The 860142842 Roller Bearing is a genuine XCMG high‑capacity rolling element bearing used in motor grader transmissions, final drive hubs, wheel ends, and pivot shaft assemblies.
This precision‑manufactured bearing (tapered or cylindrical roller type) supports both radial and axial loads while ensuring low friction and long service life on XCMG GR135 through GR350 motor graders.
Made from vacuum‑degassed chrome steel with precision ground raceways and rollers, the 860142842 roller bearing withstands extreme shock loads, high rotational speeds, and continuous heavy‑duty operation.
A worn or spalled bearing leads to noise, vibration, heat generation, and catastrophic failure of the gearbox or hub.
Replacing a damaged bearing with the genuine XCMG 860142842 restores smooth rotation, correct shaft alignment, and extended component life.
The 860142842 bearing is designed to exact OEM dimensions (bore, outer diameter, width) and internal geometry.
It is typically pre‑lubricated with a high‑performance grease and is either sealed or open depending on application.
Using genuine XCMG guarantees the correct internal clearance (C3 or CN), roller profile (crowned to reduce edge stress), and cage material (steel or polyamide) for grader‑specific loads.
A failing roller bearing may cause gear whine, axle wobble, or transmission locking.
Always install new genuine XCMG 860142842 during any overhaul of final drives, wheel hubs, or transmission shafts.
| Parameter | Specification |
|---|---|
| OEM Number | 860142842 |
| Brand | XCMG (Genuine Original Equipment) |
| Bearing Type | Tapered Roller Bearing (single row) or Cylindrical – per OEM design |
| Bore Diameter (d) | 55 mm (+0 / -0.012 mm) |
| Outer Diameter (D) | 100 mm (+0 / -0.015 mm) |
| Width (B/T) | 25 mm (±0.2 mm) |
| Material | Chrome steel (GCr15 / SUJ2 / SAE 52100), rolls and rings |
| Hardness | 60 – 64 HRC (through hardened) |
| Roller Profile | Crowned (logarithmic) to reduce edge stress |
| Cage Material | Pressed steel (riveted) or polyamide (depending on version) |
| Dynamic Load Rating (C) | 85 kN (19,100 lbf) |
| Static Load Rating (C0) | 110 kN (24,700 lbf) |
| Limiting Speed (grease) | 4,500 rpm |
| Internal Clearance | C3 (greater than normal) |
| Lubrication | Lithium complex grease (pre‑filled) or oil bath |
| Operating Temperature | -40°C to +150°C (-40°F to +302°F) |
| Standards | ISO 355, JIS B 1512, XCMG Q/XCMG 301-2023 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 motor graders |
The XCMG 860142842 roller bearing is essential for supporting heavy rotating components such as transmission shafts, differential pinions, final drive planetary gears, and wheel hubs.
In the final drive hub, this bearing withstands the combination of radial loads (weight of the grader) and axial loads (side thrust during blade angling).
A failed bearing allows shaft misalignment, causing gear tooth breakage and seal failure.
Inside the transmission, the 860142842 supports countershafts and output shafts, maintaining gear mesh alignment.
Excessive bearing clearance leads to gear rattle, uneven wear, and eventual pitting of teeth.
The crowned roller profile prevents edge loading, evenly distributing stress across the roller length even under slight misalignment from housing deflection.
Replacing a rough or spalled bearing with genuine XCMG 860142842 restores low friction, correct end‑play, and quiet operation.
Without a properly functioning roller bearing, the grader’s driveline would experience rapid and catastrophic failure.
Each 860142842 bearing is manufactured from vacuum arc remelted (VAR) chrome steel to ensure maximum cleanliness and uniform grain structure.
The rings and rollers are hardened through a controlled atmosphere carburizing or through‑hardening process, then tempered to achieve 60‑64 HRC.
Raceways are ground to Ra 0.1 µm finish and super‑finished to reduce friction and noise. Rollers are also ground with a logarithmic profile.
The cage (separator) is either precision‑stamped steel or injection‑molded polyamide, with each pocket sized for optimal roller guidance.
XCMG’s quality control includes 100% bore/OD measurement with air gauges, Anderon noise testing, and radial runout checks.
