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ball bearing |
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ball bearing: see bearing bearing, machine part designed to reduce friction between moving parts or to support moving loads. There are two main kinds of bearings: the antifriction type, such as the roller bearing and the ball bearing, operating on the principle of rolling friction; and the ..... Click the link for more information. . ball bearingOne of the two types of rolling, or antifriction, bearings (the other is the roller bearing). Its function is to connect two machine members that move relative to one another so that the frictional resistance to motion is minimal. In many applications, one of the members is a rotating shaft and the other a fixed housing. Each ball bearing has three main parts: two grooved, ringlike races and a number of balls. The balls fill the space between the two races and roll with negligible friction in the grooves. The balls may be loosely restrained and separated by means of a retainer or cage. |
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``You see the ball bearing right in on you, but you have nowhere to go,'' he said. The RX rotary joint is a ball bearing joint designed for water, oil and steam service on internal mixers, calenders and extruders. The RXS-800 has four abrasion-protected ball bearing spindles equally spaced around the perimeter of its 36 in. |
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ball bearing
