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2. Race (bearing) - Wikipedia

   en.wikipedia.org/wiki/Race_(bearing)

   Thus, there are opposing forces and sliding motions at each ball/race contact. Overall, these cause bearing drag. "V" groove raceways distribute the load evenly over the balls as they travel on four points of contact, creating a straight line rolling effect and decreasing the amount of friction created by a full contact round groove design.

3. Rolling-element bearing - Wikipedia

   en.wikipedia.org/wiki/Rolling-element_bearing

   A sealed deep groove ball bearing. In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, [1] is a bearing which carries a load by placing rolling elements (such as balls, cylinders, or cones) between two concentric, grooved rings called races.

4. Ball (bearing) - Wikipedia

   en.wikipedia.org/wiki/Ball_(bearing)

   Silicon nitride bearing balls, in diameters ranging from 1 to 20mm. Bearing balls are special highly spherical and smooth balls, most commonly used in ball bearings, but also used as components in things like freewheel mechanisms. The balls themselves are commonly referred to as ball bearings. [1] This is an example of a synecdoche.

5. Ball bearing - Wikipedia

   en.wikipedia.org/wiki/Ball_bearing

   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. Common ball bearing designs include angular contact, axial, deep-groove, and preloaded pairs.

6. Wire race bearing - Wikipedia

   en.wikipedia.org/wiki/Wire_race_bearing

   Roller bearings may use just two races, but ball bearings typically use three or four races. Wire race bearings can be large yet lightweight and with small profile and good precision. Wire races have little intrinsic structure and must be adequately supported by the bearing housing. Balls, rollers or even cross rollers are used as rolling elements.

7. Senate Democrats name top leadership positions after losing ...

   www.aol.com/senate-democrats-name-top-leadership...

   Senate Democrats held a closed-door election Tuesday morning to name who would fill their top leadership posts for the next two years, most notably filling the No. 3 position held by a retiring ...