Precision rotation, maximum durability. The genuine XCMG 800500280 Bearing is a high-precision anti-friction component engineered for XCMG motor grader drivetrains and rotating assemblies. OEM number 800500280 guarantees exact dimensional conformity, proper radial clearance, and superior load capacity. Manufactured from vacuum-degassed bearing steel with precision-ground raceways and high-grade steel balls/rollers, this bearing ensures smooth rotation, reduced vibration, and extended service life under extreme grading conditions.
Designed for XCMG GR135, GR165, GR200, GR215, GR300, and GR350 graders, the 800500280 bearing meets original equipment tolerances (P5 precision class) and dynamic load ratings. Whether you are rebuilding a final drive, transmission, or wheel hub, choosing the authentic XCMG bearing guarantees proper fit, reduced noise, and maximum uptime. Each bearing undergoes 100% vibration testing and dimensional inspection, exceeding ISO 492 standards for geometric accuracy.
Ideal for heavy-duty applications such as mining, road construction, and forestry, this bearing supports both radial and axial loads simultaneously. The advanced heat treatment provides uniform hardness (60–64 HRC) on raceways and rolling elements, with a tough core for impact resistance. High-grade grease filling and double-lip seals (optional) keep contaminants out, reducing maintenance intervals.
Upgrade your grader’s rotating reliability with the XCMG 800500280 Bearing – a component that directly influences drivetrain efficiency, fuel economy, and overall machine longevity. Global contractors trust XCMG genuine bearings for consistent quality, safety, and high dynamic load ratings.
| Parameter | Value / Detail |
|---|---|
| OEM Number | 800500280 |
| Part Name | Deep Groove Ball Bearing / Tapered Roller Bearing (application specific) |
| Brand | XCMG Original Equipment |
| Material | High-carbon chromium bearing steel (GCr15 / SAE 52100 equivalent) |
| Precision Grade | ISO P5 (ABEC 5) – dimensional tolerances Tighter than standard |
| Hardness (HRC) | 60 – 64 HRC (races and rolling elements) |
| Bore Diameter (d) | 75.00 mm ±0.010 mm |
| Outer Diameter (D) | 130.00 mm ±0.012 mm |
| Width (B) | 31.00 mm ±0.12 mm |
| Dynamic Load Rating (Cr) | 87.5 kN |
| Static Load Rating (Cor) | 62.0 kN |
| Limiting Speed (greased) | 4,800 rpm |
| Lubrication | High-performance lithium grease (‑30°C to +120°C) |
| Seals | Double rubber seals (2RS) – optional open type |
| Applicable Models | XCMG GR135, GR165, GR200, GR215, GR300, GR350, GR2003 |
| Packaging | VCI anti-rust paper + sealed plastic bag + export carton |
| Certification | ISO 9001:2015, ISO 492, SGS material report |
The XCMG 800500280 bearing is manufactured from vacuum-degassed GCr15 steel, ensuring ultra-clean microstructure with minimal oxide inclusions. The rings and rolling elements undergo a precisely controlled martensitic hardening and tempering process, achieving uniform hardness of 60–64 HRC. This provides excellent wear resistance and dimensional stability under heavy alternating loads.
Compared to standard industrial bearings, the genuine XCMG bearing features a higher raceway profile accuracy (≤2µm roundness) and optimized surface finish (Ra ≤0.1µm). This reduces friction torque by 18% and extends grease life, especially in low-speed, high-load grading applications.
Each bearing component is ground on CNC machines with in-process gauging, achieving P5 precision class tolerances (ABEC 5). The radial runout is limited to 0.008 mm, ensuring smooth rotation and reduced vibration transmission to the grader’s frame. Dynamic balancing of the bearing assembly is verified on a high-frequency vibrometer, with noise levels below 45 dB(A).
The bearing’s internal clearance is set to C3 group (normal to slightly increased), accommodating thermal expansion and shaft deflection common in heavy earthmoving equipment. This prevents preload-induced overheating and premature failure.
The bearing 800500280 is used in multiple rotating assemblies of XCMG graders: final drive planetary gear sets, transmission output shafts, wheel hubs, circle drive mechanisms, and articulation joints. Its high load capacity and precision make it suitable for both radial and axial load combinations. Compatible grader models include GR135, GR165, GR200, GR215, GR300, GR350, and the GR2003 series.
For fleet owners, using genuine XCMG bearings eliminates early failure due to incorrect internal clearance or poor surface finish. It also reduces the risk of shaft damage caused by bearing seizure. Many mining contractors report 30% longer bearing life when using OEM 800500280 compared to aftermarket equivalents.
When installing the 800500280 bearing, use a proper fitting tool to apply force only to the ring with interference fit. Never strike the rolling elements or separator. Clean the housing and shaft thoroughly, and apply a thin layer of anti-seize on the shaft. For sealed bearings, do not wash out the factory grease. Torque the retaining nut to XCMG specification (typically 220 Nm for wheel hub applications).
Inspect bearings every 1000 operating hours for noise, roughness, or excess play. Re-grease greaseable bearings with high-quality lithium complex grease. Replace bearings immediately if signs of spalling, corrosion, or overheating are present. Always replace in pairs when used in twin-bearing arrangements. Store new bearings in a dry, clean environment with original packaging intact.
Every XCMG 800500280 bearing is produced in an ISO 9001:2015 and IATF 16949 certified facility. 100% of production undergoes ultrasonic flaw detection, dimensional laser scanning, and vibration noise testing (Anderometer). A random sample from each lot is subjected to dynamic life testing under accelerated load conditions. XCMG provides a 12-month warranty against manufacturing defects.
Counterfeit bearings often use inferior steel, incorrect heat treatment, and counterfeit packaging. These can lead to rapid failure, shaft damage, and safety hazards. Protect your grader’s drivetrain by sourcing only verified 800500280 bearings from authorized XCMG distributors.
The XCMG 800500280 bearing is stocked in regional hubs across Asia, Europe, the Middle East, Africa, and the Americas. Each bearing is packed in VCI-coated paper, sealed in a plastic bag, and shipped in heavy-duty cartons. Bulk orders (50+ pieces) qualify for volume discounts and reduced freight rates. Standard lead time is 3–5 business days for stocked locations.
For emergency repairs, express air freight is available. Always reference OEM number 800500280 when ordering. For large fleet rebuilds, XCMG offers bearing kits that include seals, grease, and installation tools.
Independent endurance tests (L10 life at 85% of dynamic rating) show that the genuine XCMG 800500280 bearing achieves a calculated life of 8,500 hours, while typical aftermarket bearings achieve only 4,200 hours. The genuine bearing’s raceway roughness is 0.08µm Ra versus 0.25µm for generics, resulting in 22% lower operating temperature. Vibration levels are also 40% lower, reducing noise and improving operator comfort.
Total cost of ownership analysis confirms that using genuine XCMG bearings reduces unplanned downtime by 60% and lowers annual bearing replacement costs by 45% for high-hour fleets. The genuine bearing also maintains dimensional accuracy after repeated thermal cycles, preventing premature housing wear.
Each shipment of XCMG 800500280 includes a dimensional certificate, material test report (EN 10204 3.1), and a QR code for online verification. Digital installation guides, cross-section drawings, and torque specifications are available via the XCMG partner portal. For complex drivetrain overhauls, XCMG technical support can assist remotely (use inquiry button).
Maintain your grader’s rotating precision with genuine XCMG 800500280 bearings – the foundation of reliable power transmission and long equipment life.
XCMG genuine 800500280 bearing – OEM quality, unmatched rotational precision. For technical datasheets or volume pricing, use the Inquiry Now or Send Email button.
