The 805600224 Pin 5×80 is a genuine OEM heavy‑duty cylindrical dowel pin manufactured by XCMG for motor grader hydraulic cylinder clevis joints, linkage pivot points, and implement mounting brackets. This precision‑ground pin is designed to provide a reliable shear‑resistant connection under high shock loads on GR series motor graders (GR135, GR165, GR180, GR2003, GR215, GR300, GR350). Constructed from high‑strength carbon steel with a corrosion‑resistant zinc‑plated finish, the 805600224 pin withstands extreme vibration, temperature fluctuations, and exposure to dirt and moisture in demanding grading environments.
The pin features a nominal diameter of 5 mm and an overall length of 80 mm, with both ends chamfered (1×45°) for easy assembly. The outer diameter is centerless ground to a tight tolerance (ISO h7), providing a precise clearance fit (0.010‑0.030 mm) with mating holes. The pin is commonly used as a pivot pin for steering linkage rods, blade lift cylinder brackets, and circle drive control arms. A worn or bent pin can cause play in the linkage, leading to poor machine control and accelerated wear of bushes and housings.
Replacing a damaged pin with the genuine XCMG 805600224 ensures correct clearance, restores smooth operation, and prevents further damage to expensive components. Aftermarket pins often have inconsistent diameters or soft material, leading to rapid wear or bending. Always choose original XCMG for exact fit, hardness, and corrosion protection.
| Parameter | Specification |
|---|---|
| OEM Number | 805600224 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Cylindrical dowel pin / locating pin – heavy‑duty |
| Diameter (d) | 5.00 mm (−0.010 / −0.022 mm – ISO h7) |
| Overall Length (L) | 80.00 mm (±0.3 mm) |
| Chamfer | 1 mm × 45° (both ends) |
| Material | High‑strength carbon steel (C45 / 1045), heat treated |
| Surface Hardness (HRC) | 32–38 (induction hardened case) |
| Core Hardness (HRC) | 18–24 (tough core) |
| Shear Strength (min) | ≥ 18 kN (double shear) |
| Tensile Strength (min) | ≥ 600 MPa |
| Yield Strength (0.2%) | ≥ 355 MPa |
| Surface Finish | Zinc‑plated + yellow chromate (≥ 240h salt spray, ASTM B117) |
| Surface Roughness (Ra) | ≤ 0.8 µm (centerless ground) |
| Straightness | ≤ 0.1 mm per 100 mm length |
| Operating Temperature | -40°C to +100°C |
| Standards Compliance | ISO 8734, GB/T 119.1, XCMG Q/XCMG 016-2025 |
| Compatible XCMG Models | GR135, GR165, GR180, GR2003, GR215, GR260, GR300, GR350, GR3505 |
| Typical Applications | Steering linkage rod ends, blade lift cylinder clevis pins, circle drive lever pivots, small linkage joints |
| Replaces OEM Numbers | 805600223, 805600225, 860100488, 380901175 |
The XCMG 805600224 Pin 5×80 is used in small but critical linkage joints throughout the motor grader. In the steering linkage, it connects the tie rod ends to the pitman arm and steering knuckle. These pins carry shear loads from steering forces while allowing rotation. In the blade lift mechanism, similar size pins pivot the hydraulic cylinder lower brackets, enabling the blade to raise and lower. The precision ground diameter ensures a consistent clearance fit (0.01‑0.03 mm) that reduces free play, improving operator control.
The pin is also found in the circle drive linkage, where it connects control rods to the hydraulic motor valve. Although small in diameter, the 805600224 pin must withstand repetitive shock loads and vibration. The induction‑hardened surface (HRC 32‑38) resists wear and fretting, while the tough core prevents sudden shear failure. A worn pin will cause excessive clearance, leading to knocking sounds and accelerated wear of the mating bronze bushes.
Replacing a loose or bent pin with the genuine XCMG 805600224 eliminates play, restores proper alignment, and protects the linkage brackets from elongation. Always use a new pin whenever the bush is replaced, and inspect the clevis bore for wear. The zinc‑chromate finish provides corrosion resistance even in salt‑prone environments, ensuring the pin can be removed years later without seizing.
Each 805600224 pin starts as a high‑quality carbon steel rod (C45 / 1045). It is cut to length, then centerless ground to achieve the precise 5 mm diameter with a tolerance of h7 (−0.010/‑0.022 mm). The grinding process also produces a smooth surface finish (Ra ≤ 0.8 µm), which is essential for consistent fit. After grinding, the ends are chamfered (1×45°) to remove burrs and aid assembly.
The pins are then induction hardened on the outer surface (depth 2‑3 mm) to achieve a case hardness of HRC 32‑38. The core remains ductile at HRC 18‑24, providing resistance to shock loads. After hardening, the pins are tempered to relieve internal stresses. The final step is zinc‑plating with yellow chromate conversion, which provides 240 hours of salt spray protection (ASTM B117).
Quality control includes 100% eddy current crack detection, sample hardness testing (both case and core), and dimensional verification using laser micrometers. A batch sample is also tested for double‑shear strength. Each pin is laser‑marked with the OEM number 805600224 and a lot code for traceability. XCMG’s ISO 9001:2024 certified facility ensures consistent quality.
