The 860110289 Snap-On Seal Ring is a genuine XCMG sealing assembly combining a split external retaining ring with a bonded elastomeric quad‑ring seal. It is designed for motor grader hydraulic cylinders, bearing housings, and pivot pin retention points on XCMG GR135 through GR350 models.
This unique component provides both axial retention (mechanical locking) and fluid sealing within a single, compact assembly. The snap ring secures components onto a shaft or inside a bore, while the integrated rubber seal prevents oil or grease leakage past the retention groove.
Manufactured from high‑carbon spring steel with an NBR (nitrile rubber) quad‑ring bonded to its inner circumference, the 860110289 snap‑on seal ring withstands hydraulic pressures up to 25 MPa and temperatures from -40°C to +120°C.
A damaged or missing snap‑on seal ring can cause both axial movement of bearings or gears and external oil leaks, leading to catastrophic contamination and component failure.
Replacing a worn or broken assembly with the genuine XCMG 860110289 restores both mechanical retention and sealing integrity, preventing costly downtime.
The 860110289 is commonly used in the grader’s circle rotation pivot housing, blade lift cylinder trunnion mounts, and final drive planetary gear retention grooves.
Its split design allows installation without special tools – standard snap ring pliers expand the ring into a groove, where the rubber seal compresses to form a static seal against the housing or shaft.
Using genuine XCMG guarantees correct groove fit, rubber hardness (70 Shore A), and spring steel quality for long‑term sealing and retention.
Never reuse a snap‑on seal ring once removed – the spring steel loses tension and the rubber seal takes a permanent set. Always install a new genuine 860110289.
Order the XCMG snap‑on seal ring today to eliminate two failure points (retention and sealing) with one precision component.
| Parameter | Specification |
|---|---|
| OEM Number | 860110289 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Snap‑On Seal Ring (Split ring + bonded quad seal) |
| Nominal Diameter (Groove) | 60 mm (internal snap ring for shaft, or external for bore) |
| Ring Material | Spring steel (C67S / 1.1231), hardened 44-51 HRC |
| Seal Material | Nitrile rubber (NBR) – 70 Shore A, bonded to ring |
| Seal Cross‑section | Quad‑ring design (4 lobes) – 2.5 mm thickness |
| Maximum Static Sealing Pressure | 25 MPa (3,625 psi) – hydraulic oil |
| Operating Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Axial Retention Force (static) | ≥ 12 kN (resists bearing walk‑out) |
| Surface Finish (Ring) | Zinc‑phosphate + oil dip, 240h salt spray |
| Installation Tool | External or internal snap ring pliers (depending on orientation) |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 motor graders |
| Superseded Part Numbers | 860110232, 860110277, 860110351 |
The XCMG 860110289 Snap-On Seal Ring serves two essential functions in grader hydraulic systems and rotating assemblies: it mechanically locks components onto shafts or inside bores, and it seals against fluid leakage past the retention groove.
In the circle rotation pivot housing, this ring prevents the large roller bearing from sliding upward while also keeping gearbox oil from leaking past the groove.
A traditional snap ring requires a separate O‑ring to seal the groove; the 860110289 integrates both, reducing part count and assembly errors.
If the snap ring loses tension, the bearing can shift axially, causing misalignment and rapid wear of gear teeth.
If the rubber seal deteriorates, oil seeps past the groove, contaminating the environment and starving downstream bearings of lubrication.
The 860110289’s bonded quad‑ring provides four sealing lips that maintain contact even if the ring rotates slightly in the groove.
Replacing a failed assembly with genuine XCMG 860110289 eliminates both failure modes with one service operation, saving labor and parts cost.
Each 860110289 snap‑on seal ring begins as a precision‑stamped spring steel blank, then heat‑treated to achieve the required spring constant and hardness.
After deburring, the ring is cleaned and passes through an automated bonding press where the NBR quad‑ring is molded directly onto the inner circumference.
The bonding process is validated by peel tests to ensure the rubber cannot separate from the steel during installation or service.
XCMG’s quality control includes 100% visual inspection for cracks, porosity, or bonding voids, plus sample testing for groove fit using GO/NO‑GO gauges.
The rubber is tested for oil resistance (IRM 903 oil at 120°C for 168 hours) and compression set (≤25%).
