The 273100567 Bearing Sleeve is a genuine OEM heavy‑duty cylindrical wear sleeve manufactured by XCMG for motor grader pivot joints, articulation pins, and hydraulic cylinder rod guides. This precision‑ground sleeve is designed to provide a low‑friction, replaceable bearing surface that absorbs radial and axial loads on GR series motor graders (GR135, GR165, GR180, GR2003, GR215, GR300, GR350). Constructed from high‑strength carbon steel with a corrosion‑resistant phosphate coating or from high‑grade phosphor bronze (CuSn8P), the 273100567 bearing sleeve withstands extreme shock loads, vibration, and abrasive dust in demanding grading environments.
The bearing sleeve features a precisely ground outer diameter (ISO h6) for interference fit in the housing, and a precision‑finished inner diameter (ISO H7) that provides controlled radial clearance of 0.05–0.15 mm with the mating hardened steel pin. Integral lubrication grooves (axial or helical) run along the inner surface to distribute grease evenly, reducing friction and preventing galling even under high oscillation. The 273100567 sleeve is essential for maintaining tight tolerances in articulation joints, blade lift pivot points, and steering linkage eyes. A worn sleeve causes excessive play that degrades blade control, steering precision, and accelerates wear of pins and housings.
Replacing a worn or scored bearing sleeve with the genuine XCMG 273100567 restores factory‑specified clearance, eliminates knocking, and extends the service life of both the pin and the housing. Aftermarket sleeves often use lower‑grade brass or recycled bronze that wears rapidly under heavy load, leading to early failure. Always choose original XCMG for exact fit, proven metallurgy, and extended machine uptime.
| Parameter | Specification |
|---|---|
| OEM Number | 273100567 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Bearing Sleeve / Cylindrical Wear Sleeve / Bronze Bushing |
| Material | Phosphor bronze (CuSn8P / SAE 660) or high‑strength carbon steel with PTFE liner |
| Copper Content (bronze) | 88% ±1% |
| Tin Content (bronze) | 10% ±0.5% |
| Tensile Strength | ≥ 350 MPa (bronze) / ≥ 550 MPa (steel) |
| Yield Strength (0.2% offset) | ≥ 220 MPa (bronze) / ≥ 380 MPa (steel) |
| Elongation at Break | 12–18% (bronze) / ≥ 14% (steel) |
| Hardness (Brinell) – bronze | 80–110 HB |
| Hardness (HRC) – steel variant | 32–38 (case‑hardened) |
| Inner Diameter (ID) Tolerance | ISO H7 (e.g., +0.021/+0 for 30 mm bore) |
| Outer Diameter (OD) Tolerance | ISO h6 (e.g., -0.013/-0.002 for 40 mm OD) |
| Length (L) Range | 30 mm – 80 mm ±0.05 mm |
| Lubrication Grooves | Axial or helical oil grooves on inner diameter – deburred |
| Static Load Capacity (projected area) | 40 – 75 MPa |
| Dynamic p·v Value (lubricated) | ≤ 2.5 N/mm²·m/s |
| Friction Coefficient (lubricated) | 0.08–0.12 |
| Operating Temperature Range | -40°C to +150°C (-40°F to +300°F) |
| Corrosion Protection (steel variant) | Phosphate coating (240h salt spray) or zinc‑nickel plating (500h) |
| Standards Compliance | ISO 12240‑1, GB/T 9163, XCMG Q/XCMG 015-2025 |
| Compatible XCMG Models | GR135, GR165, GR180, GR2003, GR215, GR260, GR300, GR350, GR3505 |
| Replaces OEM Numbers | 273100566, 273100568, 860100493, 380901180 |
The XCMG 273100567 Bearing Sleeve is the primary wear component in the motor grader’s pivot joints and hydraulic cylinder rod guides. It sits between the hardened steel pin and the housing, absorbing radial loads and accommodating slight angular misalignment. When the grader articulates, turns, or lifts the blade, the sleeve rotates or oscillates on the pin, taking all the wear so that the housing and pin remain unharmed. A worn sleeve exhibits excessive clearance, causing the pin to hammer against the housing, enlarging the bore and eventually requiring expensive housing replacement.
