Tapered Roller Bearing
Конический роликовый подшипник
Rodamiento de rodillos cónicos
The 800556965 Tapered Roller Bearing is a precision‑engineered rolling element bearing designed to support heavy radial and axial loads in wheel hubs, differentials, and transmission assemblies of XCMG articulated dump trucks. This genuine OEM component ensures smooth rotation, accurate shaft alignment, and extended service life under the most extreme operating conditions. Manufactured from high‑grade case‑hardened chrome steel with precision‑ground raceways and rollers, the 800556965 tapered roller bearing delivers exceptional load‑carrying capacity, fatigue resistance, and long‑term reliability, making it an indispensable component for maintaining driveline integrity and machine uptime in the most demanding mining, quarrying, and heavy construction environments.
The 800556965 Tapered Roller Bearing is a precision‑engineered rolling element bearing designed to support heavy radial and axial loads in wheel hubs, differentials, and transmission assemblies of XCMG articulated dump trucks.
As a genuine OEM component, this bearing ensures smooth rotation, accurate shaft alignment, and extended service life under the most extreme operating conditions.
In heavy‑duty mining and construction applications, driveline bearings are subjected to high impact loads, continuous operation, and contamination. The 800556965 tapered roller bearing is engineered to withstand these challenges while maintaining low friction and minimal heat generation.
Manufactured from high‑grade case‑hardened chrome steel with precision‑ground raceways and rollers, this bearing delivers exceptional load‑carrying capacity, fatigue resistance, and long‑term reliability.
Its tapered design allows it to accommodate both radial and axial loads in a single bearing, making it ideal for axle and transmission applications where space is limited.
This component is a direct OEM replacement, restoring original driveline performance after wear or damage, ensuring that the vehicle maintains its power transmission efficiency and operational reliability.
The 800556965 Tapered Roller Bearing is fundamental to the efficient management of radial and axial loads in wheel hubs and differentials.
The tapered geometry of the rollers and raceways ensures that the line of contact between the rolling elements and the races intersects at a common point on the bearing axis, providing true rolling motion and minimising sliding friction.
This design allows the bearing to carry high radial loads while simultaneously handling significant thrust loads in both directions, making it ideal for the wheel ends of heavy vehicles.
A properly functioning tapered roller bearing maintains correct shaft preload, reducing deflection and ensuring accurate gear meshing in differentials and transmissions.
By reducing vibration and noise, the 800556965 bearing contributes to a smoother, quieter ride and extends the life of other driveline components.
Regular inspection of bearings for noise, play, or overheating is recommended. Any signs of wear or damage should be addressed immediately to prevent catastrophic driveline failure.
The 800556965 Tapered Roller Bearing features a meticulously engineered geometry that optimises load distribution, friction reduction, and sealing effectiveness.
The raceways are precision‑ground to achieve a surface roughness of Ra ≤ 0.4 µm, ensuring smooth, consistent rolling contact and reducing wear.
The rollers are manufactured to Grade 2 precision, with a taper angle and profile that ensure uniform load distribution along the entire roller length, eliminating edge loading.
The cage is made from pressed steel, providing robust spacing and guidance for the rollers while allowing for high‑speed operation and adequate lubrication flow.
The bearing is available in both open and sealed variants; the sealed version includes integral rubber seals that retain grease and exclude contaminants, extending service life in harsh environments.
The overall tolerance class meets P0 (ABEC‑1), ensuring compatibility with standard shaft and housing fits used in XCMG equipment.
The bearing is designed to be easily installed and adjusted, with a standard internal clearance that allows for preload adjustment using shims or spacer rings.
The 800556965 Tapered Roller Bearing is manufactured from high‑grade GCr15 chrome steel, specifically selected for its excellent hardenability, wear resistance, and fatigue strength.
The rings and rollers undergo a controlled carburising process, followed by quenching and tempering to achieve a surface hardness of 60–64 HRC while maintaining a tough, ductile core.
This hardness level provides the necessary resistance to plastic deformation under heavy loads while maintaining sufficient toughness to withstand impact shocks.
The stabilisation treatment ensures that the bearing retains its dimensional accuracy even after exposure to high temperatures during operation.
The combination of high‑quality material and precise heat treatment results in a bearing that delivers consistent performance over an extended service life, reducing the frequency of replacements.
The 800556965 Tapered Roller Bearing is produced in ISO 9001 and ISO 14001 certified facilities, adhering to the highest quality and environmental standards.
The raw steel is sourced from approved mills and undergoes rigorous incoming inspection, including chemical composition analysis, non‑metallic inclusion rating, and grain size evaluation.
The grinding process is performed on state‑of‑the‑art CNC machines with in‑process gauging, ensuring that all critical dimensions – bore, outer diameter, width, and taper angle – are maintained within tight tolerances.
Each bearing is 100% inspected for dimensional accuracy, radial runout, and axial runout using precision measurement instruments.
Noise and vibration levels are tested using specialised equipment to ensure that the bearing operates smoothly and quietly.
The grease fill quantity is precisely controlled, and the seals (if fitted) are checked for proper seating and sealing effectiveness.
These rigorous quality assurance measures guarantee that every 800556965 bearing delivers the reliability, performance, and durability expected from a genuine XCMG component.
