{"id":879,"date":"2026-06-25T01:55:39","date_gmt":"2026-06-25T01:55:39","guid":{"rendered":"https:\/\/oldhamcoupling.net\/oldham-coupling-size-chart-how-to-read-specifications-and-select-by-dimension\/"},"modified":"2026-06-25T01:55:39","modified_gmt":"2026-06-25T01:55:39","slug":"oldham-coupling-size-chart-how-to-read-specifications-and-select-by-dimension","status":"publish","type":"post","link":"https:\/\/oldhamcoupling.net\/vi\/oldham-coupling-size-chart-how-to-read-specifications-and-select-by-dimension\/","title":{"rendered":"B\u1ea3ng k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i Oldham: C\u00e1ch \u0111\u1ecdc th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 l\u1ef1a ch\u1ecdn theo k\u00edch th\u01b0\u1edbc"},"content":{"rendered":"

C\u00e1c catalogue kh\u1edbp n\u1ed1i Oldham tr\u00ecnh b\u00e0y m\u1ed9t ma tr\u1eadn d\u00e0y \u0111\u1eb7c c\u00e1c con s\u1ed1 \u2014 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7, \u0111\u1ecbnh m\u1ee9c m\u00f4-men xo\u1eafn, kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ec7ch tr\u1ee5c, gi\u00e1 tr\u1ecb qu\u00e1n t\u00ednh v\u00e0 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 \u2014 c\u00f3 th\u1ec3 kh\u00f3 hi\u1ec3u n\u1ebfu kh\u00f4ng n\u1eafm r\u00f5 \u00fd ngh\u0129a c\u1ee7a t\u1eebng th\u00f4ng s\u1ed1 v\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c con s\u1ed1. M\u1ed9t kh\u1edbp n\u1ed1i qu\u00e1 nh\u1ecf so v\u1edbi \u1ee9ng d\u1ee5ng s\u1ebd b\u1ecb h\u1ecfng s\u1edbm; m\u1ed9t kh\u1edbp n\u1ed1i qu\u00e1 l\u1edbn s\u1ebd l\u00e0m t\u0103ng qu\u00e1n t\u00ednh v\u00e0 chi ph\u00ed kh\u00f4ng c\u1ea7n thi\u1ebft. \u0110\u1ecdc \u0111\u00fang b\u1ea3ng k\u00edch th\u01b0\u1edbc l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn.<\/p>\n

B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch m\u1ecdi k\u00edch th\u01b0\u1edbc v\u00e0 th\u00f4ng s\u1ed1 c\u00f3 trong b\u1ea3ng k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i ti\u00eau chu\u1ea9n c\u1ee7a Oldham, m\u00f4 t\u1ea3 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa ch\u00fang v\u00e0 h\u01b0\u1edbng d\u1eabn m\u1ed9t v\u00ed d\u1ee5 l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf t\u1eeb \u0111\u1ea7u \u0111\u1ebfn cu\u1ed1i.<\/p>\n

\n \"B\u1ea3ng
B\u1ea3ng k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i Oldham s\u1eafp x\u1ebfp nhi\u1ec1u th\u00f4ng s\u1ed1 ph\u1ee5 thu\u1ed9c l\u1eabn nhau \u2014 vi\u1ec7c hi\u1ec3u r\u00f5 \u0111\u1ecbnh ngh\u0129a c\u1ee7a t\u1eebng th\u00f4ng s\u1ed1 v\u00e0 c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ef1a ch\u1ecdn ch\u00ednh x\u00e1c.<\/figcaption><\/figure>\n

C\u00e1c k\u00edch th\u01b0\u1edbc ch\u00ednh tr\u00ean b\u1ea3n v\u1ebd kh\u1edbp n\u1ed1i Oldham<\/h2>\n

