問題:
在選用NU軸承時應遵照哪些要求?
前言:
NU軸承即圓柱滾子軸承,設計用于承受增強懸臂力/徑向負荷。為了確保圓柱滾子軸承能像其他滾子軸承一樣避免滑動,加載一定的zui小負荷是非常重要的。在高速軸承上尤其如此,由于滾子和籠架的重量帶來的壓力以及潤滑劑中的摩擦力在軸承自身的旋轉軌道上不會產生負面影響。如果沒有加載zui小負荷,在滾子和軌道(軸承溝道)之間將產生破壞性滑動。
回答:
對于為了增強懸臂力而使用圓柱滾子軸承的電機,如果軸承在低于zui小負荷的情況下運行,將會導致軸承損壞。
運行時,加載在軸上的徑向負荷至少應為可允許徑向負荷的30% 。此zui小徑向負荷對應的zui小懸臂力與標準軸承允許的懸臂力大小相當。
例如:
標準2極1LG4/6 機座號為250M的電機,運行于50HZ,允許的懸臂力為: Xo = 3,190 N
Xmax = 2,530 N.
標準2極1LG4/6 機座號為250M的電機,驅動端加K20選件,運行于50HZ,允許的懸臂力為: Xo = 9,100 N
Xmax = 7,300 N.
3,190 N : 9,100 N = 35 %
2,530 N : 7,300 N = 34.6 %
其他信息參見樣本D81.1 中“增強懸臂力軸承”條目。http://www.automation.siemens.com/sd/portal/html_76/support_kataloge.htm .
在樣本D81.1中, 1LA / 1LG 電機為選件號K20
在樣本D81.1N中,1LE1電機的選件號為L22
部分西門子低壓電機產品
1LA7060-2AA10 1LA7060-2AA11 1LA7060-2AA12 1LA7060-2AA10 1LA7060-2AA11 1LA7060-2AA12 1LA7060-2AA10 1LA7060-2AA11 1LA7060-2AA12
1LA7063-2AA10 1LA7063-2AA11 1LA7063-2AA10 1LA7063-2AA11 1LA7063-2AA10 1LA7063-2AA11
1LA7063-2AA12 1LA7063-2AA12 1LA7063-2AA12
1LA7070-2AA10 1LA7070-2AA10 1LA7070-2AA10
1LA7070-2AA11 1LA7070-2AA11 1LA7070-2AA11
1LA7070-2AA12 1LA7070-2AA12 1LA7070-2AA12
1LA7070-2AA11-ZA11 1LA7070-2AA11-ZA11 1LA7070-2AA11-ZA11
1LA7073-2AA10 1LA7073-2AA10 1LA7073-2AA10
1LA7073-2AA11 1LA7073-2AA11 1LA7073-2AA11
1LA7073-2AA12 1LA7073-2AA12 1LA7073-2AA12
1LA7073-2AA10-ZA11 1LA7073-2AA10-ZA11 1LA7073-2AA10-ZA11
1LA7073-2AA11-ZA11 1LA7073-2AA11-ZA11 1LA7073-2AA11-ZA11
1LA7080-2AA10 1LA7080-2AA10 1LA7080-2AA10
1LA7080-2AA11 1LA7080-2AA11 1LA7080-2AA11
1LA7080-2AA12 1LA7080-2AA12 1LA7080-2AA12
1LA7080-2AA10-ZA11 1LA7080-2AA10-ZA11 1LA7080-2AA10-ZA11
1LA7083-2AA10 1LA7083-2AA10 1LA7083-2AA10
1LA7083-2AA11 1LA7083-2AA11 1LA7083-2AA11
1LA7083-2AA12 1LA7083-2AA12 1LA7083-2AA12
1LA7083-2AA10-ZA11 1LA7083-2AA10-ZA11 1LA7083-2AA10-ZA11
1LA7090-2AA10 1LA7090-2AA10 1LA7090-2AA10
1LA7090-2AA11 1LA7090-2AA11 1LA7090-2AA11
1LA7090-2AA10-ZA11 1LA7090-2AA10-ZA11 1LA7090-2AA10-ZA11
1LA7090-2AA11-ZA11 1LA7090-2AA11-ZA11 1LA7090-2AA11-ZA11
1LA7096-2AA10 1LA7096-2AA10 1LA7096-2AA10
