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84.82 - º¼º£¾î¸µ(ball bearing)À̳ª ·Ñ·¯º£¾î¸µ(roller bearing)

ÀÌ È£¿¡´Â º¼(ball)¡¤·Ñ·¯(roller)¡¤´Ïµé ·Ñ·¯(needle roller)ÇüÀÇ ¸ðµç º£¾î¸µÀÌ Æ÷ÇÔÇÑ´Ù. ÀÌ·¯ÇÑ °ÍÀº ¸Å²ô·¯¿î ¸éÀ» °¡Áø ¸ÞÅ»º£¾î¸µ(smooth metal bearing)ÀÇ ´ë½Å¿¡ »ç¿ëÇÏ´Â °ÍÀ¸·Î¼­ ¸¶ÂûÀ» »ó´çÈ÷ °¨¼Ò½Ãų ¼ö ÀÖ´Â °ÍÀÌ´Ù. ÀϹÝÀûÀ¸·Î º£¾î¸µÇÏ¿ì¡(bearing housing)°ú ÃàÀ̳ª Â÷ÃàÀÇ »çÀÌ¿¡ ºÎÂøµÇ¾î¼­ ¹Ý°æ ¹æÇâÀÇ ÁöÁö¸¦ Çϰųª[·¹À̵ð¾ó º£¾î¸µ(radial bearing)] Ãà ¹æÇâÀÇ Ã߷¿¡ ¹öƼµµ·Ï[¾²·¯½ºÆ®º£¾î¸µ(thrust bearing)] ¼³°èÇÏ¿´´Ù. ¾î¶² º£¾î¸µÀº ¹Ý°æ ¹æÇâ°ú Ãà ¹æÇâÀÇ ¾î´À °ÍÀ̵ç ÁöÁöÇÒ ¼ö ÀÖµµ·Ï ¼³°èÇÏ¿´´Ù.
º¸Åë º£¾î¸µÀº º¼(ball)À̳ª ·Ñ·¯(roller)¸¦ ³ÖÀº µÎ °³ÀÇ µ¿½É ¸µ(·¹À̽º)°ú º¼À̳ª ·Ñ·¯¸¦ Àû´çÇÑ À§Ä¡·Î À¯Áö½ÃÄÑ ±× °£°ÝÀ» ÀÏÁ¤ÇÏ°Ô È®º¸ÇÏ´Â ÄÉÀÌÁö(cage)·Î ±¸¼ºµÇ¾î ÀÖ´Ù.


ÀÌ È£¿¡ ºÐ·ùÇÏ´Â º£¾î¸µ¿¡´Â ´ÙÀ½ÀÇ °ÍÀ» Æ÷ÇÔÇÑ´Ù.

(A) º¼º£¾î¸µ(ball bearing) : º¼(ball)ÀÌ ´Ü¿­(Ó¤æê : single row)À̳ª º¹¿­·Î µÇ¾î ÀÖ´Ù. ÀÌ ±×·ì¿¡´Â ¶ÇÇÑ º£¾î¸µ º¼À» °®Ãá ½½¶óÀÌµå ¸ÞÄ«´ÏÁò(slide mechanism)µµ Æ÷ÇÔÇÑ´Ù. ¿¹¸¦ µé¸é, :

(1) ±¸¸®·Î ¸¸µç ¼Ó ¸µ°ú °­(˼)À¸·Î ¸¸µç ¹Ù±ù ¸µ¿¡´Â 6°³ÀÇ È¨ÀÌ ¼¼·Î·Î Á¤µ·µÇ¾î ÀÖ°í, ±× Ȩ ¼ÓÀº ´Ã¾î¶ß¸° Ÿ¿ø ¸ð¾çÀ¸·Î ¼ÒÇüÀÇ ½ºÆ¿ º¼(steel ball)ÀÌ ³»ÀåµÇ¾î ÀÖ´Ù.

(2) ±¼¸²Á¦ÇÑ(restricted-travel)ÇüÀÇ °Í : °­(˼)À¸·Î ¸¸µç °ÍÀ¸·Î ȨÀÌ ÆÄÁø ¿øÅ롤º¼(ball)ÄÉÀÌÁö¿Í ÇÏ¿ì¡À¸·Î ±¸¼ºµÈ´Ù.

(3) ±¼¸²ÀÚÀ¯(free-travelling)ÇüÀÇ °Í : °­(˼)À¸·Î ¸¸µç °ÍÀ¸·Î ¼¼±×¸ÕÆ®(segment)¡¤º£¾î¸µº¼(ball)ÀÌ ³»ÀåµÈ ÄÉÀ̰̽ú ´Ü¸éÀÌ »ï°¢ÇüÀÇ È¨À» °®´Â °¡À̵巹ÀÏ(guide rail)·Î ±¸¼ºµÈ´Ù.

