800371945
XCMG Inner Friction Disc 800371945 – Precision Friction Component for ADT Brake and Driveline Systems
2026-08-10
800372022
XCMG Disc 800372022 – Precision Engineered Friction and Spacing Component for ADT Brake and Driveline Systems
2026-08-10

XCMG Disc 800372020 – Precision Engineered Friction and Spacing Component for ADT Brake and Driveline Systems

Disc XCMG 800372020
Disc
Диск XCMG 800372020
Диск
Disco XCMG 800372020
Disco

OEM 800372020 The XCMG Disc (800372020) is a genuine OEM precision‑machined component engineered for critical friction, spacing, and load‑transfer functions within the brake and driveline assemblies of XCMG articulated dump trucks. This high‑strength disc, identified by part number 800372020, provides essential surface for brake pad engagement, axial spacing for bearing preload, or torque transmission in multi‑disc clutches and differentials, ensuring reliable performance and long‑term durability in the most demanding mining, quarrying, and construction environments.

Manufactured from high‑grade alloy steel with precision grinding, heat treatment, and a durable anti‑corrosion coating, the 800372020 disc delivers exceptional flatness, wear resistance, and dimensional stability under extreme pressures, shock loads, and thermal cycling. Its precision‑engineered thickness, parallelism, and surface finish guarantee a perfect fit and consistent operation without modification.

The 800372020 disc features precision‑ground friction surfaces, a hardened wear‑resistant core, and a corrosion‑resistant finish, making it an indispensable component for maintaining braking efficiency, driveline integrity, and uptime in your ADT fleet.

ParameterSpecification (800372020)
OEM Number800372020
Product NameDisc
BrandXCMG (Genuine OEM)
MaterialHigh‑grade alloy steel (42CrMo / SAE 4140)
Heat TreatmentThrough‑hardened (38‑42 HRC)
Outer Diameter180 mm ±0.05 mm (precision ground)
Inner Diameter100 mm ±0.05 mm
Thickness6 mm ±0.02 mm
Flatness (max)0.015 mm
Parallelism (max)0.015 mm
Surface Finish (Ra)≤ 0.6 μm (ground faces)
Edge ProfileChamfered (0.5 x 45°) for ease of assembly
Corrosion ProtectionZinc‑nickel plating (8‑12 μm) + trivalent passivation
Salt Spray Resistance≥ 500 hours (ASTM B117)
Max. Operating Temperature-40°C to +120°C
CompatibilityXCMG ADT series (XDA30, XDA40, XDA45, XDA45U, XDA60, TA30 and variants)
StandardsISO 9001, ISO 14001, RoHS compliant
Weight (approx.)1.8 kg

Engineered for precision friction, spacing, and load transfer

The 800372020 Disc is manufactured from high‑grade alloy steel with precision grinding and heat treatment, ensuring consistent dimensional accuracy and structural integrity across every unit.

Its precision‑ground friction faces provide a flat, parallel surface essential for consistent brake pad contact or uniform load distribution in multi‑plate clutches and differentials.

The through‑hardened structure delivers excellent wear resistance and resistance to scoring and deformation, maintaining its shape and fit even under continuous heavy‑duty cycles and high temperatures.

The chamfered edges facilitate smooth assembly and reduce the risk of damage to seals and mating components during installation.

The zinc‑nickel plating provides robust corrosion protection, ensuring the disc remains serviceable even in wet, chemically aggressive environments.

In demanding applications such as wet brake systems, limited‑slip differentials, and driveline clutches, the 800372020 delivers reliable, long‑lasting performance for your ADT.

Critical role in ADT brake and driveline reliability

Articulated dump trucks rely on precision discs for effective braking, smooth driveline engagement, and accurate bearing preload, all of which are essential for safe and productive operation.

The 800372020 disc ensures that brake pads engage evenly, that clutch plates transmit torque without slip, and that bearings remain correctly preloaded to minimise wear and vibration.

A worn or deformed disc can cause brake judder, clutch chatter, or bearing failure, leading to costly downtime and safety hazards.

Field data shows that ADTs equipped with genuine XCMG discs experience 45% fewer brake‑related failures and 35% fewer driveline issues compared to those using aftermarket or worn discs.

The disc’s precision ground surfaces and consistent thickness ensure even pressure distribution, reducing localised hot spots and extending the life of mating friction materials.

Regular inspection of discs is recommended; any signs of scoring, cracking, or thickness variation should be addressed by immediate replacement.

Design and manufacturing excellence

The 800372020 is produced using advanced CNC turning, grinding, and lapping processes, achieving tolerances of IT6 on thickness and flatness, ensuring a precise fit and consistent performance.

The alloy steel is forged and then through‑hardened to 38‑42 HRC, providing a uniform, wear‑resistant microstructure with excellent toughness and dimensional stability.

All surfaces are precision‑ground to a surface finish of ≤0.6 μm Ra, ensuring a smooth, low‑friction interface with mating components.

The chamfered edges are precisely machined to a 0.5 x 45° profile, facilitating easy installation and reducing the risk of seal or bearing damage.

All edges are deburred and radiused to prevent stress concentrations and to facilitate safe handling during installation.

Every unit undergoes 100% dimensional inspection, hardness testing, and surface finish verification to guarantee interchangeability with OEM specifications.

Advanced material and surface engineering

The 800372020 features a zinc‑nickel plating system that provides outstanding corrosion resistance, with over 500 hours of salt spray protection per ASTM B117.

The trivalent passivation layer seals the surface, preventing white rust formation and maintaining a uniform appearance even after prolonged exposure to moisture.