1LA7096-2AA11 1LA7096-2AA11 1LA7096-2AA11
1LA7096-2AA10-ZA11 1LA7096-2AA10-ZA11 1LA7096-2AA10-ZA11
1LA7106-2AA10 1LA7106-2AA10 1LA7106-2AA10
1LA7106-2AA11 1LA7106-2AA11 1LA7106-2AA11
1LA7106-2AA12 1LA7106-2AA12 1LA7106-2AA12
1LA7106-2AA60 1LA7106-2AA60 1LA7106-2AA60
1LA7106-2AA60-ZA11 1LA7106-2AA60-ZA11 1LA7106-2AA60-ZA11
1LA7113-2AA10 1LA7113-2AA10 1LA7113-2AA10
1LA7113-2AA11 1LA7113-2AA11 1LA7113-2AA11
1LA7113-2AA12 1LA7113-2AA12 1LA7113-2AA12
1LA7113-2AA60 1LA7113-2AA60 1LA7113-2AA60
1LA7113-2AA61 1LA7113-2AA61 1LA7113-2AA61
1LA7113-2AA60-ZA11 1LA7113-2AA60-ZA11 1LA7113-2AA60-ZA11
1LA7113-2AA61-ZA11 1LA7113-2AA61-ZA11 1LA7113-2AA61-ZA11
1LA7130-2AA10 1LA7130-2AA10 1LA7130-2AA10
1LA7130-2AA60 1LA7130-2AA60 1LA7130-2AA60
1LA7130-2AA61 1LA7130-2AA61 1LA7130-2AA61
1LA7130-2AA60-ZA11 1LA7130-2AA60-ZA11 1LA7130-2AA60-ZA11
1LA7131-2AA10 1LA7131-2AA10 1LA7131-2AA10
1LA7131-2AA60 1LA7131-2AA60 1LA7131-2AA60
1LA7131-2AA61 1LA7131-2AA61 1LA7131-2AA61
1LA7131-2AA60-ZA11 1LA7131-2AA60-ZA11 1LA7131-2AA60-ZA11
1LA7131-2AA61-ZA11 1LA7131-2AA61-ZA11 1LA7131-2AA61-ZA11
1LA7163-2AA60 1LA7163-2AA60 1LA7163-2AA60
1LA7163-2AA61 1LA7163-2AA61 1LA7163-2AA61
1LA7163-2AA60-ZA11 1LA7163-2AA60-ZA11 1LA7163-2AA60-ZA11
1LA7163-2AA61-ZA11 1LA7163-2AA61-ZA11 1LA7163-2AA61-ZA11
1LA7164-2AA60 1LA7164-2AA60 1LA7164-2AA60
1LA7164-2AA61 1LA7164-2AA61 1LA7164-2AA61
1LA7164-2AA60-ZA11 1LA7164-2AA60-ZA11 1LA7164-2AA60-ZA11
1LA7164-2AA61-ZA11 1LA7164-2AA61-ZA11 1LA7164-2AA61-ZA11
1LA7166-2AA60 1LA7166-2AA60 1LA7166-2AA60
1LA7166-2AA61 1LA7166-2AA61 1LA7166-2AA61
1LA7166-2AA60-ZA11 1LA7166-2AA60-ZA11 1LA7166-2AA60-ZA11
1LA7060-4AB10 1LA7060-4AB10 1LA7060-4AB10
1LA7060-4AB11 1LA7060-4AB11 1LA7060-4AB11
1LA7060-4AB12 1LA7060-4AB12 1LA7060-4AB12
1LA7060-4AB11-ZA11 1LA7060-4AB11-ZA11 1LA7060-4AB11-ZA11
1LA7063-4AB10 1LA7063-4AB10 1LA7063-4AB10
1LA7063-4AB11 1LA7063-4AB11 1LA7063-4AB11
1LA7063-4AB12 1LA7063-4AB12 1LA7063-4AB12
1LA7063-4AB11-ZA11 1LA7063-4AB11-ZA11 1LA7063-4AB11-ZA11