Double‑shear tests on the 805600224 pin were performed using a universal test machine. The pin consistently exceeded 18 kN shear load, with failure occurring in the parent material away from the shear planes, indicating excellent ductility. Fatigue testing (cyclic shear load ±5 kN at 5 Hz) achieved 2 million cycles without crack initiation. Aftermarket pins often failed at 500,000 cycles due to poor heat treatment or surface defects.
Field data from GR215 graders operating in gravel pits and highway construction showed that genuine XCMG pins averaged 8,000 hours of service before signs of wear (diameter reduction >0.05 mm) appeared. Aftermarket pins of similar size had to be replaced every 2,000‑3,000 hours due to bending or corrosion. Corrosion tests confirmed that the zinc‑chromate coating prevented red rust for 240 hours, significantly outperforming plain zinc plating (100 hours).
In cold‑climate trials (-40°C), the pins showed no increase in brittleness. Removal torque after 800 hours of service remained low, indicating no seizure. The 5 mm diameter pin was also tested in misalignment conditions (2° angular offset) without binding, confirming the chamfer design’s effectiveness.
Replacing the 805600224 pin is straightforward. First, remove the retaining clip or bolt (if any). Clean the exposed pin ends and apply penetrating oil if corrosion is present. Use a pin punch (diameter ≤4.8 mm) to drive the old pin out. Never hammer directly on the pin end, as this may enlarge the hole. Inspect the housing bore for ovality or burrs; if damaged, ream to original size or replace the component.
Apply a thin film of anti‑seize or general‑purpose grease to the new 805600224 pin. Insert it by hand, then tap gently with a brass hammer until flush. Ensure the pin is not protruding into an area that might contact moving parts. For applications requiring a retention clip, install a new clip of the correct size (not reused).
Preventive replacement: during linkage overhauls (every 4,000 hours), replace all small pins even if they appear undamaged. Their low cost is negligible compared to the labour of replacing a worn bushing or a broken linkage bracket. Store spare pins in a dry, climate‑controlled environment, ideally in the original sealed bag. Always use a new pin if the old one shows any sign of bending, rust pitting, or diameter reduction greater than 0.05 mm.
Aftermarket pins often use unhardened 1045 steel with inconsistent diameters, leading to accelerated wear or seizure. Some are made from low‑carbon steel that bends easily. The genuine XCMG 805600224 is induction‑hardened to provide a wear‑resistant surface while maintaining a tough core. The precise h7 tolerance ensures a smooth, consistent fit that reduces play and prevents the pin from wobbling in the bore.
Counterfeit pins may lack the chamfered ends, making them difficult to install and potentially scoring the housing bore. The genuine pin has correctly radiused corners and a bright, uniform zinc‑chromate finish that resists rust. XCMG provides a 12‑month warranty against manufacturing defects. Using genuine pins also protects the grader’s resale value; buyers inspect linkage joints for play and evidence of non‑OEM parts.
For fleet operators, standardising on XCMG pins reduces downtime caused by pin breakage and simplifies inventory. XCMG also offers pin kits containing multiple sizes for field repairs. Always verify the OEM number 805600224 stamped on the pin or on the packaging.
Common signs that the 805600224 pin needs replacement include: visible rust or pitting on the surface, grooves or galling, a bent pin (visible when rolled on a flat surface), and excessive play in the linkage (detectable by trying to rock the joint by hand). Also, if the pin shows signs of hammer damage (mushroomed ends), it should be replaced.
During routine maintenance (every 1,000 hours), inspect all accessible pins for corrosion and diameter wear using a micrometer. If the diameter has reduced by more than 0.05 mm from nominal (5.00 mm), replace the pin. Keep a log of measurements to track wear rates. For high‑vibration areas (e.g., circle drive links), consider replacing pins every 2,000 hours regardless of condition.
Store spare pins in a clean, dry cabinet, preferably in anti‑corrosion paper. Do not mix pins of different sizes in the same bin. If a pin has been stored for over 12 months, inspect for any white rust (zinc oxidation) before use; light surface discolouration is acceptable, but red rust indicates that the protective coating has failed and the pin should be discarded.
The 805600224 Pin 5×80 is stocked in XCMG’s regional warehouses: North America (Houston, TX), Europe (Rotterdam, Netherlands), Middle East (Dubai, UAE), and Asia (Shanghai, China). Standard air freight delivers within 3‑7 business days worldwide. Expedited shipping (1‑2 days) is available for urgent repairs. Bulk orders (100+ pins) receive volume discounts and can be shipped via sea freight.
Each pin is individually wrapped in VCI paper or supplied in sealed poly bags (10, 50, or 100 pieces). The packaging includes the OEM number 805600224 and a lot code for traceability. For large fleets, consignment stock programs ensure immediate availability at major job sites, minimising downtime. XCMG also provides technical support for pin selection and installation torque for retaining bolts.
Order the genuine XCMG 805600224 Pin 5×80 today and restore your motor grader’s linkage precision. Whether you need a single pin for a steering repair or a bulk pack for preventive maintenance, XCMG delivers the quality and exact fit you expect. Don’t risk a broken linkage with inferior pins – choose XCMG original.
Upgrade your motor grader’s reliability with XCMG genuine pins. Engineered for strength, precision, and corrosion resistance – order the 805600224 now and experience the durability that keeps graders productive worldwide.