OD \u2014 \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i:<\/strong> \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i t\u1ed1i \u0111a c\u1ee7a c\u1ee5m kh\u1edbp n\u1ed1i, \u0111\u01b0\u1ee3c \u0111o ngang qua th\u00e2n moay\u01a1. \u0110\u00e2y l\u00e0 k\u00edch th\u01b0\u1edbc quy\u1ebft \u0111\u1ecbnh xem kh\u1edbp n\u1ed1i c\u00f3 v\u1eeba kh\u00edt v\u1edbi kh\u00f4ng gian xuy\u00ean t\u00e2m xung quanh tr\u1ee5c hay kh\u00f4ng. Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p l\u1eafp \u0111\u1eb7t ch\u1eadt h\u1eb9p \u2014 b\u00ean trong v\u1ecf m\u00e1y, gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn li\u1ec1n k\u1ec1 ho\u1eb7c g\u1ea7n vai tr\u1ee5c \u2014 h\u00e3y ki\u1ec3m tra xem \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ed9ng v\u1edbi m\u1ed9t bi\u00ean \u0111\u1ed9 khe h\u1edf c\u00f3 v\u1eeba kh\u00edt v\u1edbi kh\u00f4ng gian cho ph\u00e9p tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh l\u1ef1a ch\u1ecdn.<\/p>\n

L \u2014 Chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3:<\/strong> T\u1ed5ng chi\u1ec1u d\u00e0i tr\u1ee5c c\u1ee7a kh\u1edbp n\u1ed1i \u0111\u00e3 l\u1eafp r\u00e1p t\u1eeb m\u1eb7t b\u00edch n\u00e0y \u0111\u1ebfn m\u1eb7t b\u00edch kia, v\u1edbi \u0111\u0129a \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u00fang v\u1ecb tr\u00ed tr\u1ee5c danh ngh\u0129a. K\u00edch th\u01b0\u1edbc n\u00e0y x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch tr\u1ee5c c\u1ea7n thi\u1ebft gi\u1eefa \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ed9ng. \u0110\u1ea3m b\u1ea3o c\u00f3 \u0111\u1ee7 khe h\u1edf cho chi\u1ec1u d\u00e0i kh\u1edbp n\u1ed1i c\u1ed9ng v\u1edbi b\u1ea5t k\u1ef3 \u0111\u1ed9 r\u01a1 n\u00e0o x\u1ea3y ra khi tr\u1ee5c \u0111\u1ed9ng c\u01a1 gi\u00e3n n\u1edf do gi\u00e3n n\u1edf nhi\u1ec7t.<\/p>\n

LH \u2014 Chi\u1ec1u d\u00e0i tr\u1ee5c b\u00e1nh xe:<\/strong> Chi\u1ec1u d\u00e0i tr\u1ee5c c\u1ee7a m\u1ed7i moay\u01a1 quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 moay\u01a1 \u0103n kh\u1edbp v\u1edbi tr\u1ee5c ch\u00ednh. Moay\u01a1 d\u00e0i h\u01a1n cung c\u1ea5p di\u1ec7n t\u00edch k\u1eb9p l\u1edbn h\u01a1n v\u00e0 th\u01b0\u1eddng t\u1ea1o ra m\u00f4-men xo\u1eafn tr\u01b0\u1ee3t cao h\u01a1n \u0111\u1ed1i v\u1edbi c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a moay\u01a1. Chi\u1ec1u d\u00e0i tr\u1ee5c (LH) c\u0169ng x\u00e1c \u0111\u1ecbnh chi\u1ec1u d\u00e0i \u0103n kh\u1edbp t\u1ed1i thi\u1ec3u c\u1ee7a tr\u1ee5c ch\u00ednh \u2014 tr\u1ee5c ch\u00ednh ph\u1ea3i nh\u00f4 ra \u0111\u1ee7 xa v\u00e0o moay\u01a1 \u0111\u1ec3 bu l\u00f4ng moay\u01a1 c\u00f3 th\u1ec3 b\u00e1m ch\u1eafc trong v\u00f9ng k\u1eb9p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf.<\/p>\n