1LA7070-4AB10 1LA7070-4AB10 1LA7070-4AB10
1LA7070-4AB11 1LA7070-4AB11 1LA7070-4AB11
1LA7070-4AB12 1LA7070-4AB12 1LA7070-4AB12
1LA7070-4AB10-ZA11 1LA7070-4AB10-ZA11 1LA7070-4AB10-ZA11
1LA7070-4AB11-ZA11 1LA7070-4AB11-ZA11 1LA7070-4AB11-ZA11
1LA7073-4AB10 1LA7073-4AB10 1LA7073-4AB10
1LA7073-4AB11 1LA7073-4AB11 1LA7073-4AB11
1LA7073-4AB12 1LA7073-4AB12 1LA7073-4AB12
1LA7073-4AB10-ZA11 1LA7073-4AB10-ZA11 1LA7073-4AB10-ZA11
1LA7073-4AB11-ZA11 1LA7073-4AB11-ZA11 1LA7073-4AB11-ZA11
1LA7080-4AA10 1LA7080-4AA10 1LA7080-4AA10
1LA7080-4AA11 1LA7080-4AA11 1LA7080-4AA11
1LA7080-4AA12 1LA7080-4AA12 1LA7080-4AA12
1LA7080-4AA10-ZA11 1LA7080-4AA10-ZA11 1LA7080-4AA10-ZA11
1LA7083-4AA10 1LA7083-4AA10 1LA7083-4AA10
1LA7083-4AA11 1LA7083-4AA11 1LA7083-4AA11
1LA7083-4AA12 1LA7083-4AA12 1LA7083-4AA12
1LA7083-4AA10-ZA11 1LA7083-4AA10-ZA11 1LA7083-4AA10-ZA11
1LA7090-4AA10 1LA7090-4AA10 1LA7090-4AA10
1LA7090-4AA11 1LA7090-4AA11 1LA7090-4AA11
1LA7090-4AA10-ZA11 1LA7090-4AA10-ZA11 1LA7090-4AA10-ZA11
1LA7090-4AA11-ZA11 1LA7090-4AA11-ZA11 1LA7090-4AA11-ZA11
1LA7096-4AA10 1LA7096-4AA10 1LA7096-4AA10
1LA7096-4AA11 1LA7096-4AA11 1LA7096-4AA11
1LA7096-4AA10-ZA11 1LA7096-4AA10-ZA11 1LA7096-4AA10-ZA11
1LA7106-4AA10 1LA7106-4AA10 1LA7106-4AA10
1LA7106-4AA11 1LA7106-4AA11 1LA7106-4AA11
1LA7106-4AA12 1LA7106-4AA12 1LA7106-4AA12
1LA7106-4AA60 1LA7106-4AA60 1LA7106-4AA60
1LA7106-4AA61 1LA7106-4AA61 1LA7106-4AA61
1LA7106-4AA10-ZA11 1LA7106-4AA10-ZA11 1LA7106-4AA10-ZA11
1LA7106-4AA60-ZA11 1LA7106-4AA60-ZA11 1LA7106-4AA60-ZA11
1LA7107-4AA10 1LA7107-4AA10 1LA7107-4AA10
1LA7107-4AA11 1LA7107-4AA11 1LA7107-4AA11
1LA7107-4AA60 1LA7107-4AA60 1LA7107-4AA60
1LA7107-4AA61 1LA7107-4AA61 1LA7107-4AA61
1LA7107-4AA60-ZA11 1LA7107-4AA60-ZA11 1LA7107-4AA60-ZA11
1LA7113-4AA10 1LA7113-4AA10 1LA7113-4AA10
1LA7113-4AA11 1LA7113-4AA11 1LA7113-4AA11
1LA7113-4AA60 1LA7113-4AA60 1LA7113-4AA60
1LA7113-4AA61 1LA7113-4AA61 1LA7113-4AA61
1LA7113-4AA60-ZA11 1LA7113-4AA60-ZA11 1LA7113-4AA60-ZA11