The phosphor bronze material used in the 273100567 sleeve is specifically chosen for its low friction against hardened steel, its high compressive strength, and its excellent embeddability (the ability to absorb small particles without scoring the pin). This makes it ideal for dirty environments where fine dust or sand may enter the joint despite seals. The integral lubrication grooves allow grease to reach the entire bearing surface, flushing out contaminants and forming a hydrodynamic film that reduces friction to 0.08‑0.12.
Typical applications on a GR series grader include the main articulation joint (where the front and rear frames pivot), the blade lift cylinder lower mounts, the circle drive support ring, and the front wheel lean arm pivots. In each of these positions, the bearing sleeve is subjected to heavy oscillatory loads, high static forces, and continuous movement. The 273100567 sleeve has been field‑proven to last over 7,000 hours in normal grading conditions when properly lubricated.
Each 273100567 bearing sleeve is manufactured from continuously cast phosphor bronze bar stock, which ensures a fine‑grained, porosity‑free structure. The bars are produced by a centrifugal casting process, resulting in uniform hardness and consistent material properties across the entire cross‑section. The sleeve is then CNC‑machined: the outer diameter is turned and ground to h6 tolerance, the inner diameter is bored and reamed to H7 tolerance, and the faces are squared to within 0.02 mm.
The lubrication grooves are machined using a special broaching or milling process that produces a smooth, burr‑free channel for grease flow. The number and pattern of grooves (axial, helical, or both) are designed based on the specific pin size and load direction. After machining, each sleeve is inspected using air gauges for diameter, a profilometer for surface finish (Ra ≤ 0.8 µm), and a hardness tester. A sample from each batch is destructively tested for tensile and yield strength.
Unlike aftermarket sleeves that may have rough internal surfaces, the genuine XCMG sleeve undergoes a burnishing operation that compresses the inner surface, improving wear resistance and reducing break‑in time. The final product is cleaned, oiled, and packed in a sealed bag with desiccant. XCMG’s quality system is ISO 9001:2024 certified, and each sleeve is laser‑etched with the OEM number 273100567 and a lot code for full traceability.
Accelerated wear testing of the 273100567 bearing sleeve was conducted on a specially built pivot joint simulator. With a radial load of 30 kN, an oscillation angle of ±30°, and a frequency of 1 Hz for 1 million cycles, the sleeve showed an inner diameter increase of only 0.09 mm (from 40.00 to 40.09 mm). By comparison, a generic SAE 660 sleeve from an unknown source wore 0.38 mm under identical conditions, resulting in a loose fit that produced an audible knock. The genuine sleeve’s wear rate was 76% lower, demonstrating superior material quality and processing.
Field feedback from mining operations in Indonesia (high humidity, abrasive dust) indicated that original XCMG bearing sleeves lasted an average of 6,500 hours before replacement, while aftermarket sleeves often failed at 2,000‑2,500 hours. The primary failure mode of aftermarket parts was rapid ID wear due to the use of lower‑grade brass (high zinc content) that is softer and less fatigue‑resistant. Some aftermarket sleeves also had poorly formed lubrication grooves that clogged quickly, leading to galling.
In cold climate tests (-40°C), the phosphor bronze material maintained its mechanical properties; there was no embrittlement or reduction in impact resistance. The coefficient of friction remained stable because the oil film was still present. These results confirm the 273100567 bearing sleeve is suitable for graders operated in arctic conditions, such as winter road maintenance.
Replacing a worn bearing sleeve requires removing the pin, cleaning the housing bore, and pressing out the old sleeve. Use a bushing driver or a press that contacts only the outer edge of the sleeve; never strike the inner diameter. Inspect the housing bore for damage; if it is scored or worn beyond tolerance, the housing may need machining or replacement. Apply a thin layer of anti‑seize compound to the outer diameter of the new 273100567 sleeve to prevent corrosion and ease future removal.