D \u2014 \u0110\u01b0\u1eddng k\u00ednh l\u1ed7 khoan:<\/strong> \u0110\u01b0\u1eddng k\u00ednh trong c\u1ee7a l\u1ed7 moay\u01a1 ph\u1ea3i kh\u1edbp v\u1edbi \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c. H\u1ea7u h\u1ebft c\u00e1c b\u1ea3ng k\u00edch th\u01b0\u1edbc \u0111\u1ec1u li\u1ec7t k\u00ea ph\u1ea1m vi \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 kh\u1ea3 d\u1ee5ng cho m\u1ed7i k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i \u2014 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng v\u00e0o th\u00e2n moay\u01a1 ti\u00eau chu\u1ea9n m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u00e0y th\u00e0nh moay\u01a1 ho\u1eb7c kh\u1ea3 n\u0103ng k\u1eb9p. N\u1ebfu c\u1ea3 hai tr\u1ee5c c\u00f3 c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh, m\u1ed9t k\u00edch th\u01b0\u1edbc l\u1ed7 s\u1ebd \u00e1p d\u1ee5ng cho c\u1ea3 hai moay\u01a1. N\u1ebfu c\u00e1c tr\u1ee5c kh\u00e1c nhau v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh (th\u01b0\u1eddng g\u1eb7p trong c\u00e1c k\u1ebft n\u1ed1i \u0111\u1ed9ng c\u01a1 v\u1edbi v\u00edt me bi), h\u00e3y ch\u1ec9 \u0111\u1ecbnh ri\u00eang \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 d\u1eabn \u0111\u1ed9ng v\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 b\u1ecb d\u1eabn \u0111\u1ed9ng.<\/p>\n

\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i \u0111\u0129a \/ \u0110\u1ed9 d\u00e0y \u0111\u0129a:<\/strong> M\u1ed9t s\u1ed1 b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt bao g\u1ed3m k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111\u0129a trung t\u00e2m m\u1ed9t c\u00e1ch ri\u00eang bi\u1ec7t. \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a \u0111\u0129a quy\u1ebft \u0111\u1ecbnh chi\u1ec1u d\u00e0i r\u00e3nh t\u1ed1i \u0111a trong moay\u01a1 v\u00e0 do \u0111\u00f3 l\u00e0 \u0111\u1ed9 l\u1ec7ch ngang t\u1ed1i \u0111a m\u00e0 kh\u1edbp n\u1ed1i c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c. \u0110\u1ed9 d\u00e0y c\u1ee7a \u0111\u0129a quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 d\u1ecbch chuy\u1ec3n d\u1ecdc tr\u1ee5c gi\u1eefa c\u00e1c m\u1eb7t c\u1ee7a moay\u01a1.<\/p>\n

C\u00e1c th\u00f4ng s\u1ed1 hi\u1ec7u su\u1ea5t trong b\u1ea3ng k\u00edch th\u01b0\u1edbc<\/h2>\n

M\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c (T_N):<\/strong> M\u00f4-men xo\u1eafn li\u00ean t\u1ee5c m\u00e0 kh\u1edbp n\u1ed1i c\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i \u1edf \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed9 l\u1ec7ch v\u00e0 t\u1ed1c \u0111\u1ed9 tham chi\u1ebfu. \u0110\u00e2y l\u00e0 th\u00f4ng s\u1ed1 hi\u1ec7u su\u1ea5t ch\u00ednh v\u00e0 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u cho vi\u1ec7c l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc d\u1ef1a tr\u00ean m\u00f4-men xo\u1eafn. \u200b\u200bQuan tr\u1ecdng: \u0111\u00e2y l\u00e0 \u0111\u1ecbnh m\u1ee9c li\u00ean t\u1ee5c, kh\u00f4ng ph\u1ea3i \u0111\u1ecbnh m\u1ee9c c\u1ef1c \u0111\u1ea1i. Kh\u1ea3 n\u0103ng ch\u1ecbu m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i th\u01b0\u1eddng g\u1ea5p 2 \u0111\u1ebfn 3 l\u1ea7n \u0111\u1ecbnh m\u1ee9c li\u00ean t\u1ee5c \u0111\u1ed1i v\u1edbi t\u1ea3i tr\u1ecdng ng\u1eafn h\u1ea1n.<\/p>\n

\u0110\u1ed9 l\u1ec7ch ngang t\u1ed1i \u0111a (\u0394Kr):<\/strong> \u0110\u1ed9 l\u1ec7ch ngang t\u1ed1i \u0111a cho ph\u00e9p gi\u1eefa hai tr\u1ee5c quay. Nh\u01b0 \u0111\u00e3 th\u1ea3o lu\u1eadn xuy\u00ean su\u1ed1t trang web n\u00e0y, \u0111\u00e2y l\u00e0 gi\u00e1 tr\u1ecb t\u1ed1i \u0111a c\u00f3 th\u1ec3 - \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng l\u00e2u d\u00e0i, h\u00e3y v\u1eadn h\u00e0nh \u1edf m\u1ee9c 50% ho\u1eb7c \u00edt h\u01a1n gi\u00e1 tr\u1ecb n\u00e0y. K\u00fd hi\u1ec7u \u0394Kr xu\u1ea5t hi\u1ec7n trong c\u00e1c danh m\u1ee5c c\u1ee7a ch\u00e2u \u00c2u v\u00e0 tu\u00e2n theo ti\u00eau chu\u1ea9n ISO; c\u00e1c danh m\u1ee5c c\u1ee7a B\u1eafc M\u1ef9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt ng\u1eef nh\u01b0 \"sai l\u1ec7ch song song\" ho\u1eb7c \u0111\u01a1n gi\u1ea3n l\u00e0 \"\u0111\u1ed9 l\u1ec7ch ngang\".<\/p>\n

