The genuine XCMG 380600533 Spacer is a precision‑ground wear shim used to adjust vertical clearance in motor grader circle drawbars, articulation joints, and blade pivot assemblies. This OEM 380600533 spacer is manufactured from case‑hardened steel with a corrosion‑resistant zinc‑nickel finish, providing exact thickness and flatness for reliable gap control. Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this spacer restores factory preload and eliminates excessive play in critical moving joints. A worn or missing spacer causes blade bounce, poor grading accuracy, and accelerated wear of the circle gear and wear strips. Replacing a damaged spacer with genuine XCMG 380600533 restores original clearances, reduces vibration, and extends the service life of your grader’s drawbar and circle drive system.
The spacer is typically installed between the upper clamping plate and the circle raceway, or between articulation hinge halves. Multiple spacers can be stacked to achieve the desired gap. XCMG 380600533 guarantees consistent hardness, perfect flatness, and long‑term dimensional stability under high clamping loads.
This component is also used in blade side‑shift mechanisms, steering link adjustments, and moldboard tilt shimming. XCMG 380600533 eliminates rattling, prevents uneven wear, and ensures smooth, precise blade control during grading operations.
| Parameter | Specification |
|---|---|
| OEM Number | 380600533 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Spacer / Wear Shim / Clearance Plate |
| Material | High‑carbon bearing steel (C60 / 1060), through‑hardened |
| Hardness (HRC) | 45‑50 HRC (uniform core and surface) |
| Nominal Thickness | 2.0 mm ±0.05 mm (also available 1.0, 1.5, 2.5 mm) |
| Overall Dimensions (L x W) | 160 mm × 80 mm ±0.3 mm |
| Bolt Hole Pattern | 2 holes, Ø10.5 mm, spaced 120 mm center to center |
| Surface Flatness | ≤ 0.05 mm over entire face (lapped finish) |
| Surface Finish (Ra) | ≤ 0.4 µm (ground and polished) |
| Corrosion Protection | Zinc‑nickel plating (360h salt spray) + oil impregnation |
| Compressive Yield Strength | ≥ 1400 MPa (203,000 psi) |
| Load Capacity (per plate) | 125 kN under uniform clamp load |
| Operating Temperature Range | -50°C to +180°C |
| Magnetic Particle Inspection | 100% (crack detection) |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380600522, 380600528, 380600531 |
The 380600533 spacer takes up slack between the circle drawbar and the upper clamping plate. Over time, wear strips and bronze bushings degrade, increasing vertical clearance beyond specification.
Excessive vertical play allows the blade to bounce during grading, causing washboarding and poor surface finish. The spacer plate restores factory preload, keeping the blade firmly on the ground.
In articulation joints, the spacer eliminates free play between the front and rear frames, reducing steering wander and improving machine stability.
Properly shimmed clearance also reduces wear on the circle gear and clamping plates, saving costly repairs. Replacing a worn spacer with genuine XCMG 380600533 is essential for maintaining grading accuracy.
Each 380600533 spacer is blanked from high‑carbon steel strip, then stress‑relieved to remove distortion. Both faces are ground parallel on a Blanchard grinder, achieving flatness within 0.05 mm.
After grinding, the spacer is through‑hardened to 45‑50 HRC and tempered for toughness. The final lapping operation produces a mirror finish with Ra ≤ 0.4 µm, minimizing galling against mating parts.
The zinc‑nickel coating provides sacrificial corrosion protection and acts as a solid lubricant during initial wear‑in. XCMG inspects each spacer for thickness using laser micrometers and for flatness using optical flats.
A sample from each batch is pull‑tested to verify compressive strength and is subjected to a 360‑hour salt spray test with no red rust allowed.
To adjust circle drawbar clearance, loosen the upper clamping plate bolts. Measure the gap between the plate and the circle using a feeler gauge. The target vertical play is 0.5‑1.0 mm.
Select the correct number of 380600533 spacers to achieve this clearance. Insert the spacer(s) between the clamping plate and the drawbar. Re‑torque bolts to 180 Nm in a crossing pattern and re‑check clearance.
For articulation joints, remove the joint pin, clean the faces, and add or remove spacers to achieve zero axial play when the pin is inserted. Lubricate plates lightly before assembly.
Never stack more than three spacers in one location to avoid bolt stretch. Always use genuine XCMG 380600533 – inferior shims deform and lose preload quickly.
Replace the 380600533 spacer if it becomes permanently deformed (cupping), if bolt holes elongate, or if the surface shows deep scoring from movement.
Also replace if you need a different thickness to adjust play, or if the existing spacer is cracked or corroded beyond recovery.
Check circle drawbar clearance every 1,000 operating hours. If vertical play exceeds 2 mm, install additional 380600533 spacers to bring it back to 0.5‑1.0 mm.
Inspect articulation joints for free play during every lubrication service. Add spacers as needed to eliminate axial movement. A properly shimmed joint will have no detectable play when the machine is on level ground.
Keep a kit of various thickness spacers (1.0, 1.5, 2.0, 2.5 mm) in your parts inventory. The cost of a set of spacers is minimal compared to rebuilding a worn circle raceway or replacing an articulation hinge.
During major overhauls (every 8,000 hours), replace all spacers regardless of condition to ensure fresh metal for consistent preload.
Genuine XCMG 380600533 spacers are backed by a 12‑month warranty. Regional warehouses: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China).
Standard air freight delivers within 3‑7 business days worldwide. Express 24‑48 hour shipping available for urgent repairs. Bulk orders (50+ spacers) receive volume discounts and sea freight options.
Aftermarket shims are often made from mild steel without heat treatment, quickly deforming and losing preload. Genuine XCMG 380600533 uses hardened bearing steel for permanent dimensional stability.
Don’t ignore excessive play in the circle drawbar – it leads to accelerated wear of the circle gear and clamping plates. The 380600533 spacer is an inexpensive solution to a potentially expensive problem. Keep spares on hand and shim proactively.
Order the genuine XCMG 380600533 Spacer today and maintain tight, vibration‑free circle and articulation joints for thousands of productive hours.
Upgrade your motor grader’s adjustment capability with XCMG genuine spacer plates – precision ground, case‑hardened, and dimensionally accurate.
