9912 Rear Axle Shaft Overhaul Oil Seal Repair Kit for Backhoe Loader
1. Quick Details of seal 9912:
| Part NO. | 9912 |
| Machine | Backhoe Loader |
| Size | OEM |
| Material | Polyurethane‑nitrile blended rubber with galvanized carbon steel shell |
| Oil seal type | SEAL LIP |
2. 9912 picture:
3. Service part number :
| PART NO. | PART NO. | Part NO. |
| 254287 | 471354 | 480028 |
| 471750 | 90036 | 473016 |
| 370087 | 8660S | 370021 |
| 472843 | 254270 | 254287 |
| 471255 | 370018A | 417484 |
| 415187 | 471224 | 473214 |
4. FAQ
Q: Can this oil seal work steadily on rotating shaft assemblies?
A: Yes, the specially designed sealing lip fits rotary shafts to block internal lubricant leakage.
Q: What color features do the sealing assemblies inside the kit show?
A: Rubber sealing lips are matte black, and outer steel shell presents special amber‑brown anti‑corrosion coated surface.
Q: What color do these sealing components display?
A: Rubber sealing elements are matte dark‑black, the outer metal shell shows bright silver surface finished by galvanized anti‑rust treatment.
Q: Which key mechanical assembly does this seal kit match?
A: It fits rear axle shaft assembly, preventing lubricant leakage at rotating rear‑axle shaft joint of backhoe loader.
Q: Can these sealing assemblies bear frequent off‑road driving and heavy digging‑loading cycles?
A: Yes, it copes with recurring impact load and twisting vibration during site moving, excavating and material dumping work.
Q: Does this kit contain all sealing accessories for one rear axle shaft full overhaul?
A: Yes, it includes matched oil seals, constant‑tension garter springs and anti‑extrusion backup rings for single‑axle repair service.
Q: What working temperature range can these sealing parts keep reliable sealing performance?
A: Stable sealing performance ranges from ‑32℃ up to 133℃ under variable outdoor construction‑site surroundings.
Q: What field working situations will speed up seal wear and aging?
A: Long‑time travelling on unpaved site roads, degraded gear lubricant and continuous mechanical vibration will shorten seal service life.
Q: Is this oil seal kit suitable for wheel hubs of multiple motor grader variants?
A: It is designed for dedicated shaft and bore dimensions, please verify dimension data before you confirm purchase orders.
Q: Can this oil seal kit fit torque converter assemblies of multiple wheel loader series?
A: It is manufactured for fixed shaft and bore dimensions, please confirm dimension specifications before placing purchase orders.
Q: What abnormal conditions indicate oil seals should be replaced?
A: Lubricant leaks out from conveyor drive shaft end, conveyor runs unevenly, periodic scraping noise occurs and drive housing produces obvious over‑heat during paving work.
Q: What risk will scratch damage bring to electrophoretic coated shell?
A: Once the coating layer is scratched off, bare steel will corrode gradually, which may lead to seal loosening and unexpected oil leakage.
Q: How well can this full sealing kit block mud, gravel dust and hot gear oil mist on muddy outdoor road job sites?
A: The multi-layer flexible rubber lip scrapes thick mud off the shaft surface, the fully enclosed plated metal shell blocks coarse dust particles, and inner auxiliary rubber layers isolate high-temperature oil mist to protect internal precision gears.
5. Exhibition and Wearhous
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