803192131 XCMG GR2605 motor grader O-ring

803192131 XCMG GR2605 motor grader O-ring

Part Number: 803192131
Compatible Model: XCMG GR2605 Motor Grader
Product Positioning: A sealing core specifically designed for the hydraulic system of the GR2605 motor grader, used for static/dynamic sealing of key components such as valves, flanges, and pipe joints to prevent hydraulic oil leakage.

Key Technical Parameters

1. Sealing and Pressure Performance
Rated Working Pressure: ≤32MPa (suitable for high-pressure hydraulic systems)
Leakage Rate: ≤0.001cm³/h (under rated pressure)
Applicable Media: Compatible with hydraulic oil, lubricating oil, fuel oil, and other commonly used media in engineering machinery
Working Speed: Unlimited for static sealing, ≤0.6m/s for dynamic sealing

2. Structure and Dimensions
Structure Type: Standard O-ring (circular cross-section)
Dimensional Standard: Complies with GB/T 3452.1-2005 O-ring standard
Core Dimensions: Inner diameter × wire diameter = 38mm × 5.3mm (tolerance ±0.15mm)
Hardness Grade: Shore hardness 78±5HA (balancing sealing force and flexibility)

3. Material and Weather Resistance
Body Material: Imported fluororubber (FKM/Viton), excellent chemical stability
Operating Temperature Range: -25℃~155℃ (wide temperature range suitable for harsh working conditions)
Abrasion Resistance: Wear ≤0.018cm³ (ASTM D1646 test standard)
Aging Life: ≥5500 hours of continuous operation at 120℃

Core Functions and Application Scenarios

1. Main Functions
Static Sealing: Used for sealing static parts such as flange faces, valve assembly interfaces, and pipe joints.
Dynamic Sealing: Suitable for sealing interfaces of low-speed moving parts (such as valve cores and piston rods).
Anti-fouling Protection: Prevents external dust and mud from entering, protecting the cleanliness of the hydraulic system.
Buffering and Shock Absorption: Utilizes rubber elasticity to buffer interface vibration and reduce wear on the sealing surface.

2. Suitable Operating Conditions: Heavy-duty operations such as highway construction, mine stripping, and airport runway construction; hydraulic system scenarios involving high pressure, high-frequency vibration, and large temperature fluctuations in the medium; harsh operating environments with high dust levels, mud and water corrosion, and contact with chemical media.

Product Advantages:

Original Equipment Manufacturer (OEM) Compatibility: Precisely matches the sealing groove dimensions of GR2605 hydraulic components, allowing for direct installation without modification.
Superior Sealing: Fluororubber material + precise dimensional control ensures no leakage under high pressure and strong sealing stability.
Durable: Resistant to high and low temperatures, anti-aging, and wear-resistant, with a service life more than 2.2 times that of ordinary rubber O-rings.
Wide Compatibility: Compatible with various engineering machinery media, meeting the sealing needs of different parts.
Easy Installation: Flexible structural design allows for simple disassembly and assembly, and high efficiency in maintenance and replacement.

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