The genuine XCMG 860142841 Ball Bearing (type 6206 Rs/J) is a precision deep‑groove ball bearing manufactured for XCMG GR series motor graders. This OEM bearing is used in rotating applications such as engine cooling fan hubs, alternator pulley supports, water pump shafts, and hydraulic pump pilot mounts. Produced from vacuum‑degassed chrome steel (SAE 52100) with high‑precision grade ABEC‑1 tolerance, the 860142841 bearing delivers low friction, high radial load capacity, and quiet operation. The bearing features a single shielded side (RS) with a J‑type steel cage, providing excellent contaminant exclusion while retaining grease lubrication. This bearing is dimensionally interchangeable with standard 6206‑2RS/J and is designed for long service life in the demanding thermal and vibration environment of motor graders.
The 860142841 bearing dimensions: 30 mm bore, 62 mm outer diameter, and 16 mm width. The RS rubber seal on one side (and open on the other) allows grease release from the housing while preventing dirt ingress. The bearing is pre‑lubricated with high‑temperature lithium grease, operational from -40°C to +120°C. Applications on GR135, GR165, GR180, GR215, GR260, GR300, GR350, and GR2003 graders include the fan drive idler pulley, tensioner pulley, and various auxiliary shaft supports.
A worn or seized bearing produces noise, vibration, and eventually catastrophic failure of the rotating component. Replacing a failed bearing with genuine XCMG 860142841 restores original radial clearance and reduces friction, extending the life of fan drives, alternators, and water pumps. Keep this common bearing in your parts inventory for rapid repair of cooling system and accessory drive issues.
| Parameter | Specification |
|---|---|
| OEM Number | 860142841 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Deep‑Groove Ball Bearing – Single RS Seal + J Cage |
| Bore Diameter (d) | 30.00 mm (tolerance P0/ABEC‑1) |
| Outer Diameter (D) | 62.00 mm (tolerance P0) |
| Width (B) | 16.00 mm (±0.12 mm) |
| Dynamic Load Rating (C) | 20.3 kN |
| Static Load Rating (C0) | 11.2 kN |
| Limiting Speed (grease) | 8,500 rpm |
| Material – Rings & Balls | Vacuum degassed SAE 52100 chrome steel (GCR15) |
| Hardness | 60–64 HRC |
| Cage Type | J‑type pressed steel (riveted) |
| Seal Type | One side: RS (nitrile rubber contact seal); other side open |
| Internal Clearance | C3 (ISO 5753) – standard for motor grader applications |
| Lubrication | Pre‑filled with lithium EP2 grease (‑40°C to +120°C) |
| Temperature Range | -40°C to +120°C (‑40°F to +248°F) continuous |
| Standards Compliance | ISO 15, DIN 625, ABMA Std 9, XCMG Q/XCMG 1104-2023 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350, GR2003 |
| Superseded Part Numbers | 860141001, 860142200, 860142678, 860142800 |
The 860142841 ball bearing supports the engine cooling fan hub on many XCMG GR graders. The fan rotates at engine speed and is exposed to high temperatures from the radiator and engine compartment. A failing bearing causes fan wobble, noise, and eventually seizure, leading to engine overheating and downtime. Genuine 6206 RS/J bearings provide the necessary radial clearance for thermal expansion while maintaining quiet operation.
On alternator mounts, this bearing is used in the overrunning alternator pulley (OAP) or as a support for the drive end bracket. Alternator bearing failure often produces a squealing noise and can cause belt misalignment and charging loss. The RS shield on one side protects the internal raceways from belt dust while allowing purge of excess grease from the open side.
Hydraulic pump pilot bearings also use the 860142841 bearing. The pump drive shaft rides on this bearing to maintain concentricity with the engine‑mounted coupler. Any radial play in the bearing will lead to coupling misalignment, accelerated shaft seal wear, and eventual pump failure. Replacing a worn bearing with genuine XCMG restores alignment and prolongs pump life.
XCMG specifies vacuum‑degassed SAE 52100 chrome steel for the 860142841 bearing to eliminate non‑metallic inclusions that lead to premature spalling. The rings are formed from thick‑walled tubing, then through‑hardened and tempered to a hardness of 60–64 HRC with a uniform martensitic structure. This provides high rolling contact fatigue strength and dimensional stability.
The balls are grade 10 precision (sphericity within 0.5 microns) and are lapped to a mirror finish. The raceways are ground and superfinished to Ra 0.05 μm, minimizing friction and allowing the bearing to achieve its rated speed of 8,500 rpm with low noise. The J‑type steel cage is riveted and has large windows for grease flow, reducing operating temperature by 5‑8°C compared to polyamide cages in high‑speed applications.
