What Is the PSI of a Regulation NBA Basketball? A regulation NBA basketball must contain between 7 1/2 and 8 1/2 pounds of pressure per square inch, or PSI. The ball also must exhibit an official NBA approval mark. At the beginning of an NBA game, each team must have access to six balls during the warm-up period.
A regulation basketball used in NBA play is inflated to an air pressure between 7.5 and 8.5 pounds of pressure per square inch. Many balls are inflated to the average pressure of 8 pounds. Regulating a basketball's air pressure ensures fair playing conditions throughout a league. A ball's internal air pressure determines the height of its bounce.
To begin with, the NBA basketball is produced by Spalding, and the official size for men’s tournaments has to be 29.5 inches in circumference. With a weight of 22 oz., the ball can be inflated with a pressure range of 7.5 to 8.5 psi. These balls are made up of orange leather having black lettering, and are of size 7.
Annual Dues are $75 which includes Rule Book. Online Tests: Log into your PSI Arbiter account. Click on Central Hub. Click on Testing and Select 2019-20 NFHS Part 1 Basketball Test. When completed return to review answers. Mechanics Test 3-man and 2-man are open as of 10/2/2019.
Size: Radius: Weight: PSI: Used By: Size 7: 29.5″ 22 oz: 7.5 to 8.5: This is the official size for the NBA and men’s college and high school basketball leagues.
So far the official information states that a NBA basketball should always be inflated to a maximum pressure of 7.5 to 8.5 PSI. The WNBA follows the same rules. The NCAA inflation requirements are handled differently since they are by given weight.
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They are pumped to 13 (12.5 to 13.5) PSI in the NFL while a basketball in the NBA is 8.5 PSI. PSI is pounds per square inch. i believe they were looking for the difficulty levels of the two sports...