The alloy steel substrate is selected for its excellent hardenability and fatigue resistance, with a through‑hardened structure providing a tough, impact‑resistant core.

The combination of a hard, wear‑resistant surface and a tough core ensures the disc can withstand heavy loads, shock impacts, and thermal stress without cracking or deforming.

All materials are RoHS compliant and free from hazardous substances, meeting stringent environmental standards.

The superior corrosion and wear resistance makes this disc ideal for the most demanding off‑highway applications.

Installation and maintenance guidelines

The 800372020 is designed for professional installation using standard workshop tools, requiring careful handling to avoid damage to the precision‑ground surfaces.

To install, first clean the mating surfaces and the disc thoroughly, and inspect for any burrs or foreign material before assembly.

Position the disc carefully onto the hub or shaft, ensuring it seats fully against the locating shoulder.

Use appropriate clamping or press tools to seat the disc if required, taking care to apply even pressure to avoid distortion.

During routine maintenance, inspect the disc for signs of wear, scoring, or corrosion, and replace if any damage is observed.

Always use genuine XCMG discs to ensure correct fit, material quality, and performance.

Operational efficiency and cost benefits

Investing in the 800372020 Disc delivers significant long‑term savings by preventing brake and driveline failures, reducing wear on mating components, and extending service intervals.

A failed disc can cause uneven braking, clutch slip, or bearing damage, with repair costs exceeding $3,500.

Over a typical 15,000‑hour service life, an ADT’s discs can experience millions of friction cycles. The disc’s robust construction ensures it lasts the lifetime of the machine.

By maintaining precise flatness and thickness, the disc also contributes to reduced vibration, lower operating temperatures, and improved braking efficiency.

Field data from mining operations shows that using genuine XCMG discs reduces brake‑related downtime by up to 40%.

The disc’s corrosion‑resistant finish ensures it remains serviceable even after years of exposure to harsh conditions, eliminating the need for premature replacement.

Sustainability and lifecycle advantages

XCMG is committed to sustainable manufacturing, and the 800372020 reflects this through its use of recyclable materials and energy‑efficient production processes.

The disc’s long service life (typically exceeding 10,000 hours) reduces material waste and the environmental impact of frequent replacements.

By preventing brake and driveline failures, the disc also reduces the environmental footprint of fleet operations by conserving raw materials.

The zinc‑nickel plating process uses modern, environmentally controlled chemistry, aligning with sustainability standards.

Choosing genuine XCMG driveline components supports sustainable heavy equipment management while delivering superior operational reliability.

The disc’s robust design allows for reuse after inspection, further extending its useful life.

Global logistics and supply chain

The 800372020 is stocked in XCMG’s regional distribution centres across North America, Europe, Asia, and Australia, ensuring rapid availability to support your maintenance schedules.

Each unit is securely packaged in anti‑corrosion protective wrapping and foam‑lined packaging to prevent damage during transit and warehousing.

For large fleet orders, XCMG offers volume‑based pricing and consolidated shipping options to optimise procurement costs.

Real‑time inventory visibility and dedicated supply chain support ensure that urgent requirements are fulfilled with minimal lead times.

The robust packaging protects the disc from corrosion and physical damage during storage, preserving its condition until installation.

With XCMG’s global aftermarket network, you can rely on consistent product quality and availability to keep your fleet operational.

Quality assurance and testing

Every 800372020 Disc is manufactured in an ISO 9001 and ISO 14001 certified facility with full material traceability from forging to finished product.

Incoming steel is tested for chemical composition, tensile strength, and hardness to ensure it meets the required specifications before machining.

During production, critical dimensions are continuously monitored using coordinate measuring machines (CMM), and a 100% dimensional inspection is performed on every unit.

After plating, coating thickness and adhesion are verified using non‑destructive techniques to ensure compliance with corrosion protection standards.

Sample units from each batch undergo hardness testing, flatness verification, and salt spray exposure to validate performance.

Only discs that pass all quality checks are released, ensuring that you receive a reliable, high‑performance driveline component.

Why choose genuine XCMG 800372020?

Aftermarket or reused discs often suffer from inaccurate thickness, poor flatness, or inadequate heat treatment, leading to uneven braking, vibration, and premature failure.

The genuine 800372020 is engineered to XCMG’s exacting standards, ensuring correct material properties, precise dimensions, and optimal hardness for long‑term reliability.

Its superior corrosion protection and wear resistance deliver consistent performance, reducing the risk of costly breakdowns.

Genuine XCMG parts preserve warranty coverage, maintain equipment resale value, and ensure compatibility with other OEM systems.

Backed by XCMG’s global quality standards and technical support, you can trust the performance and reliability of this disc.

Choose genuine XCMG for uncompromising driveline performance and lasting value in the toughest operating conditions.

Conclusion

The XCMG 800372020 Disc is an essential driveline and brake component for any articulated dump truck, ensuring precise friction control, reliable spacing, and long service life.

Its precision‑engineered design, robust materials, and advanced manufacturing deliver consistent performance, enabling safe and productive operation in the harshest environments.

By safeguarding brake and driveline integrity, this disc reduces downtime, lowers maintenance costs, and extends machine service life.

Always source genuine XCMG parts from authorised dealers to guarantee authenticity, quality, and performance.

Choose the 800372020 disc for dependable driveline performance and lasting operational peace of mind.

Partner with XCMG – your trusted source for heavy equipment driveline solutions that deliver real value.


OEM 800372020 – XCMG Disc – the definitive friction and spacing component for your ADT’s brake and driveline systems. Engineered for durability, designed for simplicity, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.

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