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Three Lip Oil Seal

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Three Lip Oil Seal
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DEDE Three Lip Oil Seals are engineered exclusively for rotary shaft assemblies that demand superior sealing efficiency and robust contamination resistance. Different from traditional double-lip oil seals, our added auxiliary lip forms an independent secondary sealing barrier. This dual-block structure drastically cuts lubricant leakage and significantly prolongs the service lifespan of seals under harsh, heavy-duty working conditions.
Category
TG4 Seal
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Description

DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of three lip oil seal in China. If you're going to buy bulk three lip oil seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.

 

DEDE three-lip oil seal upgrades traditional double-lip seals for heavy-duty dusty & muddy rotary shaft equipment. Equipped with primary lip, auxiliary lip and dust lip, it creates double leakage barriers. The auxiliary lip shares sealing pressure, while dual lubrication chambers keep stable oil film during frequent start-stop. The dust lip blocks dirt and mud to protect the sealing core and extend service life.

 

Features

 

 

 

Unique triple-lip integrated structure: primary sealing lip, auxiliary lip & dust lip three-in-one

01

 

Auxiliary lip disperses sealing pressure, delivers double anti-leakage safeguard, reduces wear on main lip

02

 

Double lubrication chambers retain steady oil film even with frequent machine start & stop cycles, lowering friction loss

03

 

Independent dust lip fully isolates mud, sand, dust and grit to prevent abrasion of the core sealing zone

04

 

Versatile adaptability for dusty, muddy, high-load outdoor & industrial working scenarios

05

 

Material Options

 

 

Material Grade

Full Name

Application Scenarios

Working Advantages

NBR

Nitrile Butadiene Rubber

General industrial equipment, normal temperature, mineral oil medium

Cost-effective, good wear resistance, stable performance for standard working conditions

FKM

Fluoroelastomer

High-temperature working environment, corrosive chemical fluid, harsh chemical medium

Heat resistant, acid & alkali resistant, anti-corrosion, long service life under extreme chemical conditions

 

Typical Applications

 

 

Our three-lip oil seals fit all rotary shaft equipment requiring stable leak-proof sealing:

  • Industrial gearboxes & reducers
  • Electric motors & servo motors
  • Hydraulic & water pumps
  • Agricultural machinery: tractors, harvesters, farming accessories
  • Construction machinery: excavators, loaders, road rollers
  • Robotic arms & transmission equipment
  • All kinds of heavy-duty rotating mechanical parts

 

Why Choose DEDE

 

 

● 30+ years professional manufacturer specialized in all types of oil seals, mature production technology

● Support full OEM service & customized solutions: custom size, logo, packaging, material formula as your request

● Strict quality inspection system, consistent stable product quality for bulk orders

● Flexible production schedule: small trial order & mass bulk order both acceptable

● Professional after-sales technical team, provide one-stop sealing solution support for global machinery manufacturers & distributors

● Complete product series including TG4 triple lip seals, double lip seals, skeleton oil seals and more

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FAQ

 

 

Q1: What is the difference between Three Lip Oil Seal and double-lip oil seal?

A: The Seal adds an auxiliary sealing structure and independent dust-proof lip, with double anti-leakage and pressure-sharing capacity. It adapts to heavy-duty and harsh working conditions. Double-lip oil seals only provide basic sealing and simple dust prevention, with weak pressure resistance, only suitable for stable and mild operating environments.

Q2: What equipment can Three Lip Oil Seal be used for?

A: The Seal is widely applied in industrial gearboxes, electric motors, pumps, agricultural machinery, construction equipment and various rotary shaft equipment, especially suitable for outdoor heavy-duty machinery with frequent start-stop operation and dusty environments.

Q3: Can Three Lip Oil Seal completely prevent oil leakage?

A: With standard installation and intact shaft surface, the Seal effectively eliminates conventional oil leakage and start-stop micro-leakage problems. It significantly reduces equipment failure risks caused by lubricating oil leakage compared with ordinary oil seals.

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