Linde - Excavator Oil Seal Rings
Excavator oil seal rings are essential components in the hydraulic systems of excavators, tasked with preventing oil leakage and ensuring proper system operation. These seals are primarily constructed from rubber or plastic, offering elasticity and durability. Their design includes elements like a sealing lip, spring, and skeleton. The sealing lip maintains contact with the shaft to create a secure seal, while the spring ensures tight fitting against the shaft, thereby stabilizing the oil film and preventing leaks. Various types of oil seals exist, including single and double lip, spiral groove, and combined seals, each catering to different operating conditions such as speed and pressure. Proper selection considers factors such as environmental conditions and material performance, while ensuring the components are correctly sized for the shaft. Installation involves careful cleaning, lubrication, and inspection to guarantee optimal sealing. Regular maintenance, including checking for wear and applying clean oil, is crucial for extending the lifecycle of the seals and maintaining continuous excavator functionality.Excavator oil seal rings, as a key component in the hydraulic system of excavators, play a vital role. Its main function is to prevent oil leakage and ensure the normal operation of the hydraulic system when the excavator is working. This article will introduce in detail the structure, working principle, type, selection and installation method, failure analysis and maintenance of excavator oil seal ring, and its application in excavators.
Excavator oil seal rings are usually made of rubber or plastic materials, which have some elasticity and wear resistance. Its structure includes sealing lip, spring, skeleton and other parts. The sealing lip is the part of the oil seal ring that is in contact with the shaft and plays the role of sealing, the spring is used to keep the sealing lip and the shaft tightly fitted, and the skeleton plays the role of support and fixation.
When the excavator is working, a layer of oil film is formed between the sealing lip of the oil seal ring and the shaft, which plays a role in lubrication and sealing. When the shaft rotates, the sealing lip is squeezed, generating a certain rebound force, which keeps the oil film stable and prevents oil leakage. At the same time, the spring of the oil seal ring also plays an auxiliary sealing role to ensure that good sealing performance can be maintained under various working conditions.
Product name : Excavator oil seal rings
Product material : Rubber, polyurethane, PTFE, etc
Hardness (Shore A) : 20 to 90
Applicable temperature °C : -50 to 140
Color : Black, orange, blue, yellow, green, custom
Size : Standard/ Custom
Advantage : High temperature resistance, Abrasion resistance, Corrosion resistance, Elastic performance
Application : Excavator hydraulics
Certification : ISO: 9001, ISO: 14001, IATF: 16949
There are many types of excavator oil seal rings, which can be divided into the following categories according to different applications and performance requirements:
Single lip oil seal ring: suitable for low-speed, low-pressure working environment, simple structure, easy installation.
Double lip oil seal ring: suitable for high-speed, high-pressure working environment, with better sealing performance and wear resistance.
Spiral groove oil seal ring: By setting a spiral groove on the sealing lip, the stability of the oil film is increased and the sealing effect is improved.
Combined oil seal ring: It is composed of multiple parts, which can be combined according to actual needs, and is suitable for complex working environments.