{"id":876,"date":"2026-09-10T03:59:42","date_gmt":"2026-09-10T03:59:42","guid":{"rendered":"https:\/\/nm-coupling.net\/technical-guides\/selection-guide\/"},"modified":"2026-09-10T06:13:59","modified_gmt":"2026-09-10T06:13:59","slug":"selection-guide","status":"publish","type":"page","link":"https:\/\/nm-coupling.net\/vi\/technical-guides\/selection-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i NM"},"content":{"rendered":"

Vi\u1ec7c l\u1ef1a ch\u1ecdn NM d\u1ec5 d\u00e0ng nh\u1ea5t khi b\u1ea1n ph\u00e2n bi\u1ec7t gi\u1eefa nh\u1eefng g\u00ec b\u1ea3ng c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi v\u00e0 nh\u1eefng g\u00ec b\u00e1o gi\u00e1 ph\u1ea3i tr\u1ea3 l\u1eddi. B\u1ea3ng c\u00f3 th\u1ec3 l\u1ecdc m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c, t\u1ed1c \u0111\u1ed9, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 v\u00e0 ph\u1ea1m vi bao ph\u1ee7. N\u00f3 kh\u00f4ng th\u1ec3 cho b\u1ea1n bi\u1ebft dung sai m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i chung, v\u1eadt li\u1ec7u moay\u01a1 cu\u1ed1i c\u00f9ng, r\u00e3nh then ho\u00e0n thi\u1ec7n ho\u1eb7c \u0111\u1ed9 c\u1ee9ng c\u1ee7a ch\u1ea5t \u0111\u00e0n h\u1ed3i cho m\u1ecdi d\u1ef1 \u00e1n.<\/p>\n

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X\u00e1c \u0111\u1ecbnh ngh\u0129a v\u1ee5<\/h3>\n

S\u1eed d\u1ee5ng m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf n\u1ebfu c\u00f3. N\u1ebfu ch\u1ec9 c\u00f3 c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1 v\u00e0 t\u1ed1c \u0111\u1ed9 quay, h\u00e3y ghi c\u1ea3 hai v\u00e0 m\u00f4 t\u1ea3 qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng, \u0111\u1ea3o chi\u1ec1u v\u00e0 va \u0111\u1eadp.<\/p>\n<\/div>\n

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M\u00f4-men xo\u1eafn v\u00e0 t\u1ed1c \u0111\u1ed9 m\u00e0n h\u00ecnh<\/h3>\n

T\u00ecm c\u00e1c m\u1eabu NM c\u00f3 m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c v\u00e0 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 bao ph\u1ee7 \u0111i\u1ec3m v\u1eadn h\u00e0nh.<\/p>\n<\/div>\n

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Ki\u1ec3m tra c\u00e1c tr\u1ee5c<\/h3>\n

C\u1ea3 hai \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 khoan c\u1ea7n thi\u1ebft ph\u1ea3i n\u1eb1m trong gi\u1edbi h\u1ea1n d max. Sau \u0111\u00f3, so s\u00e1nh D, D1, L v\u00e0 S v\u1edbi ph\u1ea1m vi l\u1eafp \u0111\u1eb7t.<\/p>\n<\/div>\n

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X\u00e1c nh\u1eadn ph\u1ea1m vi \u0111\u01a1n \u0111\u1eb7t h\u00e0ng<\/h3>\n

Th\u00eam c\u00e1c th\u00f4ng s\u1ed1 v\u1ec1 r\u00e3nh then, s\u1ed1 l\u01b0\u1ee3ng, lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u00e0n h\u1ed3i y\u00eau c\u1ea7u, v\u1eadt li\u1ec7u tr\u1ee5c v\u00e0 \u0111i\u1ec3m \u0111\u1ebfn \u0111\u1ec3 nh\u1eadn b\u00e1o gi\u00e1.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

Kh\u00f4ng n\u00ean nh\u1ea7m l\u1eabn m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c v\u1edbi h\u1ec7 s\u1ed1 qu\u00e1 t\u1ea3i \u01b0\u1edbc t\u00ednh.<\/h2>\n

D\u00f2ng s\u1ea3n ph\u1ea9m NM ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c. M\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u tham kh\u1ea3o NM kh\u00e1c tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f4ng b\u1ed1 c\u00e1c m\u1ee9c \u0111\u1ecbnh m\u1ee9c kh\u00e1c nhau, nh\u01b0ng c\u00e1c gi\u00e1 tr\u1ecb \u0111\u00f3 kh\u00f4ng th\u1ec3 ho\u00e1n \u0111\u1ed5i v\u1edbi d\u00f2ng s\u1ea3n ph\u1ea9m n\u00e0y. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9t ng\u1ed9t ho\u1eb7c gi\u1eadt m\u1ea1nh, h\u00e3y g\u1eedi t\u1ea3i tr\u1ecdng \u0111\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t l\u1ea1i thay v\u00ec \u00e1p d\u1ee5ng h\u1ec7 s\u1ed1 qu\u00e1 t\u1ea3i ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn.<\/p>\n

