. E; P6 ~0 C' q3 e% l/ ^付照片 6 k' }. T: @" l/ X% w8 \# l2 e* o 4 C: t {( U5 _1 B; T5 ^* O作者: 老鄭bj 時間: 2011-1-7 17:19
6205Z是深溝球軸承,帶防塵圈,沒聽說有偏心一說。 8 h: C/ Z& [8 K+ c" `# ]3 G溝槽也沒見過,后加工的吧?這種溝槽一般用來卡軸承用的,軸向定位。作者: 649997847 時間: 2011-1-8 08:31
這應該是一個帶止動槽的深溝球軸承,再加一個制動環,做軸向定位的 。樓上說的很對呀作者: LIAOYAO 時間: 2011-1-8 11:50
回復樓上兩位,這個不是止動槽,若是帶止動槽的深溝球軸承那么就沒有啥好問的。照片是帶帶止動槽的深溝球軸承 : L, `( {1 q$ K, {$ |% w2 \5 i& ^" L! G W" d : @% J. {* j) x6 v6 v% t
; }" q) d8 q% ~
在網上查不到這樣的軸承,NSK的紙質樣本里也查不到,后綴 N 或 NR 的槽寬是1.35mm,最大槽深徑是49.73mm;* m: f, l6 c# E- s9 q: K: g. E
照片上軸承的槽寬是2.0mm,槽深徑是50.0mm;偏心量0.50mm(淺處0.5mm,深處1.5mm)。/ x, ]* `5 r! e9 h# f1 C
金屬薄片厚度0.70mm,寬度1.75mm。* r$ d# d- \# W* {' q H0 v
7 h- f6 [# ~* _% r/ \8 V3 d# t 作者: 649997847 時間: 2011-1-8 15:32 回復 LIAOYAO 的帖子 # S. N2 g9 y" M% m' u) |, q: r0 {
那就真么見過了 小日本的東西就是怪啊 6 ]- h( W/ K% `9 w不過從你說的軸承后綴(6205 Z “Z”表示防塵蓋)來看 ,沒有任何關于這個偏心溝槽的呀7 b: I5 u2 _; u 作者: 649997847 時間: 2011-1-8 15:37 回復 649997847 的帖子 W* B' c$ |& k9 a
0 X, R3 l) D P' [莫非 真是自己加工的??這是樓上那位仁兄提及的4 y" ? K* F/ V, v7 c. `
再有 如果是正品NSK軸承 后綴里面會有相應的表示呀 莫非是假的 7 w$ |7 U' b7 }1 d( s G g作者: LIAOYAO 時間: 2011-1-8 17:06 回復 649997847 的帖子 N- r4 i+ j) W5 t9 S- u9 {) Y 2 [5 [; B2 k* V7 B使用位置 NOP油泵的電動機軸芯支撐軸承 ) T9 g1 `* P5 H7 X2 a0 x! \% W" zNOP是日本三大專業制泵企業之一。 9 [ L) I" p/ c7 F機器出自日本在國內的工廠,油泵是配屬于機器的潤滑系統,受損前是未被拆修過的。. n- Z5 T) y( J( `, N
所以,不用懷疑是 假貨 或是自己研磨的。 . U/ E0 {) c% l$ l0 K# H: W1 S # Q2 E1 l/ K/ } 3 A" b9 h8 Z* y# U$ `" ^
就是在幾種軸承樣本里查不到,網上也查不到,才來社區請教。 z3 W* K2 ]* j m& ]4 x A# i' ^3 z5 o \. [( x
$ `* _' e1 [5 [3 H: Q' @( G
$ v5 {6 N6 m/ F$ F5 A9 ~ 作者: 649997847 時間: 2011-1-10 11:49 回復 LIAOYAO 的帖子! @( k7 X f" w5 N: w
: P5 j$ q6 {( h5 A. m0 N
坐等高手回答 期待ing作者: glazheng 時間: 2011-1-10 17:28 本帖最后由 glazheng 于 2011-1-10 17:33 編輯 $ |5 m' O$ a1 x" G& b. b9 x6 @. z0 T q. E
這是NSK的一項專利設計,國內好像人本也申請了。其實說穿了,也沒啥;就是在有些應用中,以軸承腔是鋁合金為例,鋼和鋁熱膨脹率不同,發熱后,為了防止外圈在軸承腔內爬動,所以有意的做個偏心槽。這樣一來靠制動環的偏心量來和軸承腔摩擦阻止軸承外圈的爬動。(好人做的底,下面是從網上找的,貼過來) {) N/ s1 a, ~0 @8 gNSK: - L) m) f( k q7 rBACKGROUND OF THE INVENTION2 o& t: ?- M5 F6 N1 {
The present invention relates to a rolling bearing creep prevention device, and particularly to a rolling bearing creep prevention device which is used to prevent the outer ring 1 q7 ? f5 [# X$ W' Gof a rolling bearing built in a rotation support section of each auxiliary machine for an automobile, such as an alternator or car air-conditioner compressor, from rotating in a housing., x7 j$ a& n3 t) N( _" p
Various auxiliary machines for an automobile often have a housing made of an aluminum alloy within which a rolling bearing for supporting a rotation shaft built. In the case where the rolling bearing is built in the inside of the housing, the outer ring forming a part of the rolling bearing is stationary fixed to the inside of the housing by a fittingly inserting manner. However, the aluminum alloy, J4 v6 s& C+ P* ]3 o
forming the housing has a thermal expansion coefficient larger than bearing steel forming the outer ring of the rolling bearing. Thus, if no countermeasures are taken, when temperature rises, the interference of the outer ring relative to the housing is lowered (or is lost), so that a so-called creep where the outer ring rotates in the housing is occurred and a rattle is simultaneously occurred in the rotation support section because of the rolling bearing. Moreover, the inner peripheral surface of the housing wears with rotation of the outer ring, thus the rattle grows gradually...... 1 B+ i+ }5 ?6 |$ R$ [1 i# q; J人本: ) x6 V! a+ u7 t: T前言:本實用新型涉及一種含有偏心止動環的滾動軸承,包括:本體(1);在本體(1)的外徑上車加工一個與軸承外徑不同心的偏心槽(12);所述偏心槽(12)的圓心與軸承的圓心有個偏心量e;還包括一個止動環(11);所述止動環(11)安置在偏心槽(12)內;本實用新型的有益效果是:當軸承安裝在軸承室內時由于有偏心量的存在,當軸承有旋轉的趨勢時,止動環卡緊量會隨著增加阻止軸承外徑跟隨轉動,防止了打滑轉動的現象。- O( C- U ^" k4 a& m4 N2 H