The 800556965 Tapered Roller Bearing is a critical component for ensuring the long‑term reliability and safety of XCMG articulated dump trucks.
A worn or failed bearing can cause shaft misalignment, excessive gear backlash, and overheating, leading to premature failure of gears, seals, and other adjacent components.
In wheel hub applications, a seized bearing can result in the wheel locking up, causing loss of control and serious accidents.
The 800556965 bearing prevents these issues by providing a durable, low‑friction interface that maintains shaft alignment and absorbs radial and axial loads effectively.
Regular inspection of bearings is recommended during routine maintenance. Signs of noise, play, or rough rotation indicate that the bearing should be replaced.
Using a genuine XCMG 800556965 bearing ensures that the replacement component meets the original design specifications, providing the intended level of performance and durability.
The 800556965 Tapered Roller Bearing is specifically designed for use in XCMG articulated dump trucks, including the XDA30, XDA40, XDA45, XDA45U, XDA60, and TA30 series models.
These vehicles are deployed in a wide range of demanding applications, including open‑pit mining, quarrying, heavy construction, water conservancy, harbour operations, and large‑scale earthmoving projects.
The bearing is used in wheel hub assemblies, differential carrier bearings, transmission shaft supports, and axle pinion bearings.
Beyond articulated dump trucks, this bearing can also be used in other XCMG equipment that shares the same bearing size and specification, such as wheel loaders, excavators, and motor graders.
The bearing’s standard dimensions (55x100x27 mm) make it a versatile replacement part for a wide range of heavy machinery, providing flexibility for maintenance and repair operations.
When replacing a worn or damaged bearing, using the genuine 800556965 part ensures correct fit, material quality, and performance, safeguarding the equipment from premature failure.
It is always recommended to inspect the shaft and housing when installing a new bearing, and to replace any worn components to ensure a reliable assembly.
Installing the 800556965 Tapered Roller Bearing correctly is essential to achieve its intended performance and service life.
Before installation, clean the bearing, the shaft, and the housing to remove any dirt, debris, or old grease. Inspect the bearing for any signs of damage, corrosion, or contamination.
Apply a thin, even layer of clean bearing grease to the shaft and the housing bore to facilitate assembly and prevent fretting corrosion.
Use a suitable press or installation tool to seat the bearing onto the shaft or into the housing, applying force only to the ring that is being press‑fitted (inner ring for shaft fit, outer ring for housing fit). Avoid hammering directly on the bearing.
Ensure that the bearing is seated squarely and fully against the shoulder, and that the rollers are correctly positioned within the cage.
After installation, adjust the bearing preload as per the manufacturer’s specifications using shims or spacer rings, and verify that the shaft rotates smoothly without binding.
During routine maintenance, inspect the bearing for signs of wear, overheating, or lubricant leakage. Replace the bearing immediately if any abnormalities are found.
Keeping a spare 800556965 bearing on hand can help minimize downtime during unexpected repairs, ensuring that the vehicle can be returned to service quickly.
The 800556965 Tapered Roller Bearing is manufactured in accordance with the highest quality standards, with every production batch subjected to comprehensive testing and inspection.
The facility is certified to ISO 9001 and ISO 14001, and the manufacturing process follows XCMG’s stringent OEM specifications, ensuring that each bearing meets the required performance criteria.
Dimensional accuracy is verified using precision measurement equipment, with bore, outer diameter, width, and taper checked against the engineering drawings.
Hardness testing is performed on every batch using Rockwell testers, ensuring the bearing meets the 60–64 HRC specification.
Noise and vibration tests are conducted using acoustic emission testing to ensure smooth operation and compliance with ISO 15242 standards.
Grease fill quantity and cleanliness are verified, and the seals (if fitted) are tested for proper fit and sealing effectiveness.
These rigorous quality assurance measures guarantee that every 800556965 bearing delivers the reliability, performance, and durability expected from a genuine XCMG component.
Using genuine XCMG 800556965 bearings ensures proper fit, optimal load handling, and compatibility with the vehicle’s driveline systems.
The 800556965 Tapered Roller Bearing is an essential component for ensuring the load‑carrying capacity, rotational accuracy, and driveline reliability of XCMG articulated dump trucks.
As a non‑engine mechanical part, this bearing provides a durable, low‑friction interface that supports both radial and axial loads, maintaining shaft alignment and reducing wear on gears and seals.
Its case‑hardened chrome steel construction, precision grinding, and advanced material technology ensure exceptional fatigue resistance, impact strength, and long‑term performance in the most demanding mining, quarrying, and construction environments.
With its precise OEM fitment and uncompromising quality, this bearing offers outstanding value and peace of mind for fleet operators, maintenance professionals, and equipment owners alike.
Choosing the genuine XCMG 800556965 bearing protects your equipment from driveline failures, reduces maintenance costs, and ensures that your articulated dump truck remains productive, reliable, and safe.
Always source genuine XCMG parts from authorised distributors to guarantee authenticity, compliance with OEM specifications, and long‑term performance.
Whether for planned maintenance or emergency repairs, the 800556965 tapered roller bearing is the trusted choice of professionals who demand the highest standards of quality and reliability in their heavy equipment.
