercedes‑Benz OM460LA diesel engine producing 360 kW (483 hp) and 2,300 N·m of torque. Every rotating shaft and bearing in the drivetrain is secured by retaining rings like 800172422. Without a properly functioning retaining ring, bearings can slide axially on their shafts, causing gear misalignment, accelerated wear, and complete assembly failure. The retaining ring 800172422 is designed to snap precisely into a machined groove, creating a positive mechanical lock that withstands high axial loads and vibration.
In the final drive planetary hubs of XCMG ADTs, the retaining ring 800172422 locks the planet carrier onto the output shaft. In wheel hubs, it secures the bearings against axial movement. In transmissions, it retains gears and thrust washers. A missing or damaged retaining ring can lead to catastrophic drivetrain failure, making the genuine XCMG 800172422 essential for mining fleet reliability.
Advanced Manufacturing of OEM 800172422
The retaining ring 800172422 is precision‑stamped from 65Mn spring steel, a high‑carbon alloy known for its excellent fatigue resistance and springback characteristics. After stamping, each ring undergoes a controlled heat‑treatment process to achieve uniform hardness of 46‑52 HRC across the entire cross‑section. Unlike cheaper alternatives that are simply quenched, the genuine XCMG 800172422 ring is tempered to balance hardness with ductility, preventing brittle fracture under shock loads.
The manganese phosphate coating (15‑25 µm) applied to the retaining ring 800172422 provides two critical functions: it prevents galling between the ring and the groove during installation, and it offers corrosion resistance exceeding 240 hours of salt spray testing. Each ring is 100% eddy‑current tested for micro‑cracks, and random samples are batch‑tested for axial load capacity and fatigue life. This quality control ensures that the retaining ring 800172422 meets or exceeds DIN 471 standards.
Field Performance of 800172422 vs. Aftermarket
XCMG field data from XDA40 and XDA45U fleets operating in Australian iron ore mines shows that the genuine retaining ring 800172422 consistently exceeds 15,000 service hours without failure. Aftermarket retaining rings, often made from lower‑grade steel with inadequate heat treatment, fail prematurely due to cracking, permanent deformation, or loss of spring tension. In one documented case, aftermarket rings on a final drive failed after only 4,000 hours, causing the planet carrier to shift and destroying multiple gear teeth.
Common failure indicators for a worn retaining ring 800172422 include audible rattling or clicking from the drivetrain (indicating axial play), increased bearing noise, and visible gaps between the ring and the groove. When a ring fails completely, the retained component can move freely on its shaft, often leading to sudden, catastrophic drivetrain failure. Replacing a damaged ring with the genuine XCMG 800172422 restores proper axial locking and eliminates end‑play.
Proper Installation of the 800172422 Retaining Ring
Installing the retaining ring 800172422 requires standard external circlip pliers with tips that fit the ring’s ear holes. Before installation, inspect the shaft groove for any burrs, debris, or damage. The groove must have the correct width (2.1‑2.2 mm) and depth (35.0 mm diameter) for the ring to seat properly. Compress the ring using the pliers, slide it over the shaft end, and release it into the groove. The ring should snap into place with a distinct click and should not rotate freely in the groove. After installation, verify that the ring is fully seated and that there is no axial movement of the retained component.
Never reuse a retaining ring that has been removed. The act of compressing and expanding the ring reduces its spring tension, and a reused ring may not provide adequate axial retention. XCMG recommends replacing the retaining ring 800172422 whenever the associated bearing or gear is serviced, and always during a major drivetrain overhaul. Keep spare rings in a clean, dry environment away from corrosive chemicals.
Compatibility Across XCMG ADT Range
The retaining ring 800172422 is compatible with the full range of XCMG articulated dump trucks, including the XDA30 (30‑ton payload), XDA40 (39‑ton payload with 6×6 drive), XDA45 (45‑ton), XDA45U (41‑ton, OM460LA engine), and TA30 (30‑ton). It is dimensioned for the Mercedes‑Benz OM460LA inline 6‑cylinder engine platform as well as the OM502 V‑8 engine. The retaining ring is also used in XCMG wheel loaders (LW series) and motor graders (GR215, GR300, GR350) that share the same drivetrain architecture.
For the Yuchai YC6K and Weichai WP13 engine platforms used in certain ADT configurations, the retaining ring 800172422 fits standard DIN 471 grooves. Always consult the XCMG parts catalog for engine‑specific clearance specifications. XCMG offers complete retaining ring service kits that include the retaining ring 800172422, replacement circlip pliers (for worn tools), and a groove inspection gauge. Use the inquiry button above to request a quote or place an order for genuine XCMG retaining ring 800172422.
XCMG and the XCMG logo are registered trademarks of Xuzhou Construction Machinery Group Co., Ltd.
OEM part number 800172422 is an original manufacturer reference for a genuine XCMG retaining ring. All specifications are derived from XCMG engineering standards and field validation data.
Hot Sale Genuine XCMG Articulated Dump Truck Parts