1LA7113-4AA11-ZA11 1LA7113-4AA11-ZA11 1LA7113-4AA11-ZA11
1LA7113-4AA61-ZA11 1LA7113-4AA61-ZA11 1LA7113-4AA61-ZA11
1LA7130-4AA10 1LA7130-4AA10 1LA7130-4AA10
1LA7130-4AA11 1LA7130-4AA11 1LA7130-4AA11
1LA7130-4AA60 1LA7130-4AA60 1LA7130-4AA60
1LA7130-4AA61 1LA7130-4AA61 1LA7130-4AA61
1LA7130-4AA60-ZA11 1LA7130-4AA60-ZA11 1LA7130-4AA60-ZA11
1LA7133-4AA10 1LA7133-4AA10 1LA7133-4AA10
1LA7133-4AA11 1LA7133-4AA11 1LA7133-4AA11
1LA7133-4AA60 1LA7133-4AA60 1LA7133-4AA60
1LA7133-4AA61 1LA7133-4AA61 1LA7133-4AA61
1LA7133-4AA60-ZA11 1LA7133-4AA60-ZA11 1LA7133-4AA60-ZA11
1LA7133-4AA61-ZA11 1LA7133-4AA61-ZA11 1LA7133-4AA61-ZA11
1LA7163-4AA10 1LA7163-4AA10 1LA7163-4AA10
1LA7163-4AA60 1LA7163-4AA60 1LA7163-4AA60
1LA7163-4AA61 1LA7163-4AA61 1LA7163-4AA61
1LA7163-4AA60-ZA11 1LA7163-4AA60-ZA11 1LA7163-4AA60-ZA11
1LA7163-4AA61-ZA11 1LA7163-4AA61-ZA11 1LA7163-4AA61-ZA11
1LA7166-4AA11 1LA7166-4AA11 1LA7166-4AA11
1LA7166-4AA60 1LA7166-4AA60 1LA7166-4AA60
1LA7166-4AA61 1LA7166-4AA61 1LA7166-4AA61
1LA7166-4AA60-ZA11 1LA7166-4AA60-ZA11 1LA7166-4AA60-ZA11
1LA7070-6AA10 1LA7070-6AA10 1LA7070-6AA10
1LA7070-6AA11 1LA7070-6AA11 1LA7070-6AA11
1LA7070-6AA12 1LA7070-6AA12 1LA7070-6AA12
1LA7070-6AA11-ZA11 1LA7070-6AA11-ZA11 1LA7070-6AA11-ZA11
1LA7073-6AA10 1LA7073-6AA10 1LA7073-6AA10
1LA7073-6AA11 1LA7073-6AA11 1LA7073-6AA11
1LA7073-6AA12 1LA7073-6AA12 1LA7073-6AA12
1LA7073-6AA11-ZA11 1LA7073-6AA11-ZA11 1LA7073-6AA11-ZA11
1LA7080-6AA10 1LA7080-6AA10 1LA7080-6AA10
1LA7080-6AA11 1LA7080-6AA11 1LA7080-6AA11
1LA7083-6AA11 1LA7083-6AA11 1LA7083-6AA11
1LA7090-6AA11 1LA7090-6AA11 1LA7090-6AA11
1LA7090-6AA11-ZA11 1LA7090-6AA11-ZA11 1LA7090-6AA11-ZA11
1LA7096-6AA10 1LA7096-6AA10 1LA7096-6AA10
1LA7096-6AA11 1LA7096-6AA11 1LA7096-6AA11
1LA7106-6AA10 1LA7106-6AA10 1LA7106-6AA10
1LA7106-6AA11 1LA7106-6AA11 1LA7106-6AA11
1LA7106-6AA12 1LA7106-6AA12 1LA7106-6AA12
1LA7113-6AA10 1LA7113-6AA10 1LA7113-6AA10
1LA7130-6AA10 1LA7130-6AA10 1LA7130-6AA10
