NSK进口单列圆柱滚子轴承授权商 NU1010M轴承直销 杭州振动筛轴承型号齐全
NUP232R 92232E 160mm 290mm 48mm 圆柱滚子轴承
NUP2328R 140mm 300mm 102mm 圆柱滚子轴承
NUP2328 92628 140mm 300mm 102mm 圆柱滚子轴承
NUP2326R 92626E 130mm 280mm 93mm 圆柱滚子轴承
NUP2326 92626 130mm 280mm 93mm 圆柱滚子轴承
NUP2324R 92624E 120mm 260mm 86mm 圆柱滚子轴承
NUP2324 92624 120mm 260mm 86mm 圆柱滚子轴承
NUP2322R 92622E 110mm 240mm 80mm 圆柱滚子轴承
NUP2322 92622 110mm 240mm 80mm 圆柱滚子轴承
NUP2320R 92620E 100mm 215mm 73mm 圆柱滚子轴承
NUP2320 92620 100mm 215mm 73mm 圆柱滚子轴承
NUP232 92232 160mm 290mm 48mm 圆柱滚子轴承
NUP2319R 92619E 95mm 200mm 67mm 圆柱滚子轴承
NUP2319 92619 95mm 200mm 67mm 圆柱滚子轴承
NU2220R 32520E 100mm 180mm 46mm 圆柱滚子轴承
NU2220 32520 100mm 180mm 46mm 圆柱滚子轴承
NU222 32222 110mm 200mm 38mm 圆柱滚子轴承
NU2219R 32519E 95mm 170mm 43mm 圆柱滚子轴承
NU2219 32519 95mm 170mm 43mm 圆柱滚子轴承
NU2218R 32518E 90mm 160mm 40mm 圆柱滚子轴承
NU2218 32518 90mm 160mm 40mm 圆柱滚子轴承
NU2217R 32517E 85mm 150mm 36mm 圆柱滚子轴承
NU2217 32517 85mm 150mm 36mm 圆柱滚子轴承
NU2216R 32516E 80mm 140mm 33mm 圆柱滚子轴承
NU2216 32516 80mm 140mm 33mm 圆柱滚子轴承
NU2215R 32515E 75mm 130mm 31mm 圆柱滚子轴承
NU2215 32515 75mm 130mm 31mm 圆柱滚子轴承
NU2214R 32514E 70mm 125mm 31mm 圆柱滚子轴承
NU2214 32514 70mm 125mm 31mm 圆柱滚子轴承
NU2213R 32513E 65mm 120mm 31mm 圆柱滚子轴承
NU2213 32513 65mm 120mm 31mm 圆柱滚子轴承
NU2212R 32512E 60mm 110mm 28mm 圆柱滚子轴承
NU2212 32512 60mm 110mm 28mm 圆柱滚子轴承
NU2211R 32511E 55mm 100mm 25mm 圆柱滚子轴承
NU2211 32511 55mm 100mm 25mm 圆柱滚子轴承
NUP332R 92332E 160mm 340mm 68mm 圆柱滚子轴承
NUP332 92332 160mm 340mm 68mm 圆柱滚子轴承
NUP330R 92330E 150mm 320mm 65mm 圆柱滚子轴承
NUP330 92330 150mm 320mm 65mm 圆柱滚子轴承
NUP328R 92328E 140mm 300mm 62mm 圆柱滚子轴承
NUP328 92328 140mm 300mm 62mm 圆柱滚子轴承
NUP326R 92326E 130mm 280mm 58mm 圆柱滚子轴承
NUP326 92326 130mm 280mm 58mm 圆柱滚子轴承
NUP324R 92324E 120mm 260mm 55mm 圆柱滚子轴承
NUP324 92324 120mm 260mm 55mm 圆柱滚子轴承
NUP322R 92322E 110mm 240mm 50mm 圆柱滚子轴承
NUP322 92322 110mm 240mm 50mm 圆柱滚子轴承
NUP321R 92321E 105mm 225mm 49mm 圆柱滚子轴承
NUP321 92321 105mm 225mm 49mm 圆柱滚子轴承
NUP320R 92320E 100mm 215mm 47mm 圆柱滚子轴承
NUP320 92320 100mm 215mm 47mm 圆柱滚子轴承
NUP319R 92319E 95mm 200mm 45mm 圆柱滚子轴承
NUP319 92319 90mm 200mm 45mm 圆柱滚子轴承
NUP318R 92318E 90mm 190mm 43mm 圆柱滚子轴承
