NSK(日本精工株式會社)成立于1916年，是日本國內第一家設計生產軸承的廠商。幾十年來，NSK開發出無數新型軸承，滿足世界各地用戶的需求，并為產業發展和技術進步做出了極大的貢獻。同時NSK評籍其在精密加工方面的技術優勢，不斷開發汽車零部件、精密機械元件等高、精、尖產品，在電子應用等領域積極開發多元化經營。目前NSK在全球20多個國家和地區建立了銷售網絡，并擁有30多家工廠，行業派名在世界范圍內穩居榜首。NSK的主要產品——軸承，材質精純、產品精度高，品種達數十萬種之多，廣泛應用于不同的環境和機械，素有“機械產業的糧食”之美稱，已有80余年軸承生產經驗的NSK仍不斷改良現有產品、研制和開發新的產品，在技術上始終保持領先優勢。
6801V NSK軸承 6909DU NSK軸承 6913VV NSK軸承 6300ZZ NSK軸承 6904DDU NSK軸承 63/32VV NSK軸承6802V NSK軸承 
6910DU NSK軸承 6914VV NSK軸承 6301ZZ NSK軸承 6903DDU NSK軸承 63/28VV NSK軸承6803V NSK軸承 6911DU NSK軸承 
6915VV NSK軸承 6302ZZ NSK軸承 6320DDU NSK軸承 6232ZZS NSK軸承6804V NSK軸承

51100,51101,51102,51103,51104,51105,51106,51107,51108,51109,51110,51111,51112,51113,51114,51115,51116,51117,51118,
51120,51122,51124,51126,51128 X,51130 X,51132 X,51134 X,51136 X,51138 X

51200,51201,51202,51203,51204,51205,51206,51207,51208,51209,51210,51211,51212,51213,51214,51215,51216,51217,51218,
51220,51222,51224,51226 X,51228 X,51230 X,,51232 X,51234 X,51236,51236 M,51236 XM,51244 M,51244..

51304,51305,51306,51307,51308,51309,51310,51311,51312,51313,51314,51315,51316,51317,51318,51320,51322,51324,51326,
51327,51330,51332,51334,52340,

51405,51406,51407,51408,51409,51410,51411,51412,51413,51414,51415,51416,51417,51418,51420,

52202..,52203..,52204..,52205..,52206..,52207..,52208..,52209..,52210..,52211..,52212..,52213..,52214..,52215..,
52216..,52217..,52218..,52219..,52220..,

52308..,52309..,52310..,52311..,52312..,52313..,52314..,52315..,52316..,52317..,52318..,52319..,52320..,