With Outer Cover Thrust Ball Bearing

Thrust ball bearings with cover: double guarantee of axial load bearing and protection
In harsh environments such as dust and water vapor, shrouded thrust ball bearings rely on the integrated design of "loading + protection" to become a key component that takes into account both axial load transmission and contaminant isolation. They are widely used in medium and low-speed equipment that require cleanliness and sealing.
From a structural point of view, it adds a **metal or engineering plastic outer cover** to the traditional thrust ball bearing (shaft ring, seat ring, steel ball-cage assembly). The outer cover is connected to the seat ring or shaft ring through buckles, interference fits, etc., forming a closed or semi-closed space that completely wraps the steel balls and raceways. According to different load-bearing directions, they can be divided into "one-way thrust ball bearings with a cover" and "two-way thrust ball bearings with a cover". The former contains 1 shaft ring + 1 seat ring + 1 set of components + 1 cover, and the latter contains 1 shaft ring + 2 seat rings + 2 sets of components + 1 overall cover. The core still retains the characteristic of "only bearing axial load and not radial load".
In terms of performance, the core advantage of this bearing lies in the combination of **protection and load-bearing**. First, it has a strong ability to isolate pollutants. The outer cover can effectively prevent impurities such as dust, iron filings, and coolant from entering the raceway, preventing wear and stagnation of the steel balls and raceways. It also reduces grease loss and extends the maintenance cycle. For example, in woodworking machinery and textile machinery, it can isolate the impact of sawdust and yarn fibers on the bearings. Second, it ensures axial load stability** and continues the precise positioning ability of thrust ball bearings, which can limit the one-way or two-way axial movement of the shaft and ensure the operation accuracy of the equipment. For example, in a small elevator traction machine, it can stably carry the axial force generated by the weight of the car. Third, it is **convenient to install**, and the outer cover and bearing are designed in an integrated manner, eliminating the need for additional seals and simplifying the equipment structure.Centripetal Bearings,High-Quality Bearings,Industrial Bearings,Explore our premium centripetal and radial ball bearings. Boost your machinery's efficiency today! Shop now for the best deals.