The RS seal is made of nitrile rubber bonded to a steel insert, providing a labyrinth effect against dust. The seal lip contacts the inner ring with a light contact force, offering protection class IP55 against dust jets. The bearing is pre‑lubricated with a high‑quality lithium EP2 grease that has excellent shear stability and oxidation resistance, rated for 20,000 hours of operation under normal conditions.
Before installing a new 860142841 bearing, inspect the housing bore and shaft for burrs or scratches. The shaft should have a surface finish of Ra 0.4–0.8 μm and a hardness of at least 55 HRC. Clean all components with lint‑free cloth and solvent. Do not remove the bearing from its anti‑corrosion packaging until immediately before installation.
When installing, apply force only to the ring that is being press‑fitted. For a shaft fit, use a sleeve on the inner ring; for a housing fit, use a sleeve on the outer ring. Never hammer directly on the bearing. Heat the bearing in an induction heater to 80‑100°C for easier installation onto steel shafts. After cooling, check for smooth rotation – there should be no grinding, notching, or excessive resistance.
Apply a thin film of clean grease to the housing bore before inserting the bearing. If the bearing is installed in a fan hub, ensure the RS seal faces outward (away from the engine) to prevent dirt ingress. Tighten the retaining bolt or snap ring to the torque specified in the service manual. After assembly, rotate the component by hand to verify free movement. Keep spare 860142841 bearings in your service truck for fan, alternator, or pump repair.
Aftermarket 6206 bearings often use lower‑grade steel with higher inclusion content, leading to early fatigue failure (spalling) within 1,000 hours. Many have inaccurate raceway geometry, resulting in higher running noise and increased friction that robs engine power and generates waste heat. Genuine XCMG 860142841 uses premium SAE 52100 steel and precision grinding for quiet, efficient operation.
Counterfeit bearings may have inadequate grease fill or use low‑temperature grease that flows out when hot, causing dry running and seizure. Some have poorly bonded RS seals that allow dirt to enter, destroying the bearing quickly. Genuine XCMG bearings are pre‑lubricated with high‑temperature grease and the RS seal is compression‑tested to ensure dust resistance. Each genuine bearing is 100% noise‑tested on an Anderometer.
XCMG provides a 12‑month warranty against manufacturing defects. The packaging includes a laser‑etched XCMG logo and lot number traceability. The small additional cost of an OEM bearing is far outweighed by the avoided downtime and secondary damage caused by a failed aftermarket bearing (such as seized fan hub or alternator bracket). Always insist on genuine 860142841 for critical rotating assemblies.
Audible indicators: growling, rumbling, or squealing noise from the fan hub, alternator, or pump area that increases with engine RPM. Vibration felt when touching the component housing. Visual signs: grease leakage past the seal (discolored brown or black), excessive radial play felt when rocking the pulley by hand (more than 0.5 mm), and belt misalignment due to wobbling fan.
Preventive replacement is recommended every 3,000 operating hours for fan hub bearings and every 5,000 hours for alternator and pump pilot bearings. However, if the grader operates in dusty environments (desert, gravel pits), reduce intervals by 30%. During each 500‑hour service, listen for bearing noise using a mechanic’s stethoscope and check component temperature with an infrared gun – any hotspot above ambient+25°C indicates internal friction.
Keep a stock of 860142841 bearings in your fleet workshop. When replacing a belt, tensioner, or fan, inspect the bearing for rough rotation. Do not attempt to re‑grease sealed bearings – once the seal is damaged, replacement is required. A proactive bearing replacement strategy prevents catastrophic component failure and keeps your grader operational.
The XCMG 860142841 Ball Bearing is stocked in regional warehouses: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China). Standard air freight delivers within 2–5 business days worldwide. Expedited courier (DHL/FedEx) provides 1–2 day shipping for emergency repairs. Bulk orders of 50+ bearings receive volume discounts and can be shipped by sea freight.
Each bearing is packed in an individual VCI anti‑corrosion bag and placed in a foam‑lined carton. For large fleets and mining operations, consignment stock programs ensure immediate availability. Our logistics team provides real‑time tracking and customs clearance support for international shipments. Technical data sheets and installation videos are available upon request.
Don’t let a noisy bearing lead to a seized fan, alternator, or pump. Order the genuine XCMG 860142841 Ball Bearing 6206 RS/J today and restore smooth, quiet operation to your motor grader’s auxiliary drives. This common size is essential for preventive maintenance – stock up to avoid unnecessary downtime.
Upgrade your grader’s rotating equipment reliability with XCMG genuine ball bearings. Engineered for precision, low noise, and long service life. Use the buttons above to request a quote or email our parts specialists. Keep your XCMG grader running cool and quiet – choose 860142841 OEM bearing.