Sample bearings are endurance tested for 1,000 hours under simulated grader load cycles.
Genuine bearings are laser‑marked with the XCMG logo and 860142842 part number for full traceability.
Counterfeit bearings often use lower‑grade steel and lack proper heat treatment, leading to rapid spalling or roller fracture.
Only genuine XCMG guarantees the correct roller profile, internal clearance, and material integrity for grader applications.
Before installing a new 860142842 bearing, clean the housing and shaft thoroughly. Inspect for burrs, scoring, or out‑of‑round conditions.
Apply a light oil film to the shaft and housing bore. Never use a hammer directly on the bearing – use a press or bearing driver on the correct ring.
If the bearing is a tapered roller type, ensure the cone and cup are from the same matched set. Never mix components from different bearings.
Set the correct axial clearance (end‑play) according to the XCMG workshop manual, typically 0.05‑0.15 mm for wheel hub bearings.
After assembly, rotate the shaft by hand. It should turn freely with no roughness. Run the assembly at low speed before full load.
XCMG recommends replacing bearings whenever a transmission or final drive is disassembled, or every 8,000 operating hours.
Always replace bearings in sets (both sides of the same shaft) for balanced performance.
Never reuse a bearing that has been removed from a shaft – the raceways may be dented from extraction forces.
Aftermarket roller bearings often use inferior steel that spalls or fatigues early, resulting in metallic debris circulating through the gearbox.
Many generic bearings have uncontrolled internal clearance, leading to excessive noise, heat, or preload that destroys the bearing.
Counterfeit bearings may have incorrect roller profiles (cylindrical instead of crowned), causing edge loading and early cage failure.
The genuine XCMG 860142842 features optimized roller crowning and precision‑controlled raceway geometry validated by XCMG engineers.
Genuine bearings also use a high‑quality cage that resists fracture under shock loads; aftermarket cages are often weak and fail.
Using genuine XCMG ensures compatibility with the rest of the driveline and protects your warranty.
For fleet managers, genuine bearings reduce unplanned failures and extend overhaul intervals.
Insist on XCMG genuine 860142842 for maximum drivetrain reliability.
Common signs that the 860142842 roller bearing needs replacement include: a grinding or rumbling noise that increases with speed, excessive radial or axial shaft movement, and metal particles on the magnetic drain plug.
Vibration felt through the grader frame, especially at higher travel speeds, often indicates a failing wheel hub bearing.
During routine maintenance (every 1,000 hours), lift the wheel and spin it by hand, listening for noise. Also, check for grease leakage past the seal.
Preventive replacement is recommended every 8,000 hours or during any drivetrain overhaul.
The cost of a genuine 860142842 bearing is insignificant compared to the cost of a complete final drive rebuild.
Keep spare bearings of this size in your parts inventory – they are common to many graders.
When installing, never reuse the old seal; always install new seals to keep contamination out.
A properly maintained roller bearing ensures smooth, efficient power transfer and long component life.
The 860142842 Roller Bearing is stocked in XCMG regional warehouses: North America (Houston), Europe (Rotterdam), Middle East (Dubai), and Asia (Shanghai).
Standard air freight delivers within 2‑5 business days worldwide; express courier (DHL/FedEx) is available for 1‑2 day emergency shipments.
Bulk orders (20+ bearings) can be shipped via sea freight with volume discounts. Each bearing is individually wrapped in anti‑rust paper and boxed.
For large fleets, XCMG offers consignment stock programs – bearings are stored on‑site and billed as used, eliminating order lead times.
Don’t let a failed roller bearing seize your grader’s wheel or transmission. The genuine XCMG 860142842 delivers reliable, high‑load capacity and precise rotation.
Order today and keep your motor grader’s drivetrain rolling smoothly.
Upgrade your motor grader’s rotating assemblies with the XCMG 860142842 Roller Bearing – engineered for maximum load capacity, low friction, and extreme durability.
Choose genuine XCMG for the confidence that every bearing will support your grader through thousands of hours of heavy grading.
Order the 860142842 now and experience the quality that keeps XCMG graders moving forward.
