07011-10035 0701110035 HNBR Steel Rear Wheel Hub Oil Seal Repair Kit for WA470-8 Medium-Large Wheel Loader Rear Drive Axle Overhaul

1. Quick Details of  seal 07011-10035:

2. 07011-10035 picture:

3. Service part number :

4. FAQ

Q: Which medium-large wheel loader model fits this full rear wheel hub oil seal kit 07011-10035, and what rotary and static sealing components are integrated inside this dedicated rear drive axle overhaul package?
A: This factory certified oil seal kit marked 07011-10035 is specially developed for WA470-8 medium-large wheel loaders, installed on the rotating output shaft of the rear wheel hub assembly. The rear hub shaft bears continuous heavy-duty alternating torque loads during open-pit mine ore stockpiling, long-distance mountain gravel transportation and large-scale construction waste centralized loading operations, suffering frequent violent bump impacts from rugged muddy and rocky construction ground, while enduring year-round outdoor erosion of dust, rainwater splashes and extreme temperature differences between freezing winter and sweltering summer. This all-in-one integrated sealing kit contains all rotary main oil seals, tension coil springs and multi-size static O-rings required for full disassembly and complete overhaul of the rear wheel hub. It realizes bidirectional isolation protection for the internal hub bearing cavity: it blocks low-viscosity drive gear oil from leaking outward to avoid bearing dry grinding and overheating ablation damage, and prevents external mud, sharp fine rock gravel and floating construction dust from invading the bearing chamber to reduce abrasive wear of rolling bearing assemblies. The kit includes HNBR steel skeleton integrated main rear hub oil seals, super mirror polished stainless steel tension garter springs and multi-spec EPDM static O-rings matched for rear axle split flanges. All spare parts are pre-classified and sealed in independent labeled transparent plastic pouches, divided into rotary shaft seal group and flange static sealing group, which can greatly shorten the maintenance cycle of medium-large wheel loaders at open-pit mine equipment repair yards and large industrial construction machinery service stations.

Q: What exclusive three-material composite sealing performance advantages does this hub oil seal assembly possess compared with low-cost single NBR oil seals sold in aftermarket spare parts stores for WA470-8 rear wheel hubs?
A: The rear hub rotary shaft of WA470-8 medium-large wheel loaders runs under long-term continuous medium-high speed rotary friction and irregular rocky ground bump alternating impact pressure every working shift, immersed in low-viscosity drive gear oil mixed with fine mineral mine dust and tiny metal bearing wear debris all year round, while exposed to muddy rain splashes, winter subzero frost and wind-blown hard rock grit across four construction seasons. Reinforced HNBR hydrogenated nitrile rubber main dynamic sealing lip integrates excellent low-temperature flexibility, gear oil aging resistance and anti-particle abrasion performance that ordinary single NBR rubber cannot match; it will not harden and lose tight fitting adhesion with the shaft after cold startup at high-altitude mountain mine construction sites in winter, and will not swell, soften or deform after long-term immersion in high-temperature circulating gear oil during non-stop summer heavy-load construction shifts. The hot-dip galvanized rolled steel outer skeleton provides stable circular rigid support for the rubber sealing lip, effectively preventing the oil seal from shifting, twisting and slipping out of the mounting groove under frequent forward-reverse heavy torque impact, and the thick uniform hot-dip galvanized coating delivers far superior long-term salt spray rust resistance against rain and mud corrosion compared with thin single-layer electroplated zinc coatings. High-tensile super mirror polished stainless steel alloy garter spring continuously clamps the sealing lip tightly against the shaft surface, automatically compensating tiny abrasion of the lip generated by long-term uninterrupted rotation and significantly extending the overall service cycle of the whole sealing assembly. EPDM flange static O-rings maintain stable soft elastic performance under long-term low-temperature freezing mountain mine environments, eliminating hidden slow oil seepage at the split flange joint surface of the rear axle housing. This multi-layer matched composite protection system extends the full service life of this rear wheel hub oil seal kit by more than 93% compared with traditional low-cost single-material NBR oil seal kits.

Q: How can on-site professional medium-large construction machinery maintenance technicians quickly distinguish each different sealing component through exclusive color, surface texture and structural shape characteristic differences inside this 07011-10035 rear wheel hub oil seal kit?
A: Integrated HNBR steel skeleton main rear wheel hub oil seals are solid pure black circular integral parts, wrapped with obvious silvery matte hot-dip galvanized metal steel skeleton on the outer ring, adopting an asymmetrical double-lip internal layout: the inner primary lip serves as high-pressure drive gear oil dynamic sealing lip, a circular super mirror polished stainless steel alloy tension garter spring is pre-installed on the inner circumference, and the middle hollow cavity is pre-filled with low-temperature anti-wear lithium-based lubricating grease specially developed for medium-heavy open-pit mine construction working conditions. Independent super mirror polished stainless steel alloy tension garter springs are bright silver ultra-smooth thin circular coil springs, which can be easily distinguished from large integrated steel skeleton oil seals with nitrile rubber inner surfaces through surface smoothness, outline shape and overall volume gaps. Multi-size EPDM static flange O-rings are light ivory elastic circular rings with multiple inner diameter dimensions to match different circular sealing grooves of rear drive axle housing flanges, visually distinguishable from solid pure black HNBR main oil seal lips through obvious color tone contrast. Every single sealing component is marked with precise micro laser engraved dimension identification codes matching WA470-8 rear wheel hub shaft parameters, greatly accelerating rapid sorting and accurate parts matching during on-site medium-large wheel loader rear wheel hub full disassembly overhaul operations. Inferior single-rubber replacement products have no built-in metal supporting skeleton, slippery surfaces covered with excessive release agent residue, unstable rubber hardness and lack clear laser engraved part number markings on each accessory.

Q: What full range of temperature and continuous medium-high speed rotary friction + uneven rocky construction ground bump impact alternating cyclic pressure working conditions can this HNBR hot-dip galvanized steel composite oil seal kit withstand to deliver stable long-term all-weather medium-heavy load mine construction leak-proof sealing performance?
A: This complete rear wheel hub shaft oil seal unit can steadily operate under continuous drive axle static pressure of 0.6–1.35 bar, and withstand repeated instantaneous uneven rocky ground bump peak pressure surges up to 2.0 bar without permanent sealing lip deformation, HNBR rubber cracking or hot-dip galvanized steel skeleton coating peeling failure. HNBR rubber sealing lips and EPDM O-rings retain complete elastic recovery and stable shaft rotary sealing function within a wide working temperature window of -49°C ~ +134°C, fully adapting to frozen mountain open-pit mine cold-start operation in winter and non-stop high-temperature long-distance ore stockpiling loading operation during hot summer months. Hot-dip galvanized steel skeletons and super mirror polished stainless steel alloy garter springs resist softening, warping and permanent deformation after millions of continuous medium-high speed shaft rotation cycles and frequent extreme hot-cold temperature alternations, providing consistent zero-leakage rear wheel hub bearing protection across all year-round outdoor mine and industrial aggregate loading environments. The built-in secondary multi-lip dust-proof structure can block hard fine rock sand and tiny mud gravel particles from construction yards entering the bearing cavity, effectively reducing bearing abrasive wear and abnormal driving vibration noise faults.

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