Name: 什麼是油封？|| THORS 油封基礎：旋轉應用課程預告 (What are Rotary Oil Seals? || THORS Oil Seal Fundamentals: Rotary Applications Course Preview)
Uploaded: 2026-02-22T14:57:34.000Z
Duration: 3 min 2 s
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Oil seals are installed in a variety of working mechanical components in many industries.

油封會安裝在許多產業的各種工作機械組件裡。

Such seals are typically composed of rigid metal inserts referred to as shells, portions of flexible rubber, and

這種密封件通常由稱為外殼的剛性金屬嵌件、柔性橡膠部分組成，

Two prominent types are reciprocating seals and rotary seals, also known as radial seals.

兩種主要的類型是往復式密封件和旋轉式密封件，也稱為徑向密封件。

Reciprocating seals are used in applications where parts interact in up and down movement, such as suspension systems and shock absorbers.

往復式密封件用於零件上下移動互動的應用，像是懸吊系統和避震器。

Rotary seals are typically used in applications in which shafts are rotating, such as crankshafts and gearboxes.

旋轉式密封件通常用於軸會旋轉的應用，像是曲軸和變速箱。

This course will focus on oil seals used in rotary applications, which are typically manufactured as single lip or double lip, depending on the requirement.

本課程將聚焦於用於旋轉應用的油封，它們通常會製成單脣或雙脣，取決於需求。

In profile view, the single sealing lip is seen at the bottom.

從剖面圖來看，單密封脣位於底部。

These seals are commonly used in gearboxes and input shafts.

這些密封件常用於變速箱和輸入軸。

Here is an example of a single lip oil seal fixed into a housing and onto a shaft.

這是一個單脣油封固定在殼體上並套在軸上的例子。

In profile view, it is clear that the single sealing lip makes direct contact with the shaft as the shaft rapidly rotates.

從剖面圖可以清楚看到，單密封脣在軸快速旋轉時會直接接觸軸。

In service, a properly functioning seal will keep the oil inside of the housing and keep dust, liquids and other particles out.

在運作時，功能正常的油封會將機油留在殼體內，並防止灰塵、液體和其他微粒進入。

If the lip was damaged, oil will leak between the shaft and the lip and unwanted particles will access the working components inside.

如果密封脣損壞，機油就會從軸和密封脣之間洩漏，汙染物也會進入內部的機械組件。

Double lip oil seals have both a sealing lip and also what is referred to as a dust lip.

雙脣油封同時具有密封脣和所謂的防塵脣。

These seals are commonly used on crankshafts and pinion drive shafts.

這些油封常用於曲軸和傳動軸。

Here is an example of a double lip oil seal fixed into a housing and onto a shaft.

這是一個雙脣油封固定在殼體上並套在軸上的例子。

In profile view, it can be seen that both the sealing lip and dust lip make direct contact with the shaft.

從剖面圖可以看到，密封脣和防塵脣都會直接接觸軸。

While the ceiling lip keeps oil inside the housing, the dust lip prevents unwanted dust, liquids and other particles from entering.

密封脣負責將機油留在殼體內，而防塵脣則能防止灰塵、液體和其他微粒進入。