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The USBC and World Bowling promulgate bowling ball specifications. USBC specifications include physical requirements for weight (≤16 pounds (7.3 kg)), diameter (8.500 inches (21.59 cm)—8.595 inches (21.83 cm)), surface hardness, surface roughness, hole drilling limitations (example: a single balance hole including the thumb hole for "two-handed" bowlers [3]), balance, plug limitations, and ...
Carom balls are 61.5 millimetres (2.42 in) in diameter and weigh the same, between 205–220 grams (7.2–7.8 oz). [2] Internationally standardized pool balls come in sets of 16, including two suits or groups of numbered object balls, seven solids (1–7) and seven stripes (9–15), a black 8 ball and a white cue ball. Standard pool balls are 2 ...
See Bowling ball#Layout and grip and Bowling ball#Effect of coverstock, core and layout on ball motion. Layout is also a term referring to the oil pattern used on a lane surface. League: An organized group of bowling teams that compete against each other according to rules and a schedule. Leagues may be certified by a national governing body.
The ball used in candlepins has a maximum weight of 2 lb 7 oz (1.1 kg), and has a diameter of 4.5 in (11 cm), [1] making it the smallest bowling ball of any North American bowling sport. The nearly identical weight of the ball, when compared to that of just one candlepin 2 lb 8 oz (1.1 kg), [ 1 ] causes balls to deflect when impacting either ...
Their most notable brand name is Columbia 300, which has produced some of the most well-known balls in the sport. Beginning in 1960 in Ephrata, Washington (near the Columbia River), Columbia Industries was the first manufacturer to successfully use polyester resin ("plastic") in bowling balls. Prior to this, nearly all bowling balls were made ...
Track was a company involved in the manufacture and sales of bowling balls and ten-pin bowling related accessories. The company was purchased by Columbia Industries and subsequently transferred to Ebonite International of Hopkinsville, Kentucky when the latter acquired the former in February 2007.