NUP318 92318 90mm 190mm 43mm 圆柱滚子轴承
NUP317R 92317E 85mm 180mm 41mm 圆柱滚子轴承
NUP317 92317 85mm 180mm 41mm 圆柱滚子轴承
NUP316R 92316E 80mm 170mm 39mm 圆柱滚子轴承
NUP316 92316 80mm 170mm 39mm 圆柱滚子轴承
NUP315R 92315E 75mm 160mm 37mm 圆柱滚子轴承
NUP315 92315 75mm 160mm 37mm 圆柱滚子轴承
NUP314R 92314E 70mm 150mm 35mm 圆柱滚子轴承
NUP314 92314 70mm 150mm 35mm 圆柱滚子轴承
NUP313R 92313E 65mm 140mm 23mm 圆柱滚子轴承
NUP313 92313 65mm 140mm 33mm 圆柱滚子轴承
NUP312R 92312E 60mm 130mm 31mm 圆柱滚子轴承
NUP312 92312 60mm 130mm 31mm 圆柱滚子轴承
NUP311R 92311E 55mm 120mm 29mm 圆柱滚子轴承
NUP311 92311 55mm 120mm 29mm 圆柱滚子轴承
NUP310R 92310E 50mm 110mm 27mm 圆柱滚子轴承
NUP310 92310 50mm 110mm 27mm 圆柱滚子轴承
NUP309R 92309E 45mm 100mm 25mm 圆柱滚子轴承
NUP309 92309 45mm 100mm 25mm 圆柱滚子轴承
NUP308R 92308E 40mm 90mm 23mm 圆柱滚子轴承
NUP308 92308 40mm 90mm 23mm 圆柱滚子轴承
NUP307R 92307E 35mm 80mm 21mm 圆柱滚子轴承
NUP307 92307 35mm 80mm 21mm 圆柱滚子轴承
NUP306R 92306E 30mm 72mm 19mm 圆柱滚子轴承
NUP306 92306 30mm 72mm 19mm 圆柱滚子轴承
NUP305R 92305E 25mm 62mm 17mm 圆柱滚子轴承
NUP305 92305 25mm 62mm 17mm 圆柱滚子轴承
NUP304R 92304E 20mm 52mm 15mm 圆柱滚子轴承
NUP304 92304 20mm 52mm 15mm 圆柱滚子轴承
NUP240R 92240E 200mm 360mm 58mm 圆柱滚子轴承
NUP240 92240 200mm 360mm 58mm 圆柱滚子轴承
NUP238R 92238E 190mm 340mm 55mm 圆柱滚子轴承
NUP238 92238 190mm 340mm 55mm 圆柱滚子轴承
NUP236R 92236E 180mm 320mm 52mm 圆柱滚子轴承
NUP236 92236 180mm 320mm 52mm 圆柱滚子轴承
NUP234R 92234E 170mm 310mm 52mm 圆柱滚子轴承
NUP234 92234 170mm 310mm 52mm 圆柱滚子轴承
NUP2332R 160mm 340mm 114mm 圆柱滚子轴承
NUP2332 92632 160mm 340mm 114mm 圆柱滚子轴承
NUP2330R 150mm 320mm 108mm 圆柱滚子轴承
滚动轴承常见故障
滚动轴承的故障现象一般表现为两种,一是轴承安装部位温度过高,二是轴承运转中有噪音。
1.轴承温度过高
在机构运转时,安装轴承的部位允许有一定的温度,当用手抚摸机构外壳时,应以不感觉烫手为正常,反之则表明轴承温度过高。
轴承温度过高的原因有:润滑油质量不符合要求或变质,润滑油粘度过高;机构装配过紧(间隙不足);轴承装配过紧;轴承座圈在轴上或壳内转动;负荷过大;轴承保持架或滚动体碎裂等。
2.轴承噪音
滚动轴承在工作中允许有轻微的运转响声,如果响声过大或有不正常的噪音或撞击声,则表明轴承有故障。
滚动轴承产生噪音的原因比较复杂,其一是轴承内、外圈配合表面磨损。由于这种磨损,破坏了轴承与壳体、轴承与轴的配合关系,导致轴线偏离了正确的位置,在轴在高速运动时产生异响。当轴承疲劳时,其表面金属剥落,也会使轴承径向间隙增大产生异响。此外,轴承润滑不足,形成干摩擦,以及轴承破碎等都会产生异常的声响。轴承磨损松旷后,保持架松动损坏,也会产生异响。
3.轴承磨损
滚动轴承磨损是轴使用过程中常见的设备问题,主要是由轴的金属特性造成的:金属虽然硬度高,但是退让性差(变形后无法复原)、抗冲击性能差、抗疲劳性能差,因此容易造成粘着磨损、磨料磨损、疲劳磨损、微动磨损等。大部分的轴类磨损不易察觉,只有出现机器高温、跳动幅度大、异响等情况时,才会引起察觉,但是到人们发觉时,大部分滚动轴都已磨损,从而造成机器停机。