\u0110\u01b0\u1eddng k\u00ednh l\u1ed7 khoan c\u00f3 th\u1ec3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc sau khi \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u00f4-men xo\u1eafn mong mu\u1ed1n.<\/h2>\n

M\u1ed9t m\u00f4-t\u01a1 nh\u1ecf c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4-men xo\u1eafn v\u1eadn h\u00e0nh nh\u01b0ng v\u1eabn kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u00ec m\u1ed9t tr\u1ee5c v\u01b0\u1ee3t qu\u00e1 \u0111\u01b0\u1eddng k\u00ednh t\u1ed1i \u0111a quy \u0111\u1ecbnh. Ch\u1ec9 n\u00ean n\u00e2ng c\u1ea5p l\u00ean m\u00f4-t\u01a1 l\u1edbn h\u01a1n sau khi ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng r\u1eb1ng m\u00f4-t\u01a1 l\u1edbn h\u01a1n c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 kh\u00f4ng gian tr\u1ee5c c\u00f3 s\u1eb5n. \u0110\u1ed1i v\u1edbi NM194 v\u00e0 NM214, c\u1ea7n nh\u1edb r\u1eb1ng gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c gi\u1ea3m xu\u1ed1ng c\u00f2n 1500 v\u00f2ng\/ph\u00fat.<\/p>\n

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B\u1ea3ng ph\u1ea1m vi<\/span><\/p>\n

H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t b\u1ea3ng cho m\u00e0n h\u00ecnh \u0111\u1ea7u ti\u00ean.<\/h2>\n<\/div>\n

Tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng, h\u00e3y k\u00e9o theo chi\u1ec1u ngang \u0111\u1ec3 gi\u1eef cho t\u1ea5t c\u1ea3 c\u00e1c c\u1ed9t hi\u1ec3n th\u1ecb m\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t \u0111i ng\u1eef c\u1ea3nh chi\u1ec1u.<\/p>\n<\/div>\n

Ng\u01b0\u1eddi m\u1eabu<\/th>M\u00f4men xo\u1eafn \u0111\u1ecbnh m\u1ee9c<\/th>gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9<\/th>D<\/th>D1<\/th>d t\u1ed1i \u0111a<\/th>L<\/th>S<\/th>Xuy\u00ean t\u00e2m<\/th>G\u00f3c<\/th><\/tr><\/thead>
NM50<\/a><\/strong><\/td>5 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>50 mm<\/span><\/td>33 mm<\/span><\/td>19 mm<\/span><\/td>25 mm<\/span><\/td>2 +\/- 0.5 mm<\/span><\/td>0.03 mm<\/span><\/td>3.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM67<\/a><\/strong><\/td>13 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>67 mm<\/span><\/td>46 mm<\/span><\/td>28 mm<\/span><\/td>30 mm<\/span><\/td>2.5 +\/- 0.5 mm<\/span><\/td>0.03 mm<\/span><\/td>3.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM82<\/a><\/strong><\/td>28 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>82 mm<\/span><\/td>53 mm<\/span><\/td>32 mm<\/span><\/td>40 mm<\/span><\/td>3.0 +\/- 1.0 mm<\/span><\/td>0.05 mm<\/span><\/td>3.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM97<\/a><\/strong><\/td>45 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>97 mm<\/span><\/td>69 mm<\/span><\/td>42 mm<\/span><\/td>50 mm<\/span><\/td>3.0 +\/- 1.0 mm<\/span><\/td>0.05 mm<\/span><\/td>2.5 \u0111\u1ed9<\/span><\/td><\/tr>
NM112<\/a><\/strong><\/td>70 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>112 mm<\/span><\/td>79 mm<\/span><\/td>48 mm<\/span><\/td>60 mm<\/span><\/td>3.5 +\/- 1.0 mm<\/span><\/td>0.07 mm<\/span><\/td>2.5 \u0111\u1ed9<\/span><\/td><\/tr>
NM128<\/a><\/strong><\/td>140 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>128 mm<\/span><\/td>90 mm<\/span><\/td>55 mm<\/span><\/td>70 mm<\/span><\/td>3.5 +\/- 1.0 mm<\/span><\/td>0.07 mm<\/span><\/td>2.5 \u0111\u1ed9<\/span><\/td><\/tr>
NM148<\/a><\/strong><\/td>280 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>148 mm<\/span><\/td>107 mm<\/span><\/td>65 mm<\/span><\/td>80 mm<\/span><\/td>3.5 +\/- 1.0 mm<\/span><\/td>0.07 mm<\/span><\/td>2.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM168<\/a><\/strong><\/td>500 Nm<\/span><\/td>3000 v\u00f2ng\/ph\u00fat<\/span><\/td>168 mm<\/span><\/td>124 mm<\/span><\/td>75 mm<\/span><\/td>90 mm<\/span><\/td>3.5 +\/- 1.5 mm<\/span><\/td>0.10 mm<\/span><\/td>2.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM194<\/a><\/strong><\/td>840 Nm<\/span><\/td>1500 v\u00f2ng\/ph\u00fat<\/span><\/td>194 mm<\/span><\/td>140 mm<\/span><\/td>85 mm<\/span><\/td>100 mm<\/span><\/td>3.5 +\/- 1.5 mm<\/span><\/td>0.10 mm<\/span><\/td>2.0 \u0111\u1ed9<\/span><\/td><\/tr>
NM214<\/a><\/strong><\/td>1000 Nm<\/span><\/td>1500 v\u00f2ng\/ph\u00fat<\/span><\/td>214 mm<\/span><\/td>157 mm<\/span><\/td>95 mm<\/span><\/td>110 mm<\/span><\/td>4.0 +\/- 2.0 mm<\/span><\/td>0.10 mm<\/span><\/td>2.0 \u0111\u1ed9<\/span><\/td><\/tr><\/tbody><\/table><\/div>

