Roller Pen Vs. Ball Pen?

Answer Many people are particular about the type of pen they use to write with. Whether the pen is a roller pen or a ballpoint pen determines how the ink looks on the page. While ballpoint pens have been ... Read More »

Top Q&A For: Roller Pen Vs. Ball Pen

How to Tell Whether a Ball or Roller Bearing Is Bad?

Ball and roller bearing help shafts and other parts rotate in vehicle components, motors and other equipment or machinery. They prevent direct contact between moving and non-moving components for e... Read More »

Are Roller Bearings Better Than Ball Bearings?

On One Hand: Roller bearingsAccording to, there are several types of roller bearings, including cylindrical, self-aligning, track, tapered and needle. Each type is better suited ... Read More »

How to Build a Cool Roller Coaster on Roller Coaster Tycoon?

Do you want an insane roller coaster on Roller Coaster Tycoon? Read this article!

Which would be better a 427 sbc roller or 427 bbc roller motor?