\u0110\u1ed9 l\u1ec7ch g\u00f3c t\u1ed1i \u0111a (\u0394Kw):<\/strong> \u0110\u1ed9 l\u1ec7ch g\u00f3c t\u1ed1i \u0111a gi\u1eefa t\u00e2m tr\u1ee5c, t\u00ednh b\u1eb1ng \u0111\u1ed9. \u0110\u1ed1i v\u1edbi kh\u1edbp n\u1ed1i Oldham, gi\u00e1 tr\u1ecb n\u00e0y th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 0,5 \u0111\u1ebfn 1,0 \u0111\u1ed9 cho t\u1ea5t c\u1ea3 c\u00e1c k\u00edch c\u1ee1 \u2014 n\u00f3 kh\u00f4ng t\u0103ng \u0111\u00e1ng k\u1ec3 theo k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ec7ch ngang.<\/p>\n

\u0110\u1ed9 d\u1ecbch chuy\u1ec3n tr\u1ee5c t\u1ed1i \u0111a (\u0394Ka):<\/strong> \u0110\u1ed9 d\u1ecbch chuy\u1ec3n d\u1ecdc tr\u1ee5c t\u1ed1i \u0111a m\u00e0 m\u1ed9t tr\u1ee5c c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n so v\u1edbi tr\u1ee5c kia m\u00e0 kh\u00f4ng l\u00e0m cho \u0111\u0129a ti\u1ebfp x\u00fac v\u1edbi m\u1eb7t moay\u01a1. Th\u00f4ng th\u01b0\u1eddng t\u1eeb 0,5 \u0111\u1ebfn 2,0 mm t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i.<\/p>\n

T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a (n_max):<\/strong> T\u1ed1c \u0111\u1ed9 quay t\u1ed1i \u0111a \u1edf \u0111i\u1ec1u ki\u1ec7n l\u1ec7ch tr\u1ee5c tham chi\u1ebfu v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng. Nh\u01b0 \u0111\u00e3 th\u1ea3o lu\u1eadn trong b\u00e0i vi\u1ebft v\u1ec1 t\u1ed1c \u0111\u1ed9, gi\u00e1 tr\u1ecb n\u00e0y gi\u1ea3m khi \u0111\u1ed9 l\u1ec7ch tr\u1ee5c v\u1eadn h\u00e0nh t\u0103ng l\u00ean \u2014 h\u00e3y tham kh\u1ea3o bi\u1ec3u \u0111\u1ed3 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 l\u1ec7ch tr\u1ee5c k\u1ebft h\u1ee3p khi v\u1eadn h\u00e0nh tr\u00ean 50% c\u1ea3 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 l\u1ec7ch tr\u1ee5c \u0111\u1ecbnh m\u1ee9c c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n

M\u00f4men qu\u00e1n t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng (J):<\/strong> M\u00f4men qu\u00e1n t\u00ednh quay c\u1ee7a to\u00e0n b\u1ed9 c\u1ee5m kh\u1edbp n\u1ed1i (c\u1ea3 moay\u01a1 v\u00e0 \u0111\u0129a), t\u00ednh b\u1eb1ng g\u00b7cm\u00b2 ho\u1eb7c kg\u00b7m\u00b2. Gi\u00e1 tr\u1ecb n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o t\u00ednh to\u00e1n t\u1ed5ng m\u00f4men qu\u00e1n t\u00ednh ph\u1ea3n x\u1ea1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc b\u1ed9 truy\u1ec1n \u0111\u1ed9ng servo. Gi\u00e1 tr\u1ecb trong catalogue l\u00e0 d\u00e0nh cho v\u1eadt li\u1ec7u moay\u01a1 v\u00e0 \u0111\u0129a ti\u00eau chu\u1ea9n \u1edf \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 danh ngh\u0129a \u2014 m\u00f4men qu\u00e1n t\u00ednh th\u1ef1c t\u1ebf thay \u0111\u1ed5i m\u1ed9t ch\u00fat t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc l\u1ed7 (vi\u1ec7c lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u moay\u01a1 l\u00e0m gi\u1ea3m m\u00f4men qu\u00e1n t\u00ednh) v\u00e0 v\u1eadt li\u1ec7u moay\u01a1 (nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9).<\/p>\n

