Sealing ring-113-15-29250

Core Features

1. Leak-proof sealing: Seals the gap between the mating surfaces of components to prevent internal and external leakage of hydraulic oil/gear oil, maintaining stable system pressure and avoiding oil loss and environmental pollution.

2. Impurity isolation: Combined with a dustproof structure, it prevents dust, mud, and moisture from entering the sealed cavity, protecting internal precision components such as gears, valve cores, and cylinders.

3. Operating condition adaptability sealing: Maintains sealing performance under cold start, heavy load, and high temperature conditions, adapting to the frequent vibration and pressure fluctuations of bulldozers.

4. Component protection: Reduces dry friction of components caused by oil leakage, lowers the risk of wear on bearings, gears, and cylinder inner walls, and extends system life.

Product Superiority

1. Original Factory Precision Fit: Dimensional tolerance ≤ ±0.1 mm, high sealing groove matching, installation without machining, eliminating the risk of leakage due to dimensional deviations.

2. Oil and Aging Resistance: Mainstream materials are nitrile rubber (NBR) or fluororubber (FKM), resistant to mineral hydraulic oil/gear oil, stable operation from -30℃ to +100℃, anti-aging, and compression set ≤15%.

3. Strong Working Condition Resistance: Vibration and impact resistant, suitable for harsh environments such as high and low temperatures, dust, and oil contamination on construction sites. Static sealing pressure can reach 30–40 MPa, meeting the pressure requirements of hydraulic/lubrication systems.

4. Low Maintenance Costs: Easy installation, long service life (≥2000 hours under normal operating conditions), reducing downtime for replacement and lowering overall maintenance costs.

5.Good Compatibility: Compatible with original factory and high-quality aftermarket replacement parts, strong versatility, and more flexible procurement and inventory management.

Installation and Maintenance Points

Before installation, clean the sealing groove and mating surfaces to remove burrs, oil, and impurities to avoid scratching the sealing ring surface.

During installation, apply hydraulic oil/grease to the sealing ring, avoiding prying that could damage the lip. Ensure there is no twisting or stretching.

Tighten the bolts evenly diagonally (torque 25–45 N·m, according to the model manual) to prevent uneven stress on the mating surfaces.

Check the sealing surface for leaks every 500 hours, and replace the sealing ring every 1500–2000 hours to prevent aging and failure.Fit scenarios and value

Fit scenarios and value

Suitable for: Static sealing areas such as gearbox housing mating surfaces, main pump flange end faces, and hydraulic cylinder head/bottom end faces, especially suitable for high-intensity working conditions such as heavy-duty bulldozing and mining operations.

Core benefits: Reduces oil loss by approximately 90%, lowers downtime due to leakage, and extends the lifespan of core components such as the gearbox, main pump, and cylinders by approximately 15%–20%.