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2. Thrust bearing - Wikipedia

   en.wikipedia.org/wiki/Thrust_bearing

   Thrust ball bearings, composed of bearing balls supported in a ring, can be used in low-thrust applications where there is little axial load. Cylindrical roller thrust bearings consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very good carrying capacity and are cheap, but tend to ...

3. Wheel bearing - Wikipedia

   en.wikipedia.org/wiki/Wheel_bearing

   Wheel bearing may refer to: Ball bearing; Bearing (mechanical) Fluid bearing; Jewel bearing; Journal bearing; Needle roller bearing; Plain bearing; Rolling-element ...

4. Stave bearing - Wikipedia

   en.wikipedia.org/wiki/Stave_bearing

   A stave bearing is a simple journal bearing where a shaft rotates in a bearing housing. Rather than the usual arrangement where the fixed part of the bearing surrounds most of the circumference of the shaft in one or two pieces, a stave bearing uses a large number of axial staves to support the shaft. A large housing is made with grooves ...

5. Fifth-wheel coupling - Wikipedia

   en.wikipedia.org/wiki/Fifth-wheel_coupling

   A wheel would be placed on the rear frame section of the truck, which at the time had only four wheels, making the additional wheel the "fifth wheel". The trailer needed to be raised so that the trailer's pin would be able to drop into the central hole of the fifth wheel. Fifth wheels were originally not a complete circle and were hand forged.

6. Constant bearing, decreasing range - Wikipedia

   en.wikipedia.org/wiki/Constant_bearing...

   Constant bearing, decreasing range (CBDR) is a term in navigation which means that some object, usually another ship viewed from the deck or bridge of one's own ship, is getting closer but maintaining the same absolute bearing. If this continues, the objects will collide.