\u0110\u1ed9 c\u1ee9ng xo\u1eafn (C_T):<\/strong> \u0110\u1ed9 c\u1ee9ng g\u00f3c c\u1ee7a kh\u1edbp n\u1ed1i d\u01b0\u1edbi t\u1ea3i tr\u1ecdng xo\u1eafn, t\u00ednh b\u1eb1ng N\u00b7m\/\u0111\u1ed9 ho\u1eb7c N\u00b7m\/rad. \u0110\u1ed9 c\u1ee9ng xo\u1eafn c\u00e0ng cao th\u00ec \u0111\u1ed9 l\u1ec7ch g\u00f3c tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb m\u00f4-men xo\u1eafn c\u00e0ng nh\u1ecf. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng servo, \u0111\u1ed9 c\u1ee9ng xo\u1eafn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng \u2014 \u0111\u1ed9 c\u1ee9ng c\u00e0ng cao th\u00ec t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u00e0ng cao, cho ph\u00e9p b\u0103ng th\u00f4ng servo c\u00e0ng l\u1edbn.<\/p>\n

\n \"Th\u00f4ng
B\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a kh\u1edbp n\u1ed1i Oldham li\u1ec7t k\u00ea c\u00e1c th\u00f4ng s\u1ed1 c\u01a1 kh\u00ed, k\u00edch th\u01b0\u1edbc v\u00e0 hi\u1ec7u su\u1ea5t \u2014 vi\u1ec7c \u0111\u1ecdc t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 n\u00e0y, kh\u00f4ng ch\u1ec9 m\u00f4-men xo\u1eafn v\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7, s\u1ebd gi\u00fap l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c trong su\u1ed1t v\u00f2ng \u0111\u1eddi s\u1eed d\u1ee5ng.<\/figcaption><\/figure>\n

B\u1ea3ng k\u00edch th\u01b0\u1edbc ti\u00eau bi\u1ec3u<\/h2>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i (mm)<\/th>\nChi\u1ec1u d\u00e0i L (mm)<\/th>\n\u0110\u01b0\u1eddng k\u00ednh l\u1ed7 khoan (mm)<\/th>\nM\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c (N\u00b7m)<\/th>\n\u0110\u1ed9 l\u1ec7ch t\u1ed1i \u0111a (mm)<\/th>\nT\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a (v\u00f2ng\/ph\u00fat)<\/th>\nQu\u00e1n t\u00ednh (g\u00b7cm\u00b2)<\/th>\n<\/tr>\n<\/thead>\n
16<\/td>\n28<\/td>\n3\u20136<\/td>\n0.5<\/td>\n0.20<\/td>\n8,000<\/td>\n0.12<\/td>\n<\/tr>\n
20<\/td>\n34<\/td>\n4\u20138<\/td>\n1.5<\/td>\n0.30<\/td>\n7,000<\/td>\n0.35<\/td>\n<\/tr>\n
25<\/td>\n40<\/td>\n5\u201312<\/td>\n3.0<\/td>\n0.40<\/td>\n6,000<\/td>\n0.85<\/td>\n<\/tr>\n
32<\/td>\n52<\/td>\n6\u201316<\/td>\n7.0<\/td>\n0.50<\/td>\n5,000<\/td>\n2.8<\/td>\n<\/tr>\n
40<\/td>\n62<\/td>\n8\u201320<\/td>\n15.0<\/td>\n0.70<\/td>\n4,000<\/td>\n8.5<\/td>\n<\/tr>\n
50<\/td>\n76<\/td>\n10\u201325<\/td>\n30.0<\/td>\n0.90<\/td>\n3,500<\/td>\n22.0<\/td>\n<\/tr>\n
63<\/td>\n95<\/td>\n14\u201332<\/td>\n60.0<\/td>\n1.20<\/td>\n2,800<\/td>\n68.0<\/td>\n<\/tr>\n
80<\/td>\n118<\/td>\n18\u201340<\/td>\n120.0<\/td>\n1.50<\/td>\n2,200<\/td>\n195.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

