370003A 370-003A Shaft Protection Oil Seal Kit For Wheel Loader Transmission And Axle Assembly Repair

1. Quick Details of  seal 370003A:

2. 370003A picture:

3. Service part number :

4. FAQ

Q: What modified elastomer raw material is adopted for the core rotary oil seals inside this main hydraulic pump overhaul kit?
A: The primary rotary oil seals adopt chinaberry leaf fiber modified HNBR compound. This kit is equipped with FKM static sealing rings and PA66 backup rings to fit all dynamic and static sealing grooves of the main hydraulic pump assembly.

Q: What colors can we see on these oil seal components?
A: Rubber sealing sections are black, and metal shells show matte silver gray surface.

Q: What main working positions are these oil seals designed for?
A: They are mainly used for transmission and drive axle rotating shaft sealing positions.

Q: How is its performance when contacting gear oil and lubricating grease?
A: The rubber material has good tolerance to gear oil and general lubricating grease.

Q: Can these oil seals resist dust and sand from outside working environment?
A: Integrated dust‑proof structure blocks external grit to avoid premature wear of inner lip.

Q: Are all oil seals processed according to standard shaft and housing dimensions?
A: Each oil seal is precision manufactured to match standard shaft diameter and housing bore size.

Q: Will the sealing lip lose sealing performance after long‑time continuous rotation?
A: Special anti‑aging additive slows lip hardening under long‑term rotating working status.

Q: Can this kit solve lubricant leakage from rotating shaft joint positions?
A: Optimized lip structure provides tight fit to reduce lubricant leakage on shaft assembly.

Q: What typical engineering projects require this main hydraulic pump seal kit for regular maintenance?
A: It supports routine overhaul of main hydraulic pump sealing assemblies on medium excavators, widely applied in open pit mining, river dredging, urban foundation construction and highway expansion projects.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals on the spare parts market?
A: The added plant fiber filler greatly improves compression recovery and anti-fatigue property. Under long-cycle continuous rotation working conditions, its service life reaches more than 3.46 times that of conventional nitrile oil seals.

5. Exhibition and Wearhous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More