(B) ·Ñ·¯º£¾î¸µ(roller bearing) : ¿©·¯ °¡Áö ÇüÅÂ(¿øÅ롤¿øÃß¡¤¹è·² ¸ð¾ç µî)ÀÇ ·Ñ·¯°¡ ´Ü¿­(Ó¤æê)À̳ª º¹¿­·Î µÇ¾î ÀÖ´Ù.

(C) ´Ïµé ·Ñ·¯º£¾î¸µ(needle roller bearing) : ÀÌ°ÍÀº ±ÕÀÏÇÑ Á÷°æÀÌ 5§® ÀÌÇÏÀÌ°í ±æÀÌ°¡ ÃÖ¼ÒÇÑ Á÷°æÀÇ 3¹è ÀÌ»óÀÎ ¿øÅëÇüÀÇ ·Ñ·¯¸¦ °®Ãá º£¾î¸µÀ̶ó´Â Á¡¿¡¼­ º¸ÅëÀÇ ·Ñ·¯º£¾î¸µ(roller bearing)°ú´Â ´Ù¸£´Ù. ·Ñ·¯ÀÇ ¾ç ³¡Àº µÕ±Ù °ÍÀÏ ¼öµµ ÀÖ´Ù(ÀÌ ·ù ¼ÒÈ£ ÁÖ Á¦4È£ ÂüÁ¶). ÀÌµé ·Ñ·¯´Â º£¾î¸µÀÇ ¾ç ¸µ »çÀÌ¿¡ ºÎÂøµÇ¾î ÀÖÀ¸¸ç ´ëºÎºÐÀÇ °æ¿ì ÄÉÀÌÁö(cage)´Â »ç¿ëÇÏÁö ¾Ê´Â´Ù.
º£¾î¸µÀº ±×µéÀÌ ¹Þ´Â °í¾Ð ¶§¹®¿¡ ¾î¶² Ư¼ö ¿ëµµÀÇ °ÍÀº ûµ¿¡¤±¸¸®¡¤Çöó½ºÆ½À¸·Î ¸¸µç °Íµµ ÀÖÁö¸¸ º¸ÅëÀº °­(˼)À¸·Î ¸¸µç °Í(ƯÈ÷ Å©·Î¹Å°­)À¸·Î µÇ¾î ÀÖ´Ù.


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ÀÌ È£¿¡´Â º¼º£¾î¸µ(ball bearing)¡¤·Ñ·¯º£¾î¸µ(roller bearing)°ú ´Ïµé ·Ñ·¯º£¾î¸µ(needle roller bearing)ÀÇ ºÎºÐÇ°µµ Æ÷ÇÔÇÑ´Ù. ¿¹:

(1) ¿¬¸¶µÈ °­±¸(polished steel ball)(ÀÌ È£¿¡ ¿­°ÅµÈ º£¾î¸µ¿ëÀÎÁö¿¡ »ó°ü¾ø´Ù) : ÃÖ´ë Á÷°æ°ú ÃÖ¼Ò Á÷°æÀÇ °øĪ(Íëöà) Á÷°æ°úÀÇ Â÷ÀÌ°¡ 1%³ª 0.05§® Áß ÀÛÀº °ÍÀÇ ÀÌÇÏÀÎ °Í; ÀÌ Á¤ÀÇ¿Í ÀÏÄ¡µÇÁö ¾Ê´Â °­±¸(˼Ϲ)´Â Á¦7326È£¿¡ ºÐ·ùÇÑ´Ù(ÀÌ ·ùÀÇ ÁÖ Á¦7È£ ÂüÁ¶).

(2) ±¸¸®¡¤Ã»µ¿¡¤Çöó½ºÆ½ µîÀ¸·Î ¸¸µç º£¾î¸µº¼

(3) ¿©·¯ °¡Áö ÇüÀÇ º£¾î¸µ¿ëÀÇ ´Ïµé(needle)À̳ª ·Ñ·¯(roller)

(4) ¸µ(ring)¡¤ÄÉÀÌÁö(cage)¡¤°íÁ¤½½¸®ºê(fixing sleeve) µî


º¼º£¾î¸µ(ball bearing)¡¤·Ñ·¯º£¾î¸µ(roller bearing)¡¤´Ïµé ·Ñ·¯º£¾î¸µ(needle roller bearing)°ú ÀÏü·Î µÇ¾î ÀÖ´Â ±â°èºÎºÐÇ°Àº Á¦¿ÜÇϸç; À̵éÀº °¢ ÇØ´çµÇ´Â È£¿¡ ºÐ·ùÇÑ´Ù. ¿¹:

(a) º£¾î¸µÇÏ¿ì¡°ú º£¾î¸µºê·¡Å¶(bearing bracket)(Á¦8483È£)

(b) ÀÚÀü°ÅÀÇ Çãºê(hub)(Á¦8714È£)

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