C\u00e1c gi\u00e1 tr\u1ecb hi\u1ec3n th\u1ecb l\u00e0 \u0111\u1ea1i di\u1ec7n cho c\u00e1c kh\u1edbp n\u1ed1i Oldham ti\u00eau chu\u1ea9n c\u00f3 tr\u1ee5c b\u1eb1ng nh\u00f4m v\u00e0 \u0111\u0129a b\u1eb1ng acetal, v\u1edbi \u0111\u1ed9 l\u1ec7ch ngang 0,2 mm v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng 25\u00b0C. Lu\u00f4n lu\u00f4n ki\u1ec3m tra l\u1ea1i v\u1edbi b\u1ea3ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee5 th\u1ec3 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed1i v\u1edbi kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c ch\u1ecdn.<\/em><\/p>\n

V\u00ed d\u1ee5 v\u1ec1 l\u1ef1a ch\u1ecdn \u0111\u00e3 th\u1ef1c hi\u1ec7n<\/h2>\n

\u1ee8ng d\u1ee5ng:<\/strong> \u0110\u1ed9ng c\u01a1 servo d\u1eabn \u0111\u1ed9ng tr\u1ee5c v\u00edt me bi tr\u00ean m\u00e1y phay CNC. M\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c c\u1ee7a \u0111\u1ed9ng c\u01a1 l\u00e0 4,0 N\u00b7m, m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i l\u00e0 12,0 N\u00b7m. \u0110\u01b0\u1eddng k\u00ednh tr\u1ee5c \u0111\u1ed9ng c\u01a1 10 mm, \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c v\u00edt me bi 12 mm. T\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng 2.500 v\u00f2ng\/ph\u00fat. \u0110\u1ed9 l\u1ec7ch ngang \u0111o \u0111\u01b0\u1ee3c l\u00e0 0,25 mm. \u0110\u1ed9 l\u1ec7ch g\u00f3c \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh xu\u1ed1ng d\u01b0\u1edbi 0,3 \u0111\u1ed9. M\u00f4i tr\u01b0\u1eddng trong nh\u00e0 ti\u00eau chu\u1ea9n, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh 25\u00b0C.<\/p>\n

B\u01b0\u1edbc 1 \u2014 M\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf:<\/strong> M\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i 12,0 N\u00b7m \u00d7 h\u1ec7 s\u1ed1 v\u1eadn h\u00e0nh 2,0 (servo c\u00f3 \u0111\u1ea3o chi\u1ec1u) = m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf 24,0 N\u00b7m.<\/p>\n

B\u01b0\u1edbc 2 \u2014 K\u00edch th\u01b0\u1edbc l\u1ed7 khoan:<\/strong> C\u1ea7n \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 d\u1eabn \u0111\u1ed9ng 10 mm v\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 ch\u1ecbu t\u1ea3i 12 mm. Ki\u1ec3m tra b\u1ea3ng k\u00edch th\u01b0\u1edbc \u0111\u1ec3 t\u00ecm c\u00e1c kh\u1edbp n\u1ed1i c\u00f3 ph\u1ea1m vi \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 n\u00e0y.<\/p>\n

B\u01b0\u1edbc 3 \u2014 Ki\u1ec3m tra m\u00f4-men xo\u1eafn:<\/strong> K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 40 mm c\u00f3 m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c li\u00ean t\u1ee5c l\u00e0 15,0 N\u00b7m. M\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf l\u00e0 24,0 N\u00b7m \u2014 v\u01b0\u1ee3t qu\u00e1 \u0111\u1ecbnh m\u1ee9c c\u1ee7a 40 mm. Chuy\u1ec3n sang \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 50 mm, c\u00f3 m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c li\u00ean t\u1ee5c l\u00e0 30,0 N\u00b7m. M\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf 24,0 N\u00b7m n\u1eb1m trong gi\u1edbi h\u1ea1n n\u00e0y. K\u00edch th\u01b0\u1edbc 50 mm h\u1ed7 tr\u1ee3 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 l\u00ean \u0111\u1ebfn 25 mm \u2014 c\u1ea3 10 mm v\u00e0 12 mm \u0111\u1ec1u n\u1eb1m trong ph\u1ea1m vi cho ph\u00e9p. Ti\u1ebfp t\u1ee5c v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 50 mm.<\/p>\n