Genuine 860110289 rings are laser‑marked with the XCMG logo and part number for traceability.
Counterfeit snap‑on seal rings often use cheap rubber that hardens or swells, and their spring steel may have inconsistent temper leading to premature loss of retention.
Insist on genuine XCMG for reliable bonding and precise spring force.
Installing the 860110289 snap‑on seal ring requires the correct type of snap ring pliers (external or internal depending on groove orientation).
Before installation, thoroughly clean the groove and remove any old seal residue. Inspect the groove for burrs or corrosion.
Lubricate the rubber seal lightly with clean hydraulic oil or grease to prevent tearing during expansion.
Compress or expand the ring using pliers, then guide it into the groove. Ensure the ring fully snaps into place – it should sit flush and not rotate out of the groove.
Never reuse a snap‑on seal ring after removal – the spring steel will have taken a set and the rubber will be compressed permanently.
XCMG recommends replacing the 860110289 whenever the associated bearing or hydraulic component is overhauled, or every 5,000 operating hours.
After installation, verify that the retained component (bearing, gear) has minimal axial play (≤0.1 mm) and that no oil weeps from the groove.
Keep spare 860110289 rings in your parts inventory for planned maintenance and emergency repairs.
Aftermarket snap‑on seal rings often use a standard O‑ring glued onto a snap ring – the glue fails quickly, allowing the O‑ring to twist and leak.
Genuine XCMG 860110289 features a chemically bonded quad‑ring that cannot separate from the steel ring, even under extreme pressure cycling.
Many generic rings have incorrect groove width or ring thickness, causing the seal to be either over‑compressed (leads to extrusion) or under‑compressed (leaks).
The genuine 860110289 is manufactured to XCMG’s exact groove dimensions, ensuring perfect fit and seal compression every time.
Counterfeit rings often use carbon steel that rusts rapidly, and the rubber hardens after a few heat cycles, losing flexibility.
XCMG provides a 12‑month warranty against bonding failure or material defects. Protect your grader with genuine parts.
For fleet operators, the reliability of genuine 860110289 translates into fewer hydraulic leaks and less unscheduled maintenance.
Indicators that the 860110289 snap‑on seal ring needs replacement include: visible oil weeping from the groove area, excessive axial play in the retained component, and visible cracks or rust on the exposed ring portion.
If the ring can be rotated easily within the groove by hand, it has lost its spring tension and must be replaced.
During routine hydraulic filter changes (every 1,000 hours), inspect accessible snap‑on seal rings for corrosion or seal hardening.
Preventive replacement is recommended every 5,000 hours or whenever the associated bearing or cylinder is disassembled.
The cost of a genuine 860110289 is negligible compared to the cost of a hydraulic oil leak cleanup or bearing walk‑out damage.
Keep a stock of these rings in your service truck – they are often needed unexpectedly during pivot pin repairs.
When installing, always wear safety glasses – snap ring pliers can slip and launch the ring.
A properly retained and sealed joint operates quietly and cleanly. Replace suspect rings immediately.
The 860110289 Snap-On Seal Ring is stocked in XCMG’s regional hubs: North America (Houston), Europe (Rotterdam), Middle East (Dubai), and Asia (Shanghai).
Standard air freight delivers within 2‑5 business days worldwide; express courier (DHL/FedEx) is available for 1‑2 day urgent shipments.
Bulk orders (50+ rings) can be shipped via sea freight with volume discounts. Each ring is individually sealed in a plastic bag to protect the rubber seal.
For large fleets, XCMG offers consignment stock programs – rings are stored on‑site and billed as used, eliminating order lead times.
Don’t let a failed snap‑on seal ring cause oil leaks or component walk‑out. The genuine XCMG 860110289 delivers both mechanical retention and leak‑free sealing in one component.
Order today and ensure your grader’s pivot points, bearings, and hydraulic cylinders stay secure and sealed for the long haul.
Upgrade your motor grader’s reliability with the XCMG 860110289 Snap-On Seal Ring – engineered for perfect fit, reliable bond, and long service life.
Choose genuine XCMG for the confidence that every seal and snap ring will perform as designed, keeping your grader productive and leak‑free.
Order the 860110289 now and eliminate two failure points with one OEM solution.