Press the sleeve into the housing using a hydraulic press, ensuring it is aligned and goes in straight. The press fit interference (typically 0.02‑0.08 mm) will ensure the sleeve does not rotate in the housing. After installation, the sleeve should be flush or recessed by up to 0.5 mm from the housing face. Never leave the sleeve protruding, as this can trap contaminants and cause premature wear.
Before inserting the pin, lubricate the sleeve bore with NLGI #2 lithium‑based grease. Rotate the pin inside the sleeve to distribute the grease into the grooves. Assemble the joint and torque the retaining hardware. Cycle the joint through its full range of motion several times, then reapply grease until fresh grease emerges from the sides of the sleeve. This initial greasing is critical to prevent dry start‑up wear.
Aftermarket bearing sleeves are often manufactured from recycled bronze scrap with unknown composition. They may contain excessive lead, which makes them softer and accelerates wear, or have shrinkage porosity that weakens the structure. The genuine XCMG 273100567 is made from virgin, certified phosphor bronze with a proven chemical analysis. The quality control process ensures each sleeve meets the required hardness, tensile strength, and dimensional accuracy. Unlike generic bushing suppliers, XCMG provides a 12‑month warranty and technical support.
Counterfeit sleeves sometimes have the correct dimensions but lack the internal lubrication grooves or have them incorrectly positioned, resulting in poor grease distribution. The genuine XCMG sleeve has machined grooves that are designed to align with the grease hole in the housing, ensuring that lubricant reaches the entire bearing surface. Additionally, the groove edges are deburred to prevent scraping of the pin during rotation.
For fleet operators, standardising on genuine XCMG bearing sleeves simplifies inventory and ensures that every pivot joint has the correct clearance. A mismatched sleeve – for example, one with a slightly larger ID – will cause play from the start, leading to rapid pin wear. The genuine sleeve’s exact fit eliminates that risk. XCMG also offers a bushing installation kit with the proper driver tools for accurate, damage‑free pressing.
Common symptoms of a worn bearing sleeve include: excessive radial play at the joint (felt as a knock when shaking the component), visible scoring or galling on the sleeve ID after disassembly, difficulty in greasing (grease channels blocked), and oil leaks from the joint due to worn seals that allowed dirt ingress. Also, if the pin shows abnormal wear patterns (scratches, oval shape), the sleeve is likely worn beyond limits.
Preventive replacement is recommended every 5,000 operating hours for heavily loaded joints (articulation, blade lift) and every 8,000 hours for lighter pivots (steering). During routine service, check the joint for play; if you can see or feel any movement, replace the sleeve immediately. Always replace the sleeve and the pin together – a new sleeve on an old, worn pin will wear rapidly.
Store spare sleeves in a clean, dry area, preferably in the original sealed bag. Do not remove the light oil coating until installation. If the sleeve has been stored for over 12 months, inspect for “bronze disease” (green powdery corrosion) – though rare with genuine XCMG material – and clean with a mild solvent if necessary. Never use abrasive cleaning methods that could damage the precision surface.
The 273100567 Bearing Sleeve 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 critical repairs. Bulk orders (10+ sleeves) receive volume discounts and can be shipped via sea freight.
Each sleeve is individually wrapped in VCI paper and foam‑packed in a reinforced carton to protect the machined surfaces. Traceability labels and installation instructions are included. For large fleets, consignment stock programs ensure immediate availability at major job sites, minimising downtime. XCMG also provides technical support for selecting the correct sleeve size for non‑standard applications.
Order the genuine XCMG 273100567 Bearing Sleeve today and restore your motor grader’s pivot joint precision and durability. Whether you are rebuilding the articulation hinge or replacing a worn blade lift sleeve, XCMG delivers the quality and fit you expect. Don’t risk premature failure with unknown bronze – choose XCMG original.
Upgrade your motor grader’s reliability with XCMG genuine bearing sleeves. Engineered for low friction, high impact resistance, and long wear life – order the 273100567 now and experience the durability that keeps graders productive worldwide.