B\u01b0\u1edbc 4 \u2014 Ki\u1ec3m tra t\u1ed1c \u0111\u1ed9:<\/strong> Tr\u1ee5c 50 mm c\u00f3 th\u00f4ng s\u1ed1 \u0111\u1ecbnh m\u1ee9c 3.500 v\u00f2ng\/ph\u00fat v\u1edbi \u0111\u1ed9 l\u1ec7ch 0,2 mm. Khi ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 2.500 v\u00f2ng\/ph\u00fat v\u1edbi \u0111\u1ed9 l\u1ec7ch 0,25 mm. \u0110\u1ed9 l\u1ec7ch n\u00e0y h\u01a1i cao h\u01a1n so v\u1edbi \u0111i\u1ec1u ki\u1ec7n tham chi\u1ebfu, do \u0111\u00f3 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 hi\u1ec7u d\u1ee5ng th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat \u2014 kho\u1ea3ng 3.200 v\u00f2ng\/ph\u00fat \u1edf \u0111\u1ed9 l\u1ec7ch 0,25 mm. T\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng 2.500 v\u00f2ng\/ph\u00fat n\u1eb1m trong gi\u1edbi h\u1ea1n cho ph\u00e9p. Ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n

B\u01b0\u1edbc 5 \u2014 Ki\u1ec3m tra \u0111\u1ed9 l\u1ec7ch:<\/strong> \u0110\u0129a c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 50 mm v\u1edbi \u0111\u1ed9 l\u1ec7ch t\u1ed1i \u0111a 0,90 mm. Khi ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c 0,25 mm = 28% so v\u1edbi m\u1ee9c t\u1ed1i \u0111a. \u0110i\u1ec1u n\u00e0y r\u1ea5t t\u1ed1t \u2014 th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng khuy\u1ebfn ngh\u1ecb 50%. D\u1ef1 ki\u1ebfn \u200b\u200btu\u1ed5i th\u1ecd \u0111\u0129a cao.<\/p>\n

B\u01b0\u1edbc 6 \u2014 Ki\u1ec3m tra qu\u00e1n t\u00ednh:<\/strong> Qu\u00e1n t\u00ednh c\u1ee7a kh\u1edbp n\u1ed1i 50 mm l\u00e0 22,0 g\u00b7cm\u00b2. Qu\u00e1n t\u00ednh r\u00f4to \u0111\u1ed9ng c\u01a1 (\u0111i\u1ec3n h\u00ecnh cho \u0111\u1ed9ng c\u01a1 servo 4 N\u00b7m) x\u1ea5p x\u1ec9 180 g\u00b7cm\u00b2. Qu\u00e1n t\u00ednh c\u1ee7a kh\u1edbp n\u1ed1i chi\u1ebfm 12,2% qu\u00e1n t\u00ednh r\u00f4to \u2014 h\u01a1i cao h\u01a1n m\u1ee9c khuy\u1ebfn ngh\u1ecb 10% nh\u01b0ng v\u1eabn ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi tr\u1ee5c CNC b\u0103ng th\u00f4ng ti\u00eau chu\u1ea9n. N\u1ebfu vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh servo g\u1eb7p kh\u00f3 kh\u0103n, h\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng kh\u1edbp n\u1ed1i 40 mm v\u1edbi v\u1eadt li\u1ec7u \u0111\u0129a c\u00f3 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n \u0111\u1ec3 gi\u1ea3m qu\u00e1n t\u00ednh.<\/p>\n

K\u1ebft qu\u1ea3:<\/strong> Kh\u1edbp n\u1ed1i Oldham \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 50 mm, moay\u01a1 k\u1eb9p, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 d\u1eabn \u0111\u1ed9ng 10 mm, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 b\u1ecb d\u1eabn \u0111\u1ed9ng 12 mm, \u0111\u0129a acetal ti\u00eau chu\u1ea9n, moay\u01a1 b\u1eb1ng nh\u00f4m. T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ec1u n\u1eb1m trong ph\u1ea1m vi ti\u00eau chu\u1ea9n v\u1edbi bi\u00ean \u0111\u1ed9 an to\u00e0n.<\/p>\n

