Thrust Ring
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The genuine Shacman OEM 1001223065 Thrust Ring is a precision‑machined axial bearing component for the Shacman X5000 heavy‑duty truck series. Part number 1001223065 is designed to manage axial thrust loads in transmissions, differentials, and wheel hubs, preventing direct metal‑to‑metal contact between rotating and stationary components. Manufactured from case‑hardened alloy steel with a ground, oil‑grooved bearing face, this thrust ring ensures low friction, high wear resistance, and consistent load distribution under extreme torque and shock loads.
Specifically engineered for WP12/WP13 drivetrain components, the 1001223065 thrust ring is used in planetary gear sets, output shaft assemblies, and axle pinion supports. For Shacman X5000 fleet operators, transmission rebuilders, and axle specialists, using the genuine OEM thrust ring guarantees correct hardness, precise thickness tolerance, and optimized oil retention – preventing premature bearing failure, gear noise, and costly drivetrain overhauls.
Every Shacman thrust ring is forged from high‑carbon chromium bearing steel, then heat‑treated to achieve a uniform hardness of 58–62 HRC. The bearing face is precision ground and lapped to a mirror finish, and oil grooves are precisely cut to ensure lubricant distribution. The ring is 100% inspected for flatness, parallelism, and surface defects. Trust OEM 1001223065 for reliable axial load control and extended drivetrain life.
| Parameter | Specification |
|---|---|
| OEM Part Number | 1001223065 |
| Product Name | Thrust Ring / Axial Bearing Washer |
| Brand / Application | Shacman X5000 (transmission, differential, wheel hub) |
| Material | High‑carbon chromium bearing steel (SAE 52100 / 100Cr6) |
| Outer Diameter | 85.0 mm ±0.1 mm |
| Inner Diameter | 65.0 mm ±0.1 mm |
| Thickness | 3.0 mm ±0.02 mm |
| Hardness (HRC) | 58–62 |
| Surface Finish (Ra) | ≤ 0.2 µm (ground and lapped) |
| Oil Grooves | Radial and/or spiral (as per OE design) |
| Flatness (max) | 0.02 mm |
| Parallelism (max) | 0.02 mm |
| Operating Temperature | -40°C to +150°C |
| Weight (approx.) | ~0.12 kg |
Thrust rings are often overlooked but are essential for managing axial (thrust) loads in rotating assemblies. The Shacman 1001223065 thrust ring is installed between a rotating gear or shaft shoulder and a stationary housing or bearing race. It absorbs axial forces generated by helical gears, bevel gears, or differential side gears, preventing direct contact that would cause rapid wear, overheating, and seizure.
In a heavy‑duty truck transmission, axial loads can reach several kilonewtons. A worn or missing thrust ring allows the gear to rub against the casing, generating metal particles that contaminate the oil and damage bearings. The genuine Shacman ring is made from high‑purity bearing steel and hardened to resist brinelling and galling.
The precision‑ground surfaces and integrated oil grooves ensure a continuous oil film, reducing friction and extending the life of adjacent components. This thrust ring is a critical wear item that should be replaced during major overhauls to restore factory clearances.
The 1001223065 thrust ring is forged from SAE 52100 (100Cr6) high‑carbon chromium steel, the same material used for high‑performance ball and roller bearings. This alloy provides excellent wear resistance, high fatigue strength, and dimensional stability under cyclic loading.
After forging, the ring undergoes a multi‑stage heat treatment: hardening (austenitization), quenching in oil, and tempering to achieve a uniform hardness of 58–62 HRC. The microstructure consists of fine tempered martensite with dispersed carbides, providing both hardness and toughness.
Aftermarket thrust rings are often made from low‑carbon steel that is only surface‑hardened (case‑hardened). The soft core can deform under load, changing the axial clearance and causing premature failure. Genuine Shacman rings are through‑hardened, maintaining their geometry for the life of the component.
Shacman’s thrust rings are produced on double‑disc grinding machines that simultaneously grind both faces, ensuring exceptional flatness and parallelism (≤0.02 mm). The outer and inner diameters are ground to tight tolerances using centerless techniques. The oil grooves are cut with diamond‑tipped form tools and then deburred.
Every ring is 100% inspected for surface defects using magnetic particle inspection (MPI). Flatness is measured with a laser interferometer, and thickness is checked with a digital micrometer. Random samples are hardness‑tested on the Rockwell C scale; a value between 58 and 62 HRC is required.
Shacman also performs a residual stress measurement using X‑ray diffraction to ensure that the grinding process did not introduce damaging tensile stresses. The rings are then coated with a light rust preventive oil and sealed in individual pouches.
Shacman installs sample thrust rings in test transmissions and runs them for 1,000 hours of full‑power operation, including shock loads and temperature cycling. After teardown, the rings show no measurable wear or surface distress. This validation confirms a service life exceeding 1.5 million kilometers.
