07010-00045 0701000045 HNBR PU FKM Carbon Filled PTFE Multi-Material Composite Oil Seal Kit for Bulldozer Travel Motor Overhaul Service

1. Quick Details of  seal 07010-00045:

2. 07010-00045  picture:

3. Service part number :

4. FAQ

Q: What exclusive performance advantages does the four-material composite collocation bring to bulldozer travel motor sealing compared with ordinary single NBR seal kits?
A: Bulldozer travel motors run continuously at variable rotating speeds during uphill, downhill and flat ground pushing operations, enduring long-term high-pressure rotary friction, frequent instantaneous pressure surges from load changes, and year-round erosion of mixed mud, gravel and stagnant water seeping into motor housing gaps. HNBR main rotary shaft seals own far superior low-temperature flexibility and anti-transmission hydraulic oil aging performance than conventional ordinary NBR rubber; they will not harden, crack or lose radial pre-tightening elasticity under subzero cold plateau winter construction environments. Wedge-shaped PU buffer rings absorb sudden hydraulic pressure spikes generated by sudden start, stop and climbing load changes, avoiding direct tearing damage to thin rotary shaft sealing lips. FKM static O-rings maintain stable sealing tightness under long-hour high-temperature hydraulic oil circulation during uninterrupted all-day pushing work. Carbon-filled PTFE backup rings deliver stronger wear resistance and anti-extrusion capacity than unfilled pure PTFE, effectively preventing the main seal from being squeezed into tiny gaps between rotary shaft and motor housing under instantaneous peak pressure. The four materials form a multi-layer interlocking high-speed rotary heavy-load protection system, lifting the overall service life of the seal kit by over 47% compared with traditional single-rubber seal kits.

Q: What distinct color and structural visual differences allow maintenance technicians to quickly identify each component inside this travel motor seal kit?
A: HNBR rotary shaft and piston main seals are matte deep black with double-lip rotary integrated sealing structure, the contact lip surface undergoes precise mirror polishing without burrs or micro scratches. Wedge-shaped PU buffer rings are light apricot yellow with exclusive triangular wedge shock absorption outline, visually distinguishable from arc, oval and circular buffer rings used on hydraulic valves, pumps and single-action cylinders. FKM static O-rings are dark coffee brown with uniform round cross-section, no shrinkage or permanent deformation after long-term warehouse storage. Carbon-filled PTFE anti-extrusion rings are off-white with evenly scattered tiny black carbon particles on the surface, easy to tell apart from light gray graphite-filled PTFE rings for hydraulic valve assemblies. The heavy-duty dust wiper is thick black with dual internal and external scraping lips; the outer thick lip blocks large mud clumps and gravel, while the inner fine lip filters tiny abrasive dust particles. Each accessory is printed with clear travel motor matching size marks on the surface for fast sorting and matching during on-site assembly.

5. Exhibition and Wearhous

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