4179741 4179741 Buy SEAL;GROUP 4179741 Hitachi genuine, new aftermarket tractor parts with delivery EX100, EX120

1. Quick Details of  seal 4179741:

2. 4179741 parts on group :

3.  4179741  picture:

4. Service part number :

5. FAQ
Q: What are the advantages of using GCr15 bearing steel and NBR65 rubber for this seal?
A: The GCr15 bearing steel offers high hardness, excellent wear resistance, and good dimensional stability. Its precision-ground sealing surface (Ra ≤ 0.2μm) ensures minimal friction and long-term durability under light-to-medium loads. The NBR65 rubber provides superior oil resistance, enhanced abrasion resistance, and stable elasticity. It performs reliably at -30°C to 130°C, adapting to various gear oils and harsh working environments without aging or cracking.

Q: Could you describe the appearance, color, and structural design of 4179741 in detail?
A: The metal ring features a metallic silver-gray finish with a smooth, mirror-like sealing surface, free of burrs or defects. The rubber ring is solid black with a robust rectangular cross-section. The assembly is a paired dual-ring design (2 metal rings + 2 rubber rings), optimized for small excavator travel systems. It has a compact, space-saving structure with a tight, precise fit to ensure consistent sealing performance in high-vibration conditions.

Q: What are the operating temperature, pressure rating, and expected service life of this seal under typical working conditions?
A: It operates reliably in a temperature range of -30°C to +130°C, suitable for most construction sites in cold, temperate, and subtropical regions. It withstands a maximum pressure of 2.2MPa, meeting the sealing requirements of small excavator travel gearboxes. Under normal working conditions (general construction, landscaping), the service life is 6,000–8,000 hours, and 4,000–6,000 hours in muddy or dusty terrain, outperforming standard seals by 25%.

Q: What quality control processes does each batch of 4179741 undergo, and what is the warranty coverage?
A: Each batch of products undergoes 100% dimensional inspection, hardness testing, surface roughness testing, and pressure leakage testing to ensure compliance with strict quality standards. The metal ring is coated with anti-rust oil, and each set is individually packaged in anti-rust paper and dust-proof plastic bags, then placed in a hard carton with foam padding for protection during shipping. The warranty period is 18 months or 3,000 working hours (whichever comes first), covering manufacturing defects and quality issues under normal use.

6. Exhibition and Wearhous

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