\n \"V\u00ed
Vi\u1ec7c xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng t\u1eebng th\u00f4ng s\u1ed1 trong b\u1ea3ng k\u00edch th\u01b0\u1edbc \u2014 m\u00f4-men xo\u1eafn, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7, t\u1ed1c \u0111\u1ed9, \u0111\u1ed9 l\u1ec7ch tr\u1ee5c, qu\u00e1n t\u00ednh \u2014 s\u1ebd t\u1ea1o ra m\u1ed9t l\u1ef1a ch\u1ecdn v\u1edbi c\u00e1c bi\u00ean \u0111\u1ed9 \u0111\u01b0\u1ee3c ghi ch\u00e9p \u0111\u1ea7y \u0111\u1ee7, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng v\u00e0 duy tr\u00ec trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y.<\/figcaption><\/figure>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n

\u0110\u1ec3 \u0111\u1ecdc \u0111\u00fang b\u1ea3ng k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i Oldham, c\u1ea7n xem x\u00e9t m\u1ecdi th\u00f4ng s\u1ed1, kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1eddng k\u00ednh trong v\u00e0 m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c. \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 chi\u1ec1u d\u00e0i x\u00e1c \u0111\u1ecbnh s\u1ef1 ph\u00f9 h\u1ee3p v\u1ec1 m\u1eb7t v\u1eadt l\u00fd. Ph\u1ea1m vi \u0111\u01b0\u1eddng k\u00ednh trong x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi tr\u1ee5c. M\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c k\u1ebft h\u1ee3p v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. T\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c, kh\u1ea3 n\u0103ng ch\u1ecbu sai l\u1ec7ch v\u00e0 qu\u00e1n t\u00ednh x\u00e1c minh r\u1eb1ng k\u00edch th\u01b0\u1edbc \u0111\u00e3 ch\u1ecdn \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1eadn h\u00e0nh c\u1ee7a \u1ee9ng d\u1ee5ng. Vi\u1ec7c xem x\u00e9t t\u1eebng th\u00f4ng s\u1ed1 m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng \u2014 nh\u01b0 \u0111\u00e3 minh h\u1ecda trong v\u00ed d\u1ee5 l\u1ef1a ch\u1ecdn \u2014 s\u1ebd t\u1ea1o ra m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 tu\u1ed5i th\u1ecd cao. B\u1ecf qua b\u1ea5t k\u1ef3 th\u00f4ng s\u1ed1 n\u00e0o \u0111\u1ec1u c\u00f3 nguy c\u01a1 ch\u1ecdn m\u1ed9t kh\u1edbp n\u1ed1i \u0111\u00fang v\u1ec1 m\u1eb7t v\u1eadt l\u00fd nh\u01b0ng kh\u00f4ng ph\u00f9 h\u1ee3p v\u1ec1 m\u1eb7t v\u1eadn h\u00e0nh.<\/p>\n

H\u00e3y xem qua trang c\u1ee7a ch\u00fang t\u00f4i. Danh m\u1ee5c \u0111\u1ea7y \u0111\u1ee7 c\u00e1c lo\u1ea1i kh\u1edbp n\u1ed1i Oldham k\u00e8m theo b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft.<\/a>, ho\u1eb7c Li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i<\/a> \u0110\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 l\u1ef1a ch\u1ecdn cho \u0111\u01a1n \u0111\u0103ng k\u00fd c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"

Oldham coupling catalogues present a dense matrix of numbers \u2014 outer diameters, bores, torque ratings, misalignment capacities, inertia values, and speed limits \u2014 that can be difficult to navigate without a clear understanding of what each parameter means and how the numbers relate to each other. A coupling that is too small for its application […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[722],"tags":[763,913,915,911,910,914,912,916,909],"class_list":["post-879","post","type-post","status-publish","format-standard","hentry","category-blog","tag-coupling-bore-size","tag-coupling-inertia-chart","tag-coupling-misalignment-chart","tag-coupling-outer-diameter","tag-coupling-specifications","tag-coupling-speed-chart","tag-coupling-torque-rating-chart","tag-how-to-read-coupling-datasheet","tag-oldham-coupling-size-chart"],"_links":{"self":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts\/879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/comments?post=879"}],"version-history":[{"count":0,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts\/879\/revisions"}],"wp:attachment":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/media?parent=879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/categories?post=879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/tags?post=879"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}