µo«H¤H: fiveways (½ÖÀ´±oªY½à)    ¬ÝªO: Aero
¤é´Á: Mon Mar 22 03:26:29 1999
¼ÐÃD: Re: ¦³ÃöBEARING?

==> KSY (¦ãº¸ºû´µ) ªº¤å³¹¤¤´£¨ì:
>==> fiveways (½ÖÀ´±oªY½à) ªº¤å³¹¤¤´£¨ì:
>>==> KSY (¦ãº¸ºû´µ) ªº¤å³¹¤¤´£¨ì:
>>>½Ð°Ýa/c¤WªºBALL BEARING»PROLLER BEARING¦³¤°»ò¤£¦Pªº¥\¥Î©O?
>>©M¤@¯ë¾÷±ñ¤Wªº³]­p¬O¤@¼Ëªº§r,ball bearing ¥i¥H©Ó¨ü©M­Ó¤è¦V¨Óªº¤O¶q
>>¦Óroller bearing«h¥u¯à©Ó¨ü««ª½©óºu°Ê­±ªº¤O¶q
>>¦b¤ÞÀº¤¤,³o¨âºØ¶b©Ó³£¦³¨Ï¥Î.
>ÁÂÁ§Aªº¸Ñµª...
>¨º³o¨âºØbearing¬O¤£¬O»Ý­n¯S§Oªº²Õ¦X,¤~¤£·|¨ÏEngin®Ì°Ê©O?
¤ÞÀº¤¤ªº¥D­n±ÛÂà¥ó¬OÀ£ÁY¾÷©M´õ½ü¾÷,¥¦­Ì¦P®É»Ý­n³o¨âºØ¶b©Óªº²Õ¦X
¦b¨ü¤OªººØÃþùØ,««ª½©óÂà¶bªº¤O¶qºÙ¤§¬°®|¦V¤O(radial force),¥D­n¨Ó¦V©ó¤ÞÀºÂà³t
§ïÅܪº®É­Ô©M­¸¾÷¾Þ§@®Éªº¤O¶q,³o­Ó®|¦Vªº¤O¶q´N¥Ñroller bearing¨Ó©Ó¨ü
¥t¤@ºØ¤O¬O´N¬O¥­¦æ©óÂà¶bªº¶b¦V¤O(thrust load / axial load),¨Ó¦Û¤ÞÀº²£¥Íªº±À¤O,
¥D­n¥Ñball bearing¨Ó©Ó¨ü(¥¦¤]¥i¥H©Ó¨ü³¡¥÷ªº®|¦V¤O)
¬Ý¤@¤U³o¬q:

Since there is always engine growth because of temperature changes in the 
engine, one bearing supporting the compressor must always be a ball bearing
to absorb both radial and axial loads,while the other must always be a roller 
bearing to allow axial movement due to changing dimensions in the engine. This
is also true for the turbine rotor in larger engines,...

p340 of " Aircraft gas turbine engine technology"










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* Origin: °ê¥ß¤¤¤s¤j¾Ç Formosa BBS * From: 168.95.84.156 [¥¼³q¹L»{ÃÒ]
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