{"id":9307,"date":"2026-01-17T02:42:13","date_gmt":"2026-01-17T02:42:13","guid":{"rendered":"https:\/\/yenhung.com\/?p=9307"},"modified":"2026-01-17T02:42:13","modified_gmt":"2026-01-17T02:42:13","slug":"nlgi-000-0-1-2-3-la-gi-cach-chon-cap-do-mo-boi-tron-cho-dung-ky-thuat","status":"publish","type":"post","link":"https:\/\/yenhung.com\/?p=9307","title":{"rendered":"NLGI 000 \u2013 0 \u2013 1 \u2013 2 \u2013 3 l\u00e0 g\u00ec? C\u00e1ch ch\u1ecdn c\u1ea5p \u0111\u1ed9 m\u1ee1 b\u00f4i tr\u01a1n cho \u0111\u00fang k\u1ef9 thu\u1eadt"},"content":{"rendered":"\n

Trong l\u0129nh v\u1ef1c b\u00f4i tr\u01a1n c\u00f4ng nghi\u1ec7p v\u00e0 \u00f4 t\u00f4, ngo\u00e0i \u0111\u1ed9 nh\u1edbt c\u1ee7a d\u1ea7u, m\u1ee1 b\u00f4i tr\u01a1n c\u00f2n \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo \u0111\u1ed9 \u0111\u1eb7c \u2013 m\u1ec1m<\/strong>, trong \u0111\u00f3 ti\u00eau chu\u1ea9n NLGI<\/strong> l\u00e0 th\u01b0\u1edbc \u0111o quan tr\u1ecdng nh\u1ea5t. Tuy nhi\u00ean, r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi v\u1eabn nh\u1ea7m l\u1eabn gi\u1eefa NLGI v\u00e0 \u0111\u1ed9 nh\u1edbt d\u1ea7u, d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u1ecdn sai m\u1ee1, g\u00e2y r\u00f2 r\u1ec9, k\u00e9m b\u00f4i tr\u01a1n ho\u1eb7c h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 NLGI 000 \u2013 0 \u2013 1 \u2013 2 \u2013 3 l\u00e0 g\u00ec v\u00e0 c\u00e1ch ch\u1ecdn sao cho \u0111\u00fang<\/strong>.<\/p>\n\n\n\n

NLGI l\u00e0 g\u00ec?<\/h3>\n\n\n\n

NLGI (National Lubricating Grease Institute)<\/strong> l\u00e0 t\u1ed5 ch\u1ee9c \u0111\u01b0a ra ti\u00eau chu\u1ea9n ph\u00e2n lo\u1ea1i m\u1ee1 b\u00f4i tr\u01a1n d\u1ef1a tr\u00ean \u0111\u1ed9 xuy\u00ean kim (worked penetration)<\/strong>. Hi\u1ec3u \u0111\u01a1n gi\u1ea3n, NLGI cho bi\u1ebft m\u1ee1 \u0111\u1eb7c hay m\u1ec1m<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i hay \u0111\u1ed9 nh\u1edbt d\u1ea7u g\u1ed1c. Ch\u1ec9 s\u1ed1 NLGI c\u00e0ng nh\u1ecf th\u00ec m\u1ee1 c\u00e0ng m\u1ec1m, c\u00e0ng l\u1edbn th\u00ec m\u1ee1 c\u00e0ng \u0111\u1eb7c.<\/p>\n\n\n\n

Ti\u00eau chu\u1ea9n NLGI \u0111\u01b0\u1ee3c chia t\u1eeb 000 \u0111\u1ebfn 6, nh\u01b0ng trong th\u1ef1c t\u1ebf s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 NLGI 000 \u2013 0 \u2013 1 \u2013 2 \u2013 3<\/strong>.<\/p>\n\n\n\n

\u00dd ngh\u0129a t\u1eebng c\u1ea5p NLGI 000 \u2013 0 \u2013 1 \u2013 2 \u2013 3<\/h3>\n\n\n\n

NLGI 000<\/strong> l\u00e0 m\u1ee1 si\u00eau m\u1ec1m, g\u1ea7n nh\u01b0 d\u1ea1ng d\u1ea7u \u0111\u1eb7c, c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 ch\u1ea3y. Lo\u1ea1i n\u00e0y th\u01b0\u1eddng d\u00f9ng cho h\u1ed9p s\u1ed1 k\u00edn, h\u1ed9p gi\u1ea3m t\u1ed1c nh\u1ecf, h\u1ec7 th\u1ed1ng b\u00f4i tr\u01a1n trung t\u00e2m ho\u1eb7c nh\u1eefng n\u01a1i kh\u00f4ng th\u1ec3 d\u00f9ng d\u1ea7u l\u1ecfng do nguy c\u01a1 r\u00f2 r\u1ec9. NLGI 000 gi\u00fap m\u1ee1 d\u1ec5 ph\u00e2n b\u1ed1 \u0111\u1ec1u trong c\u00e1c c\u01a1 c\u1ea5u k\u00edn.<\/p>\n\n\n\n