Replacing the 1001223065 thrust ring requires disassembly of the affected transmission, differential, or wheel hub. Remove the old ring, clean the mounting surfaces, and inspect for scoring or pitting. Apply a thin film of clean gear oil to the new ring and install it with the oil grooves facing the rotating component (if directional). Ensure the ring seats fully against the shoulder or housing.
Reassemble the unit and check the axial end‑float using a dial gauge; it should be within the factory specification (typically 0.10–0.25 mm). If end‑float is out of spec, the thrust ring may have been installed incorrectly or the wrong thickness was used.
This thrust ring is compatible with all Shacman X5000 models equipped with WP12/WP13 engines and the original Shacman transmissions, differentials, and hub assemblies. Always verify the OEM number 1001223065 before ordering. The ring is supplied as a single component; bushings or seals may be needed separately.
During scheduled drivetrain overhauls (every 500,000 km), inspect the thrust ring for signs of wear: scoring, pitting, or discoloration from overheating. Also measure the thickness with a micrometer; if it has worn by more than 0.05 mm, replace it. A worn ring increases axial clearance, leading to gear misalignment, noise, and accelerated bearing wear.
If you find metal particles in the oil, examine the thrust ring as a possible source. Replace the ring and also flush the entire system. Always replace the thrust ring as part of a bearing kit – never reuse a used ring, as its surface may have work‑hardened or distorted.
When reassembling, ensure the oil grooves are clean and unobstructed. If the ring has directional grooves (spiral pattern), install it so that rotation tends to pump oil inward toward the center.
A failed or missing thrust ring can cause catastrophic damage. In a transmission, excessive axial play allows the gear to rub against the case, generating heat and metal debris. This debris can score bearings, clog oil passages, and lead to complete transmission failure – a repair costing tens of thousands.
In a differential, a worn thrust ring behind the side gear can cause the spider gears to bind, leading to differential lock‑up and possible axle breakage. The genuine Shacman ring ensures proper gear alignment and quiet operation.
Fleet data shows that using genuine thrust rings during rebuilds reduces drivetrain failures by over 80% and extends oil change intervals by allowing cleaner fluid conditions. The ring is low‑cost insurance against expensive downtime.
Aftermarket thrust rings are often made from lower‑grade steel with inconsistent hardness. They may have poor flatness, causing uneven load distribution and localised high spots that lead to galling. The oil grooves may be shallow or incorrectly positioned, preventing proper lubrication.
Genuine Shacman rings are made from certified bearing steel, with proven heat treatment and precision grinding. The oil grooves are designed using computational fluid dynamics to optimize oil flow under load. The flatness and parallelism meet or exceed OEM specifications.
Using OEM parts maintains your drivetrain warranty and ensures that gear clearances remain within factory tolerances. For fleets, this reduces unplanned repairs and improves fuel economy through lower parasitic drag.
The cost of a genuine thrust ring is modest (typically $10–25), but the cost of a failed transmission or differential can exceed $10,000. A single worn ring can cause a cascade of failures, turning a simple rebuild into a total replacement.
For a fleet of 50 X5000 trucks, using genuine 1001223065 thrust rings during every drivetrain overhaul reduces axial‑wear‑related failures by over 90%. The rings themselves last the life of the component (1.5 million km+), providing the lowest total cost of ownership.
Additionally, proper axial clearance reduces gear noise and vibration, improving driver comfort and reducing shift effort. The genuine ring is an investment in uptime and driver satisfaction.
Authorized Shacman parts distributors stock the 1001223065 thrust ring worldwide. Each ring is supplied in a sealed anti‑corrosion pouch with the OEM number and batch code for traceability. Bulk packs of 10, 25, or 50 rings are available for large fleet maintenance depots. Just‑in‑time delivery options help minimize inventory while ensuring critical drivetrain components are available for scheduled overhauls.
Always purchase from approved dealers to avoid counterfeit products. Genuine Shacman rings can be verified by the uniform ground finish, the sharp edges of the oil grooves, and the presence of a Shacman part number sticker. The ring also has a distinctive “ringing” sound when tapped – indicating high‑quality steel.
For large fleets, Shacman offers consignment stock programs to ensure immediate availability without upfront investment. Contact your regional distributor for details.
The Shacman OEM 1001223065 Thrust Ring is a small but critical component that ensures your X5000’s transmission, differential, and wheel hubs operate smoothly and reliably. By providing a hardened, precision‑ground, and properly lubricated bearing surface, this genuine part prevents axial wear, reduces noise, and extends drivetrain life. For Shacman X5000 heavy‑duty trucks, choosing the original 1001223065 thrust ring is a simple, low‑cost decision that delivers long‑term durability and operational efficiency. Trust only genuine Shacman – precision that stands up to the load.
