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.

What is RG and diff in bowling?

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 is a high diff in bowling?

RG-differential indicates the bowling ball's track flare potential. Therefore, the higher the differential, the more the ball will flare. The more flare on a bowling ball, the more the bowling ball cover touches the lane surface. With more of the surface touching the lane, the earlier the ball wants to hook.

What does RG mean on bowling balls?

Low RG vs.

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. Low RG bowling balls rev up earlier on the lane than high RG bowling balls.

What does low RNG mean in bowling?

Low RG numbers indicate that the balls mass is distributed more towards the center (center heavy) which promotes an earlier roll through the front part of the lane. Medium RG describes sufficient bowling ball skid length to reach the mid-lane before transitioning into the hook phase of overall motion.

23 related questions found

What does length mean in bowling?

Generally, length describes the relative distance a bowling ball gets before it starts to hook in the mid-lane. Because of factors based on the core design of any given bowling ball, one ball will have a longer skid distance rating than another.

What is flare in bowling?

Flare: To expand or open outward in shape.

At that point it simply rolls end over end. The easiest way to visualize this is when you throw the ball. The rings of oil draw the flare for you. Every time the balls has one complete roll it will shift to another axis, creating a new oil ring.

What is the RG value of a bowling ball?

The RG value of a bowling ball is defined by the USBC as the measurement of the distance of where the ball's total mass is concentrated from its axis of rotation without any changes to its moment of inertia.

What is rev rate in bowling?

Rev rate is a calculation of the amount of revolutions a bowler imparts on a ball. Now, with these basics, we can determine how to calculate a bowler's revolutions in a common unit, Revolutions Per Minute (RPM). RPM is a frequency of rotation: the number of full rotations completed in one minute around a fixed axis.

What is hook rating for bowling balls?

The Perfect Scale® ranges from 1 to 300. Plastic bowling balls with very low hook potential, rate a 5. The highest number achieved on the scale to date is 237.7. As you can see, we've left room for improvement on our scale in anticipation of new technologies that will add additional hook potential.

Where is Bowlerx located?

You may also email us at [email protected] and we will respond to you in a timely manner. Our Pro Shop location located at Town & Country Lanes in Bethlehem PA is open from 5pm to 8pm Tuesday through Thursday and Noon to 3pm on Saturdays.

What bowling ball should I use?

Find your ideal ball weight.

Some say your ball should be approximately 10 percent of your body weight, up to the maximum 16 pounds. Most pro bowlers use 16-pound balls, although more than you think use 15-pounders. Another method is to add one or two pounds to the weight of the house ball you normally use.

What are the numbers on bowling balls?

Bowling balls have a RG (Radius of Gyration) converted to a scale of 1-10. RG numbers range from 2.460 to 2.800, but some companies have converted them to a 1-10 scale to help give the consumer a better frame of reference. Mass distribution numbers describe the distribution of mass in the bowling ball.

What is axis rotation in bowling?

Axis rotation is how much side rotation your bowling ball has while rolling down the lane.

What is the fastest bowling ball ever thrown?

The fastest bowling ball speed (MPH) is recorded at 100.2 miles per hour (161.3 kilometers per hour). The fastest bowling ball record is held by Shoaib Akhtar from Pakistan when he took the fastest recorded shot in 2002. With this record, Shoaib became the first bowler to break the 100 mph barrier.

How do you calculate bowling speed?

You can measure your bowling speed by using a stopwatch to calculate the time required for the ball to reach a batsman and within 22 yards of the pitch. Then, divide the distance by time and convert miles per hour or miles per hour. Alternatively, you can use a speed song.

How do you get more revs in bowling?

In bowling, we can add power (more revs) by adding lag in the forward swing. Adding lag in the forward swing requires a couple of arm and hand action moves so you get into position to uncoil your wrist as your thumb exits the bowling ball producing an increase in your rev-rate.

What does polishing bowling ball do?

Polishing is used to reduce the friction on the surface of a ball. There are many types of polishes available on the market. From polishes that clean off grime and belt marks, to polishes that are available in different grit levels for medium oil conditions to dry conditions.

Can you clean a bowling ball with rubbing alcohol?

Clean a bowling ball's porous outer surface with rubbing alcohol to remove dirt, grease and grime contaminants. Wipe the ball down vigorously with an alcohol soaked towel or microfiber cloth as soon as possible after bowling. Do not soak the entire bowling ball in alcohol for any amount of time.

What is the rule of 31 in bowling?

The rule of 31 in bowling is a simple equation that takes the pattern length, subtracts it by the number 31 and leaves you with where the bowling ball should exit the pattern. For example, a house shot that is put out for most leagues is 40 feet long.

What does Kegler mean in bowling?

kegler • \KEG-ler\ • noun. : a person who bowls : bowler. Examples: "Five keglers …

What does backend mean in bowling?

Backend is the ability to convert the ball's revolutions in to a forward move in the final 3rd of the lane, after the ball reached its breakpoint and revolution axis and the ball's path point into the same direction: the pocket.

What does 300 mean on a bowling ball?

In bowling games that use 10 pins, such as ten-pin bowling, candlepin bowling, and duckpin bowling, the highest possible score is 300, achieved by bowling 12 strikes in a row in a traditional single game: one strike in each of the first nine frames, and three more in the tenth frame.

What bowling shot does not curve?

The straight shot is exactly what its name implies except that it is rolled down the alley slightly off center in order to hit the first pin at an advantageous angle. The hook shot consistently beats other shots in producing strikes.

How do you bowl correctly?

First: Straighten your hand and wrist. Second: Hold your bowling arm out at a distance while you're bowling. Third: Keeping your arm straight, swing it towards your ankle. Fourth: Rotate the wrist, hand, and arm away from your body as you bring the ball near your ankle.