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2. Caster - Wikipedia

   en.wikipedia.org/wiki/Caster

   However, the larger the diameter of a caster wheel, the higher the caster support arm must be. Either the base of a low-hanging object must be lifted higher above the wheels, or the casters must hang out to the sides straddling the low-hanging supported object. While rotating around the vertical shaft, swivel caster wheels sweep out a space.

3. Ball transfer unit - Wikipedia

   en.wikipedia.org/wiki/Ball_transfer_unit

   However, casters recognise a trail, meaning that the wheels had to align before directional change could be achieved. Ball transfer units can also be used in a non-inverted ball down position as a type of caster, however this use is restricted by load-bearing limitations and the type of floor.

4. Roller coaster wheel assembly - Wikipedia

   en.wikipedia.org/wiki/Roller_coaster_wheel_assembly

   Side friction wheels keep the train centered in the track, avoiding derailment. The final set of wheels in the assembly are known as running wheels, road wheels, or tractor wheels. Running wheels are typically the largest set of wheels in the assembly, and roll on the top of the rails. These wheels bear the weight of the train.

5. Man allegedly called 911 a total of 17 times and demanded a ...

   www.aol.com/news/man-allegedly-called-911-total...

   This guy gave new meaning to the slogan “Gottahava Wawa.” Police in East Windsor, N.J., arrested a 24-year-old man on Dec. 23, and charged him with misusing the town’s 911 system for ...

6. Caster angle - Wikipedia

   en.wikipedia.org/wiki/Caster_angle

   Caster angle and trail both influence the steering, albeit in different ways: caster tends to add damping, while trail adds "feel" and returnability. The caster wheel on shopping carts are an extreme case – the system is undamped but stable, as the wheel oscillates around the "correct" path. The construction has relatively high trail, but no ...

7. US judge says Southwest must face bias claims over free ...

   www.aol.com/news/us-judge-says-southwest-must...

   A U.S. judge on Friday said Southwest Airlines must face a lawsuit by a prominent affirmative action opponent claiming a now-defunct program that awarded free flights to Hispanic college students ...