| OEM Number | 381600393 |
|---|---|
| Brand / Manufacturer | XCMG (Original Equipment) |
| Part Name | Bushing / Plain Bearing (Pivot Joint) |
| Material | High-strength bronze alloy (CuSn8P, SAE 660) |
| Outer Diameter (OD) | 48 mm ±0.02 mm |
| Inner Diameter (ID) | 40 mm +0.05/-0.00 mm (finished) |
| Length (L) | 60 mm |
| Wall Thickness | 4 mm (precision machined) |
| Dynamic Load Capacity | 142 kN (static radial) |
| Operating Temperature | -40°C to +150°C |
| Lubrication | Graphite-plugged self-lubricating (standard) or grease grooves optional |
| Hardness | HB 80–100 (annealed) |
| Compatible XCMG Graders | GR135, GR165, GR180, GR215, GR260, GR300 series |
| Certification | ISO 9001:2015, RoHS compliant |
The 381600393 Bushing is not a standard off-the-shelf component; it is engineered specifically for XCMG graders to withstand extreme cyclic loads and torsional stresses. The bushing features a unique spiral oil groove pattern that retains lubricant even under high-pressure conditions, significantly reducing wear in articulation joints and blade lift cylinders.
Unlike generic bushings, the genuine 381600393 undergoes 100% dimensional inspection and ultrasonic testing for internal voids. The bronze alloy composition provides excellent anti-seizure properties, making it ideal for high-load, low-speed applications like grader circle turn mechanisms and wheel lean pivots.
Field data from XCMG GR180 graders operating in quarry environments shows that the OEM bushing lasts over 12,000 hours before requiring replacement, outperforming aftermarket bronze bushings by 45%. This translates directly to lower total cost of ownership and reduced downtime for your fleet.
The 381600393 bushing is manufactured from continuously cast CuSn8P bronze, which offers superior wear resistance and fatigue strength compared to sintered or powdered metal alternatives. The material contains 8% tin and 0.2% phosphorus, which refines the grain structure and improves anti-friction properties. Each bushing is then precision-machined to IT7 tolerance class.
XCMG graders often operate in abrasive environments where sand, dust, and moisture can accelerate wear. The 381600393 bushing incorporates solid graphite plugs at 120-degree intervals, providing emergency lubrication even if external grease supply fails. This feature is critical for articulation joints where periodic greasing may be overlooked during busy work cycles.
Direct replacement for XCMG part 381600393. No reaming or modification required – exact match to housing bore and pin diameter.
Self-lubricating properties provide μ ≤ 0.10 under boundary lubrication, reducing heat generation and power loss.
Bronze alloy naturally resists rust and chemical attack, ideal for salt-spray environments and coastal job sites.
Static load rating of 142 kN supports heavy blade down-pressure and articulation torque without deformation.
Before installing the 381600393 bushing, clean the housing bore thoroughly and inspect for scoring or out-of-roundness. Use a hydraulic press with a proper mandrel to insert the bushing; never hammer directly. Ensure the oil hole (if present) aligns with the grease fitting channel. Apply anti-seize compound to the outer diameter before pressing.
For grader articulation joints, torque the pivot pin retaining bolt to 380-420 Nm. After installation, cycle the joint through full range of motion to distribute initial lubricant. Re-grease every 500 hours using NLGI #2 lithium grease with molybdenum disulfide additive. If unusual squeaking or play develops, inspect the bushing immediately.
Always keep spare bushings 381600393 in original packaging in a clean, dry area. Replace as a set for both sides of an articulation joint to maintain even wear. Record installation hours in your maintenance log for predictive replacement scheduling.
Counterfeit bushings often use inferior brass or low-grade bronze with incorrect tin content, leading to rapid wear, galling, and seizure. The genuine 381600393 bushing offers full traceability, laser-etched part number, and certification of conformance to XCMG standard Q/XCMP 022-2021. Aftermarket bushings may also have incorrect internal clearance, causing sloppy articulation and uneven tire wear.
By selecting the OEM 381600393, you protect your grader’s expensive pins and housing bores. A failed bushing can damage the parent component, requiring costly welding and re-machining. Genuine XCMG parts are designed as a system – the bushing, pin, and seal work together for optimal life.
For fleet managers, standardizing on the 381600393 bushing simplifies inventory across multiple XCMG grader models. One part number serves articulation joints, blade lift arm pivots, and circle drive shoes on GR135 through GR300. This reduces storage costs and eliminates ordering errors. Additionally, genuine XCMG bushings come with a 24-month warranty against manufacturing defects.
Order your genuine 381600393 Bushing today from authorized XCMG distributors. Using the “Send Email” or “Inquiry Now” buttons above, you can request a bulk quote, technical drawing, or expedited shipping options. Keep your XCMG grader operating with factory-spec precision and maximize machine uptime.
*All technical data based on XCMG original equipment standards. Performance may vary depending on installation and operating conditions. Always refer to your grader’s service manual for specific torque and lubrication intervals.
For any additional inquiries regarding the 381600393 Bushing or other XCMG grader undercarriage parts, please contact our parts specialists via the buttons above. We are dedicated to providing genuine components and expert technical support to keep your fleet operating at peak efficiency.
The 381600393 bushing also features an internal chamfer on both ends to facilitate pin insertion during assembly. XCMG’s continuous improvement program has added a micro-peening texture to the inner diameter, which retains a microfilm of oil even under extreme pressure. This reduces startup friction after long idle periods. For graders operating in freezing conditions, the bushing’s material maintains impact resistance down to -40°C, preventing brittle fracture. Invest in genuine XCMG quality and experience unmatched durability.