1LA7130-6AA11 1LA7130-6AA11 1LA7130-6AA11
1LA7133-6AA10 1LA7133-6AA10 1LA7133-6AA10
1LA7133-6AA60 1LA7133-6AA60 1LA7133-6AA60
1LA7134-6AA10 1LA7134-6AA10 1LA7134-6AA10
1LA7134-6AA60 1LA7134-6AA60 1LA7134-6AA60
1LA7163-6AA60 1LA7163-6AA60 1LA7163-6AA60
1LA7163-6AA60-ZA11 1LA7163-6AA60-ZA11 1LA7163-6AA60-ZA11
1LA7166-6AA60 1LA7166-6AA60 1LA7166-6AA60
1LG4183-2AA60 1LG4183-2AA60 1LG4183-2AA60
1LG4183-2AA61 1LG4183-2AA61 1LG4183-2AA61
1LG4183-2AA66 1LG4183-2AA66 1LG4183-2AA66
1LG4183-4AA60 1LG4183-4AA60 1LG4183-4AA60
1LG4183-4AA61 1LG4183-4AA61 1LG4183-4AA61
1LG4183-4AA66 1LG4183-4AA66 1LG4183-4AA66
1LG4186-4AA60 1LG4186-4AA60 1LG4186-4AA60
1LG4186-4AA61 1LG4186-4AA61 1LG4186-4AA61
1LG4186-4AA66 1LG4186-4AA66 1LG4186-4AA66
1LG4186-6AA60 1LG4186-6AA60 1LG4186-6AA60
1LG4186-6AA61 1LG4186-6AA61 1LG4186-6AA61
1LG4186-6AA66 1LG4186-6AA66 1LG4186-6AA66
1LG4206-2AA60 1LG4206-2AA60 1LG4206-2AA60
1LG4206-2AA61 1LG4206-2AA61 1LG4206-2AA61
1LG4206-2AA66 1LG4206-2AA66 1LG4206-2AA66
1LG4207-2AA60 1LG4207-2AA60 1LG4207-2AA60
1LG4207-2AA61 1LG4207-2AA61 1LG4207-2AA61
1LG4207-2AA66 1LG4207-2AA66 1LG4207-2AA66
1LG4207-4AA60 1LG4207-4AA60 1LG4207-4AA60
1LG4207-4AA61 1LG4207-4AA61 1LG4207-4AA61
1LG4207-4AA66 1LG4207-4AA66 1LG4207-4AA66
1LG4206-6AA60 1LG4206-6AA60 1LG4206-6AA60
1LG4206-6AA61 1LG4206-6AA61 1LG4206-6AA61
1LG4206-6AA66 1LG4206-6AA66 1LG4206-6AA66
1LG4207-6AA60 1LG4207-6AA60 1LG4207-6AA60
1LG4207-6AA61 1LG4207-6AA61 1LG4207-6AA61
1LG4207-6AA66 1LG4207-6AA66 1LG4207-6AA66
1LG4220-4AA60 1LG4220-4AA60 1LG4220-4AA60
1LG4220-4AA61 1LG4220-4AA61 1LG4220-4AA61
1LG4220-4AA66 1LG4220-4AA66 1LG4220-4AA66
1LG4223-2AA60 1LG4223-2AA60 1LG4223-2AA60
1LG4223-2AA61 1LG4223-2AA61 1LG4223-2AA61
1LG4223-2AA66 1LG4223-2AA66 1LG4223-2AA66
1LG4223-4AA60 1LG4223-4AA60 1LG4223-4AA60
1LG4223-4AA61 1LG4223-4AA61 1LG4223-4AA61
1LG4223-4AA66 1LG4223-4AA66 1LG4223-4AA66
1LG4223-6AA60 1LG4223-6AA60 1LG4223-6AA60
1LG4223-6AA61 1LG4223-6AA61 1LG4223-6AA61
1LG4223-6AA66 1LG4223-6AA66 1LG4223-6AA66
