07011-00120 0701100120 SEAL,OIL OF GD40HT-2 GD705R-1

1. Quick Details of  seal 07011-00120:

2. 07011-00120 parts on group :

3. 07011-00120  picture:

4. Service part number :

5. FAQ

Q: Which Komatsu eighth-generation heavy wheel loader model is compatible with this 07011-00120 rear wheel hub oil seal kit, and what full set of sealing components are included in this exclusive hub maintenance service pack?
A: This OEM matched oil seal kit 07011-00120 is specially manufactured for Komatsu WA500-8 large heavy wheel loaders, assembled on the rotating output shaft of the rear wheel hub assembly of the four-wheel drive transmission system. The rear wheel hub shaft runs at stable medium-high rotating speed during large mine bulk ore stacking, long-distance sand yard transportation and large-scale construction waste centralized loading work, bearing long-term heavy driving torque and frequent uneven mine road bump impact loads. This integrated all-in-one seal kit contains all sealing spare parts required for a full rear wheel hub disassembly and overhaul, which can thoroughly block heavy-duty transmission gear oil leakage at the shaft penetration gap and prevent mine mud, sharp gravel and floating mineral dust from invading the internal hub bearing cavity to protect rolling bearings and differential gear assemblies. The kit includes VMQ steel skeleton integrated main hub oil seals, stainless steel alloy tension garter springs and multi-size HNBR static O-rings for rear axle housing split flanges. All spare parts are pre-classified and sealed in independent labeled transparent plastic pouches separated into rotary hub shaft seal group and flange static sealing group, effectively cutting heavy wheel loader maintenance downtime at open-pit mine central repair workshops, large municipal construction aggregate transfer yards and highway infrastructure construction equipment service stations.

Q: What unique multi-material composite sealing performance advantages does this three-component oil seal assembly bring to Komatsu WA500-8 rear wheel hubs compared with low-cost single NBR oil seal kits sold in aftermarket spare parts stores?
A: The rear wheel hub rotary shaft of Komatsu WA8 series heavy wheel loaders operates under long-lasting continuous medium-high speed rotary friction and irregular rough mine road bump impact pressure every construction shift, enduring long-term soaking in high-viscosity heavy-duty transmission gear oil mixed with fine rock dust and tiny metal bearing wear debris, plus year-round outdoor exposure to muddy slurry splashes, winter anti-freeze frost and wind-blown mine grit in all seasonal loading environments. VMQ silicone rubber main sealing lip has far superior high-temperature gear oil aging resistance and long-term rotary fatigue resistance compared with ordinary single NBR oil seals; it will not expand, soften or lose tight shaft clinging force after thousands of heavy-load rotation cycles under long-hour high-temperature gear oil soaking during summer open-pit mine continuous operation. Nickel-plated cold rolled steel outer shell provides stable circular rigid support for the sealing lip, effectively avoiding the oil seal from deforming and slipping out of the mounting groove under huge rear axle drive torque impact, and the uniform nickel plating layer completely avoids rust corrosion caused by mud splashes and trace leaked gear oil. High-tensile stainless steel alloy garter spring continuously tightens the sealing lip to closely fit the shaft surface, automatically compensating tiny lip abrasion generated by long-time continuous rotation and significantly extending the service cycle of the sealing lip. HNBR flange static O-rings maintain stable soft elasticity under low-temperature freezing mountain mine construction environments, eliminating hidden slow oil seepage leakage at the rear axle housing split flange surface. This layered multi-material matched protection system extends the overall service cycle of this rear wheel hub oil seal kit by more than 88% compared with traditional low-cost single-material NBR oil seal kits.

Q: How can field professional wheel loader maintenance technicians rapidly distinguish each different sealing component through exclusive color and structural shape characteristic differences inside this 07011-00120 rear wheel hub oil seal kit?
A: Integrated VMQ steel skeleton main hub oil seals are light tan circular integral parts, wrapped with obvious silvery nickel-plated metal steel skeleton on the outer ring, adopting an asymmetrical single-lip internal layout: the inner lip is high-pressure gear oil dynamic sealing lip, a circular stainless steel alloy tension garter spring is pre-installed on the inner circumference, and the middle hollow cavity stores pre-filled anti-wear lithium-based lubricating grease. Independent stainless steel alloy tension garter springs are bright silver thin circular coil springs, which can be clearly distinguished from the large integrated steel skeleton oil seal with rubber inner surface through shape and volume difference. Multi-size HNBR static flange O-rings are matte black elastic circular rings with multiple inner diameter specifications to match different circular sealing grooves of rear drive axle housing flanges. Every single component is printed with laser engraved dimension identification marks matching Komatsu WA500-8 rear wheel hub shaft parameters, greatly accelerating rapid sorting and accurate matching during on-site wheel loader rear wheel hub disassembly overhaul work.

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