For tennis ball pressure vessel, summarizes that were examined in various ways.



This page is a reminder of me, but please look if you are interested



●Playback of tennis balls had deflated (for recycling)

　 Takes considerably longer, but it is possible.

　 Way is as simple and save them for over a usually reasonable pressure.
　 About three months in a ball that had deflated completely.
　 About one month in the ball had deflated to a little

　In this way, play it (recycle) the ball spent, I'm using.
　You can ensure (80 min ball tennis ball),
　1 basket about if you have about 20 the coercive vessel.

　Sphere since the number requires more practice and beginners junior tennis in particular,
　 you can very helpful when you want to ensure is the number of balls.


●About the type of container that is used for tennis ball holding vessel

　 Transparent container is good for the following reasons.
　①You can see the contents
　②You can see that the pressure is applied with the feeling that you have.　

　　By the way recommended, is the container of the ball below.

　『即日出荷』【2013秋冬新製品】【新パッケージ】DUNLOP(ダンロップ)【St.JAMES(セントジェー...

ダンロップ：セントジェームス
価格：480円（税込、送料別）






●For the pressure of the tennis ball holding vessel

　　Pressure in the tennis ball is 0.08MPa.
　So, it is a good idea over 0.08MPa if close to new.

　However, because it is also affected
　by the elasticity of the rubber ball for use frequency is high,
　bouncing ball is may have been under pressure to 0.12MPa about.

　Note: If you put pressure too strong, the ball will collapse. 　　　Please see the following videos if you are interested.
　　　　　*** 1 crushed the ball: Video(youtube) ***
　　　　　*** 2 crushed the ball: Video(youtube) ***





●Weight and diameter of the tennis ball is how much?
　diameter：6.54～6.86cm
　Weight：56.0～59.4g



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