NLGI 0<\/strong> l\u00e0 m\u1ee1 r\u1ea5t m\u1ec1m, v\u1eabn c\u00f3 t\u00ednh ch\u1ea3y nh\u1eb9. Ph\u00f9 h\u1ee3p cho h\u1ed9p s\u1ed1 b\u00e1nh r\u0103ng h\u1edf, h\u1ed9p s\u1ed1 c\u00f4ng nghi\u1ec7p t\u1ea3i nh\u1eb9, h\u1ec7 th\u1ed1ng b\u00f4i tr\u01a1n t\u1ef1 \u0111\u1ed9ng v\u00e0 c\u00e1c v\u1ecb tr\u00ed c\u1ea7n m\u1ee1 lan t\u1ecfa nhanh.<\/p>\n\n\n\n

NLGI 1<\/strong> l\u00e0 m\u1ee1 m\u1ec1m v\u1eeba, d\u1ec5 b\u01a1m, d\u1ec5 ph\u00e2n b\u1ed1. Th\u01b0\u1eddng d\u00f9ng cho v\u00f2ng bi t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n nh\u1ecf, b\u01a1m m\u1ee1 t\u1eadp trung trong m\u00f4i tr\u01b0\u1eddng l\u1ea1nh ho\u1eb7c khi y\u00eau c\u1ea7u ma s\u00e1t th\u1ea5p.<\/p>\n\n\n\n

NLGI 2<\/strong> l\u00e0 c\u1ea5p m\u1ee1 ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. \u0110\u00e2y l\u00e0 lo\u1ea1i m\u1ee1 \u0111a d\u1ee5ng, c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa \u0111\u1ed9 b\u00e1m d\u00ednh v\u00e0 kh\u1ea3 n\u0103ng l\u01b0u th\u00f4ng. NLGI 2 \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i cho v\u00f2ng bi, b\u1ea1c \u0111\u1ea1n, kh\u1edbp n\u1ed1i, g\u1ea7m xe, m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p, xe t\u1ea3i, xe n\u00e2ng v\u00e0 thi\u1ebft b\u1ecb x\u00e2y d\u1ef1ng.<\/p>\n\n\n\n

NLGI 3<\/strong> l\u00e0 m\u1ee1 kh\u00e1 \u0111\u1eb7c, kh\u1ea3 n\u0103ng b\u00e1m d\u00ednh cao, \u00edt b\u1ecb ch\u1ea3y khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng. Ph\u00f9 h\u1ee3p cho \u1ed5 tr\u1ee5c t\u1ea3i n\u1eb7ng, m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, rung \u0111\u1ed9ng m\u1ea1nh ho\u1eb7c n\u01a1i c\u1ea7n m\u1ee1 b\u00e1m l\u00e2u, \u00edt b\u1ea3o d\u01b0\u1ee1ng.<\/p>\n\n\n\n

C\u00e1ch ch\u1ecdn NLGI cho \u0111\u00fang k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n

Khi ch\u1ecdn m\u1ee1 b\u00f4i tr\u01a1n, kh\u00f4ng n\u00ean ch\u1ec9 nh\u00ecn v\u00e0o th\u01b0\u01a1ng hi\u1ec7u hay gi\u00e1 th\u00e0nh m\u00e0 c\u1ea7n d\u1ef1a v\u00e0o \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf<\/strong>. M\u1ed9t s\u1ed1 nguy\u00ean t\u1eafc quan tr\u1ecdng:<\/p>\n\n\n\n

    \n
  • H\u1ed9p s\u1ed1 k\u00edn, b\u00f4i tr\u01a1n t\u1ef1 \u0111\u1ed9ng, kh\u00f4ng d\u00f9ng \u0111\u01b0\u1ee3c d\u1ea7u \u2192 \u01b0u ti\u00ean NLGI 000 ho\u1eb7c 0<\/li>\n\n\n\n
  • V\u00f2ng bi t\u1ed1c \u0111\u1ed9 cao, b\u01a1m m\u1ee1 trung t\u00e2m, m\u00f4i tr\u01b0\u1eddng l\u1ea1nh \u2192 ch\u1ecdn NLGI 1<\/li>\n\n\n\n
  • V\u00f2ng bi th\u00f4ng d\u1ee5ng, g\u1ea7m xe, m\u00e1y c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn \u2192 NLGI 2 l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n<\/li>\n\n\n\n
  • T\u1ea3i n\u1eb7ng, rung m\u1ea1nh, nhi\u1ec7t \u0111\u1ed9 cao, \u00edt b\u1ea3o d\u01b0\u1ee1ng \u2192 NLGI 3 ph\u00f9 h\u1ee3p h\u01a1n<\/li>\n<\/ul>\n\n\n\n

