What is PSA in bowling?
The preferred spin axis (PSA) on an asymmetrical ball is one of the most misunderstood topics surrounding bowling ball technology in today’s game. A majority of bowlers don’t realize how important it is and how much more the ball reaction can be fine-tuned when drilling an asymmetrical ball.
What is RG and diff?
In short, the RG of a bowling ball is an account of the location of that mass inside the given bowling ball. Differential of RG is the difference between the maximum and minimum Radius of Gyration. RG-differential indicates the bowling ball’s track flare potential.
What are strikes called in bowling?
Strikes & Spares A strike is when you knock down all ten pins at your first attempt in a single frame. Two strikes in a row are called a double, three strikes in a row are called a Turkey, while four and five strikes in a row are called four/five-bagger(s) and so on and so forth.
Why do they call it a Brooklyn strike in bowling?
1. A Brooklyn refers to when the bowling ball hits the pins on the opposite side from which it was thrown. On the opposite side, a left-handed bowler will hit the pins on the right side in the 1-3 pocket. This term originated in New York City and it is a reference to people “crossing over” to Brooklyn from Manhattan.
What is considered a fast bowling ball?
Maximum ball speed is achieved at the point of release. Typically, a ball speed at release of less that 17 mph is considered slow, 17 to 19 mph average, and greater than 19 mph is considered fast. …
What is RG in bowling ball?
High RG. The USBC defines RG (radius of gyration) as: Measured in inches, radius of gyration is the distance from the axis of rotation at which the total mass of a body might be concentrated without changing its moment of inertia. Simply put, RG is when your ball begins to rev up.
What is the MB on a bowling ball?
The Web M.B. (Mass Bias) incorporates an elongated version of the Spheroid Core shape, creating asymmetry and more ball reaction shapes for the Web and Hammer lovers.
What does DIFF mean in bowling?
flare potential
Differential is an indicator of a bowling ball’s track flare potential. Bowling balls with lower differentials are more stable, therefore generating less track flare potential. Bowling balls with higher differentials are unstable, therefore generating a much larger track flare potential.
What is int diff in a bowling ball?
Intermediate differential – The difference in radius of gyration between the Y (high RG) and Z (intermediate RG) axes on the bowling ball. The higher the the intermediate differential the stronger a balls PSA.