Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of bulldozer transmission system seals in China, also supports customized service. Please feel free to buy high quality bulldozer transmission system seals for sale here from our factory.
Bulldozer transmission system seals: Efficient sealing solutions for long-term operation
Product Overview: Sealing solutions designed specifically for bulldozer drive systems
Bulldozer transmission system seals mainly include floating oil seals (double cone seals), O-rings, and hydraulic cylinder seals, which are specially used in key parts such as final drives, travel motors, and gearboxes. Its core features include:
Leakage prevention: To ensure the internal lubrication environment, prevent the leakage of lubricating oil and block the intrusion of external sediment, moisture, and other pollutants.
Wear-resistant and pressure-resistant: The combination of high-hardness steel (such as GCr15/100Cr6, hardness HRC58-62) and oil-resistant rubber (NBR60, fluoroelastomer, etc.) can withstand the working condition of 0.3MPa pressure and linear speed of 3m/s.
Long-life design: The life of high-quality floating seals can reach 5000-8000 hours, far exceeding industry standards and reducing the frequency of equipment maintenance.
Core technology and advantages
Innovation in materials science
Metal ring: Forged GCr15 steel or cast 15Cr3Mo alloy, surface roughness ≤ Ra0.2μm to ensure high-precision lamination of the sealing surface.
Rubber ring: NBR60 (temperature resistance -40 °C ~ 120 °C), fluorine rubber (temperature resistance -30 °C ~ 250 °C), and other materials are available to meet the needs of different environments, with tensile strength ≥ 11MPa and elongation at break ≥ 260%18.
Patented dustproof structure
The latest technology, such as the dust shell + sealant gasket design (such as Liugong's patented CN222864065U), prevents the intrusion of corrosive impurities through multiple layers of protection and significantly extends the service life of the oil seal.
Customized service
Support OEM foundry, can laser print customer-specified part numbers, suitable for Caterpillar, Komatsu, Hitachi, and other mainstream brand models (such as D85ESS-1, PC200, E320, etc.).
The size covers the inner diameter of 38mm to 1000mm, to meet the needs of all kinds of bulldozer transmission components.
Adapt the application scenario to the model
Bulldozer transmission system seals are widely used in the following scenarios:
Final drive system: For final drive hubs and sprockets, which need to bear high torque and impact loads, it is recommended to use wide bright belt floating oil seals to improve sealing stability.
Travel motor and hydraulic system: Fluoroelastomer seals are used to adapt to the high-pressure hydraulic oil environment and prevent the efficiency loss caused by leakage.
Examples of compatible models:
Caterpillar: Model 1M8746, 9W7220 (Final Drive Seal).
Komatsu: D85ESS-1, PC200 series floating seals.
Domestic models: Liugong, Shantui, and other final drive dustproof sealing components.
| Velocity | Temperature range | Pressure |
|
≤10m/s |
-40℃ to 250℃ | ≤0.3MPa |
Selection & Maintenance Guide
Key parameters for selection
Working condition matching: select materials according to linear speed (≤10m/s), temperature range (-40°C~250°C), and pressure (≤0.3MPa).
Dimensional accuracy: Measure the size of the metal groove instead of the old part, avoiding errors caused by wear.
Key points of installation and maintenance
Lubrication management: Use a compatible lubricant (e.g., ISO VG220 gear oil) to cover 2/3 of the sealing surface to avoid rubber aging.
Regular inspection: Observe the wear of the contact belt, and replace it immediately if the width of the belt is less than 50% of the original design.
Why choose our seals?
Quality assurance: ISO certification, 100% quality inspection of each process, 18-month warranty period, worry-free after-sales.
Fast delivery: Standing GCr15 steel and NBR rubber in stock, can be shipped within 3 days, and support small batch trial orders.
Global service experience: products are exported to Europe, America, Southeast Asia, and other places, adapting to 200+ construction machinery brands, and providing technical selection support.
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