ball bearing - définition. Qu'est-ce que ball bearing
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Qu'est-ce (qui) est ball bearing - définition

TYPE OF ROLLING-ELEMENT BEARING THAT USES BALLS TO MAINTAIN THE SEPARATION BETWEEN THE BEARING RACES.THE PURPOSE OF A BALL BEARING IS TO REDUCE ROTATIONAL FRICTION AND SUPPORT RADIAL AND AXIAL LOADS
Ball bearings; Miniature ball bearing; Flange Ball Bearing; Ceramic ball bearing; Self-aligning ball bearing; Ball-bearing; Ball bering; Ballrace; Ball bearing applications; Ball Bearing; Ball-race-bearing
  • Wingqvist]] developed a self-aligning ball bearing.

ball bearing         
¦ noun a bearing in which the parts are separated by a ring of small metal balls which reduce friction.
?a ball used in such a bearing.
ball bearing         
also ball-bearing (ball bearings)
Ball bearings are small metal balls placed between the moving parts of a machine to make the parts move smoothly.
N-COUNT
ball-bearing         

Wikipédia

Ball bearing

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.

Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.

Exemples du corpus de texte pour ball bearing
1. One of the group’s recent addition as is a ball–bearing plant in Romania.
2. It is thought they were carrying imitation firearms or a ball–bearing guns.
3. Ministers are particularly worried about BB or ball–bearing guns that fire plastic pellets.
4. A police officer who was shot in the leg with a ball–bearing.
5. A police officer was shot in the leg with a ball–bearing gun.