- _; J9 C* ]* t `/ e莫非 真是自己加工的??這是樓上那位仁兄提及的1 A6 }7 m8 U3 z/ [
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, e% m+ y7 L0 h M 作者: LIAOYAO 時間: 2011-1-8 17:06 回復 649997847 的帖子# d& } {" n! c. X1 w0 B) S! Z
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使用位置 NOP油泵的電動機軸芯支撐軸承- x; O' H9 J9 R+ C- j- g' ^
NOP是日本三大專業制泵企業之一。+ q/ m$ X: g9 n i
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。7 n7 Z/ t, {4 Y: |( q
所以,不用懷疑是 假貨 或是自己研磨的。 6 r) m2 F5 S) M7 X X" M; ?4 n0 J1 P8 V$ M1 _0 w% O0 F
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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。5 t3 m E; ^: |3 i$ G C
: v6 A7 `$ M" {) K8 h7 H % l+ v+ v- u* ~# O. O6 O3 v2 H, |) U" G6 R: e. m 作者: 649997847 時間: 2011-1-10 11:49 回復 LIAOYAO 的帖子 % y& Y" [# @* u, s. Z+ X: @5 D3 K# { J
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 ( q- L4 X, @3 E( ?/ U
2 A: k4 q8 x0 U$ a# e5 T; ?) u, 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) 2 T$ F3 o9 c# w3 {6 i0 VNSK: . C0 h+ S# G3 }& S8 W
BACKGROUND OF THE INVENTION / c% ]6 e8 }: a' a' C$ W6 e) y kThe 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" o0 x3 h# m; \2 `/ s n
of 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.7 w6 Z+ g+ ?, W
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: j2 _# a: I& w
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...... # X( p9 j" s7 H7 h' Z$ z0 H8 @5 F人本:0 b1 {) v3 {) N+ G, c& O
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。 9 P3 P- M3 R' j% m! T, Y0 U I- L # e2 G' @9 \ D( F$ E4 H+ @作者: LIAOYAO 時間: 2011-1-10 18:45
難怪外圈會有銹損,在這貼之前也想不透外圈為什么會受損。 . \5 K4 }3 h4 F9 a6 f* Z現在一切都明了。 2 |" ]% x2 ?0 r! y0 O, D
glazheng 感謝您的幫助。作者: 深海微藍 時間: 2011-1-10 19:38