    Ngo\u00e0i ra, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng NLGI kh\u00f4ng thay th\u1ebf cho \u0111\u1ed9 nh\u1edbt d\u1ea7u g\u1ed1c<\/strong>. Hai lo\u1ea1i m\u1ee1 c\u00f9ng NLGI 2 nh\u01b0ng d\u1ea7u g\u1ed1c ISO VG kh\u00e1c nhau v\u1eabn cho hi\u1ec7u qu\u1ea3 b\u00f4i tr\u01a1n r\u1ea5t kh\u00e1c. V\u00ec v\u1eady, khi ch\u1ecdn m\u1ee1 c\u1ea7n xem \u0111\u1ed3ng th\u1eddi NLGI, \u0111\u1ed9 nh\u1edbt d\u1ea7u g\u1ed1c, ph\u1ee5 gia EP, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/strong>.<\/p>\n\n\n\n

    Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p khi ch\u1ecdn NLGI<\/h3>\n\n\n\n

    M\u1ed9t sai l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 cho r\u1eb1ng m\u1ee1 c\u00e0ng \u0111\u1eb7c c\u00e0ng t\u1ed1t. Th\u1ef1c t\u1ebf, m\u1ee1 qu\u00e1 \u0111\u1eb7c c\u00f3 th\u1ec3 g\u00e2y n\u00f3ng \u1ed5 tr\u1ee5c, thi\u1ebfu b\u00f4i tr\u01a1n v\u00e0 ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng<\/strong>. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ee1 qu\u00e1 m\u1ec1m d\u1ec5 ch\u1ea3y, g\u00e2y r\u00f2 r\u1ec9 v\u00e0 m\u1ea5t m\u1ee1 nhanh. Do \u0111\u00f3, ch\u1ecdn \u0111\u00fang NLGI theo khuy\u1ebfn c\u00e1o c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb lu\u00f4n l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u.<\/p>\n\n\n\n

    K\u1ebft lu\u1eadn<\/h3>\n\n\n\n

    NLGI 000 \u2013 0 \u2013 1 \u2013 2 \u2013 3<\/strong> l\u00e0 thang \u0111o \u0111\u1ed9 \u0111\u1eb7c m\u1ec1m c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 b\u00f4i tr\u01a1n v\u00e0 tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb. Hi\u1ec3u \u0111\u00fang v\u00e0 ch\u1ecdn \u0111\u00fang NLGI kh\u00f4ng ch\u1ec9 gi\u00fap m\u00e1y m\u00f3c v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh m\u00e0 c\u00f2n gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec v\u00e0 r\u1ee7i ro h\u01b0 h\u1ecfng. Khi ch\u01b0a ch\u1eafc ch\u1eafn, h\u00e3y ki\u1ec3m tra t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt ho\u1eb7c trao \u0111\u1ed5i v\u1edbi \u0111\u01a1n v\u1ecb cung c\u1ea5p m\u1ee1 b\u00f4i tr\u01a1n chuy\u00ean nghi\u1ec7p \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n ch\u00ednh x\u00e1c.<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"

    Trong l\u0129nh v\u1ef1c b\u00f4i tr\u01a1n c\u00f4ng nghi\u1ec7p v\u00e0 \u00f4 t\u00f4, ngo\u00e0i \u0111\u1ed9 nh\u1edbt c\u1ee7a d\u1ea7u, m\u1ee1 b\u00f4i tr\u01a1n c\u00f2n \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo \u0111\u1ed9 \u0111\u1eb7c \u2013 m\u1ec1m, trong \u0111\u00f3 ti\u00eau chu\u1ea9n NLGI l\u00e0 th\u01b0\u1edbc \u0111o quan tr\u1ecdng nh\u1ea5t. Tuy nhi\u00ean, r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi v\u1eabn nh\u1ea7m l\u1eabn gi\u1eefa NLGI v\u00e0 \u0111\u1ed9 nh\u1edbt d\u1ea7u, d\u1eabn \u0111\u1ebfn vi\u1ec7c […]\n","protected":false},"author":5,"featured_media":9308,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/posts\/9307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/yenhung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9307"}],"version-history":[{"count":1,"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/posts\/9307\/revisions"}],"predecessor-version":[{"id":9309,"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/posts\/9307\/revisions\/9309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yenhung.com\/index.php?rest_route=\/wp\/v2\/media\/9308"}],"wp:attachment":[{"href":"https:\/\/yenhung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yenhung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yenhung.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}