255-2272 2552272 Heavy-Duty Floating Oil Seal for Bulldozer Track Roller Units 352F OEM

1. Quick Details of  seal 255-2272:

2. 255-2272 picture:

3. Service part number :

4. FAQ

Q: Is it available to purchase individual metal rings or rubber sleeves separately instead of the full set?
A: This floating oil seal is a matched paired assembly, and the two metal rings are lapped and tested as a complete set to guarantee sealing precision. We primarily sell it as a full assembly. If individual parts are accidentally damaged, you may provide detailed size and photos, and we can arrange supporting individual accessories for you accordingly.

Q: What is the full operating temperature range of this floating oil seal assembly?
A: The whole set can operate stably within the temperature range of -28°C to 128°C. The alloy cast iron structure will not deform under heat generated by high-frequency rolling, and the EPDM rubber retains good flexibility in low-temperature environments. It adapts to all-weather outdoor operation across different seasons and climate zones.

Q: What severe working environments do bulldozer track rollers face on construction sites?
A: Bulldozers mainly work on sticky mud, loose soil and stony ground. Track rollers are constantly buried in mud and sand, enduring heavy body load, frequent rolling impact and continuous mechanical vibration. The internal temperature rises obviously after long running, and parts are exposed to alternating dry and wet conditions all day long. These harsh conditions set high standards for impact resistance, mud resistance and durability of floating oil seals.

Q: What problems will be caused by adopting inferior floating oil seals?
A: Low-quality products use brittle ordinary cast iron and low-grade rubber. Metal rings are prone to cracking and rapid wear under impact, while rubber parts lose elasticity and deform quickly. Severe oil leakage will occur in a short time, leading to insufficient lubrication inside rollers, accelerated bearing wear and even roller jamming. External mud and sand will invade the internal structure, causing serious damage to shafts and bearings, bringing high maintenance costs and forcing the bulldozer to stop working.

Q: How about the overall mud-proof and dust-proof performance of this product?
A: The tightly fitted double metal sealing faces plus elastic rubber sleeves form a multi-layer blocking structure. It can effectively isolate thick mud, fine sand and floating dust on construction sites from entering the roller interior. Even when the bulldozer travels through deep mud pits for a long time, it can keep the internal lubrication system clean and prevent foreign contaminants from eroding moving parts.

Q: What packaging methods are used to protect the product during transportation and storage?
A: Each floating oil seal set is coated with anti-rust protective oil first, then wrapped with moisture-proof oil paper. After that, it is placed into individual rigid plastic boxes to avoid collision and scratch. Finally, all boxes are packed into reinforced cartons with foam padding. This packaging effectively prevents metal rust, surface damage and part dislocation during long-distance transportation and warehouse storage.

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