C\u00e1c gi\u00e1 tr\u1ecb D, D1, d max, L, S v\u00e0 b\u00e1n k\u00ednh \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng milim\u00e9t. \u0110\u1ed9 d\u1ecbch chuy\u1ec3n g\u00f3c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng \u0111\u1ed9. Tr\u00ean m\u00e0n h\u00ecnh nh\u1ecf h\u01a1n, h\u00e3y k\u00e9o b\u1ea3ng theo chi\u1ec1u ngang \u0111\u1ec3 xem t\u1ea5t c\u1ea3 c\u00e1c c\u1ed9t.<\/p><\/section>\n

Nh\u1eefng n\u1ed9i dung c\u1ea7n \u0111\u01b0a v\u00e0o y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ)<\/h2>\n

N\u1ebfu ch\u1ecdn model NM, h\u00e3y ghi r\u00f5 t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh, m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf ho\u1eb7c c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1, \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c d\u1eabn \u0111\u1ed9ng v\u00e0 tr\u1ee5c b\u1ecb d\u1eabn \u0111\u1ed9ng, c\u1ea3 hai r\u00e3nh then, s\u1ed1 l\u01b0\u1ee3ng v\u00e0 \u0111i\u1ec3m \u0111\u1ebfn. Th\u00eam s\u1ed1 l\u1ea7n kh\u1edfi \u0111\u1ed9ng m\u1ed7i gi\u1edd, s\u1ed1 l\u1ea7n \u0111\u1ea3o chi\u1ec1u, \u0111\u1ed9 rung, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 b\u1ea5t k\u1ef3 y\u00eau c\u1ea7u v\u1eadt li\u1ec7u n\u00e0o n\u1ebfu c\u1ea7n thi\u1ebft. N\u1ebfu \u1ee9ng d\u1ee5ng l\u00e0 thay th\u1ebf, h\u00e3y bao g\u1ed3m model c\u0169 v\u00e0 k\u00edch th\u01b0\u1edbc \u0111o \u0111\u01b0\u1ee3c, nh\u01b0ng h\u00e3y coi ch\u00fang nh\u01b0 c\u00f4ng c\u1ee5 nh\u1eadn d\u1ea1ng ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 d\u1eef li\u1ec7u thay th\u1ebf cho d\u1eef li\u1ec7u tr\u1ee5c.<\/p>\n

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B\u1ea1n mu\u1ed1n c\u00f3 ng\u01b0\u1eddi kh\u00e1c ki\u1ec3m tra k\u00edch th\u01b0\u1edbc kh\u00f4ng?<\/h2>\n

H\u00e3y g\u1eedi th\u00f4ng s\u1ed1 nhi\u1ec7m v\u1ee5 v\u00e0 tr\u1ee5c. Ch\u00fang t\u00f4i s\u1ebd ki\u1ec3m tra m\u00e0n h\u00ecnh m\u00f4 h\u00ecnh tr\u01b0\u1edbc khi c\u1ed1 \u0111\u1ecbnh h\u00ecnh \u1ea3nh l\u1ed7 khoan\/r\u00e3nh then.<\/p>\n<\/div>\n

Xem l\u1ea1i l\u1ef1a ch\u1ecdn c\u1ee7a t\u00f4i<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Ch\u1ecdn NM50-NM214 d\u1ef1a tr\u00ean m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c, t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 tr\u01b0\u1edbc, sau \u0111\u00f3 x\u00e1c nh\u1eadn c\u00e1c y\u00eau c\u1ea7u v\u1ec1 t\u1ea3i tr\u1ecdng, r\u00e3nh then, k\u00edch th\u01b0\u1edbc v\u1ecf v\u00e0 ch\u1ea5t \u0111\u00e0n h\u1ed3i.<\/p>","protected":false},"author":1,"featured_media":0,"parent":860,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-876","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/pages\/876","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/comments?post=876"}],"version-history":[{"count":2,"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/pages\/876\/revisions"}],"predecessor-version":[{"id":953,"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/pages\/876\/revisions\/953"}],"up":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/pages\/860"}],"wp:attachment":[{"href":"https:\/\/nm-coupling.net\/vi\/wp-json\/wp\/v2\/media?parent=876"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}