1LG4253-2AB60 1LG4253-2AB60 1LG4253-2AB60
1LG4253-2AB61 1LG4253-2AB61 1LG4253-2AB61
1LG4253-2AB66 1LG4253-2AB66 1LG4253-2AB66
1LG4253-4AA60 1LG4253-4AA60 1LG4253-4AA60
1LG4253-4AA61 1LG4253-4AA61 1LG4253-4AA61
1LG4253-4AA66 1LG4253-4AA66 1LG4253-4AA66
1LG4253-6AA60 1LG4253-6AA60 1LG4253-6AA60
1LG4253-6AA61 1LG4253-6AA61 1LG4253-6AA61
1LG4253-6AA66 1LG4253-6AA66 1LG4253-6AA66
1LG4280-2AB60 1LG4280-2AB60 1LG4280-2AB60
1LG4280-2AB61 1LG4280-2AB61 1LG4280-2AB61
1LG4280-2AB66 1LG4280-2AB66 1LG4280-2AB66
1LG4283-2AB60 1LG4283-2AB60 1LG4283-2AB60
1LG4283-2AB61 1LG4283-2AB61 1LG4283-2AB61
1LG4283-2AB66 1LG4283-2AB66 1LG4283-2AB66
1LG4280-4AA60 1LG4280-4AA60 1LG4280-4AA60
1LG4280-4AA61 1LG4280-4AA61 1LG4280-4AA61
1LG4280-4AA66 1LG4280-4AA66 1LG4280-4AA66
1LG4283-4AA60 1LG4283-4AA60 1LG4283-4AA60
1LG4283-4AA61 1LG4283-4AA61 1LG4283-4AA61
1LG4283-4AA66 1LG4283-4AA66 1LG4283-4AA66
1LG4280-6AA60 1LG4280-6AA60 1LG4280-6AA60
1LG4280-6AA61 1LG4280-6AA61 1LG4280-6AA61
1LG4280-6AA66 1LG4280-6AA66 1LG4280-6AA66
1LG4283-6AA60 1LG4283-6AA60 1LG4283-6AA60
1LG4283-6AA61 1LG4283-6AA61 1LG4283-6AA61
1LG4283-6AA66 1LG4283-6AA66 1LG4283-6AA66
1LG4310-2AB60 1LG4310-2AB60 1LG4310-2AB60
1LG4310-2AB61 1LG4310-2AB61 1LG4310-2AB61
1LG4310-2AB66 1LG4310-2AB66 1LG4310-2AB66
1LG4313-2AB60 1LG4313-2AB60 1LG4313-2AB60
1LG4313-2AB61 1LG4313-2AB61 1LG4313-2AB61
1LG4313-2AB66 1LG4313-2AB66 1LG4313-2AB66
1LG4310-4AA60 1LG4310-4AA60 1LG4310-4AA60
1LG4310-4AA61 1LG4310-4AA61 1LG4310-4AA61
1LG4310-4AA66 1LG4310-4AA66 1LG4310-4AA66
1LG4313-4AA60 1LG4313-4AA60 1LG4313-4AA60
1LG4313-4AA61 1LG4313-4AA61 1LG4313-4AA61
1LG4313-4AA66 1LG4313-4AA66 1LG4313-4AA66
1LG4310-6AA60 1LG4310-6AA60 1LG4310-6AA60
1LG4310-6AA61 1LG4310-6AA61 1LG4310-6AA61
1LG4310-6AA66 1LG4310-6AA66 1LG4310-6AA66
1LG4313-6AA60 1LG4313-6AA60 1LG4313-6AA60
1LG4313-6AA61 1LG4313-6AA61 1LG4313-6AA61
1LG4313-6AA66 1LG4313-6AA66 1LG4313-6AA66
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