提供national油封.doc

national 6245S油封是用来封油（油是传动系统中最常见的液体物质，也泛指一般的液体物质之意）的机械元件，它将传动部件中需要润滑的部件与出力部件隔离，不至于让润滑油渗漏静密封和动密封（一般往复运动）用密封件叫密封件联系方式：：15392156553 ：728661741NATIONAL油封特点NATIONAL油封与其它品牌的最大不同之处，就是在铁壳外圈的外径上喷涂了红色的REDICOAT专用涂漆，一方面可以区别其它品牌的颜色，另一方面，也是最主要的方面，铁壳外径喷涂红漆可增加外径的密封性能，可填充装配孔腔表面之缺陷或刮痕，避免密封流体由外径泄漏这种REDICOAT涂漆，对孔腔面的加工光洁度就有所放松，允许有较大的表面粗糙度，同样起到内骨架油封（外径包有橡胶）的密封效果NATIONAL油封分内包骨架油封和外露骨架油封，带自紧弹簧式和无自紧弹簧式但NATIONAL油封最主要以外露骨架为主，常用的有41、45、47、48系列外骨架油封相对于内骨架油封来言，刚性好、定位准确、同轴度高、导热散热好、加工精度高、要求胶与金属之间有较高的粘合强度national 6245S national 6283S national 6324S national 6329S national 6336S national 6340 national 6357S national 6358 national 6380 national 6389 national 6402S national 6426 national 6465B national 6481 national 6481S national 6545 national 6547 national 6565N national 6575S national 6584S national 6590S national 6597S national 6603 national 6612S national 6622 national 6626S national 6635S national 6636S national 6638S national 6643S national 6644 national 6668S national 6703S national 6704 national 6759S national 6760S national 6780S national 6781 national 6808N national 6815 national 6818 national 6832S national 6835S national 6840S national 6855N national 6859S national 6872S national 6873S national 6879H national 6886S national 6906S national 6930 national 6936S national 6949S national 6957 national 6959 national 6960 national 6966S national 6971S national 6982S national 6985 national 6988H national 7006S national 7013S national 7014S national 7021S national 7022S national 7028V national 7028 national 7038Snational 7044N national 7105S national 7131 national 7154S national 7186S national 7188S national 7208S national 7214 national 7216 national 7230 national 7235S national 7245 national 7300S national 7338N national 7354V national 7354N national 7378 national 7381S national 7387 national 7399S national 7412S national 7413 national 7456N national 7457N national 7486S national 7495S national 7506N national 7512S national 7512Snational 7537S national 7564 national 7568 national 7581H national 7600S national 7607 national 7679 national 7686S national 7692S national 7700S national 7715S national 7729 national 7731 national 7743 national 7750 national 7751H national 7769 national 7780 national 7780N national 7781S national 7782N national 7790H national 7834 national 7840S national 7843 national 7866S national 7886S national 7896S national 7929S national 7934S national 7937N national 7941 national 7994S national 8059S national 8084N national 8121S national 8126S national 8133S national 8139 national 8160S national 8165 national 8181N national 8229 national 8243 national 8250 national 8293S national 8312 national 8314 national 8338 national 8346 national 8362 national 8370S national 8398 national 8421S national 8427 national 8429S national 8430S national 8460N national 8477S national 8516N national 8521S national 8548H national 8549S national 8557 national 8561 national 8571 national 8594S national 8597S national 8609 national 8610G national 8611N national 8620N national 8622 national 8635S national 8650S national 8660L national 8660S national 8673 national 8676S national 8695S national 8695L national 8704S national 8705S national 8724S national 8730 national 8750S national 8773S national 8792S national 8835S national 8835L national 8871 national 8880 national 8883 national 8907 national 8935S national 8940S national 8974S national 8975S national 8976S national 8994N national 9015S national 9087 national 9128S national 9150S national 9158 national 9161 national 9178S national 9190N national 9195S national 9303S national 9316 national 9339S national 9344S national 9363S national 9376 national 9406S national 9470 national 9487 national 9540 national 9541N national 9555S national 9568 national 9569S national 9599S national 9600S national 9613S national 9674 national 9711 national 9773 national 9844 national 9845 national 9845V national 9864S national 9912 national 9928H national 9943 national 10543S national 30308 national 30365 national 35012N national 35949N national 37921 national 37939 national 38832 national 39044 national 39140 national 39302 national 39701 3national 9703 national 39711 national 39713 national 39715 national 39717 national 39719 national 39723 national 39732 national 39801 national 39802 national 39803 national 39809 national 39813 national 39815 national 39817 national 39821 national 39823 national 39825 national 39827 national 39835 national 39849 national 39851 national 39853 national 39880 national 39899 national 39900 national 39904 national 39920 national 39925 national 39930 national 39958 national 40027S national 40032S national 40053S national 40059S national 40063S national 40067S national 40071S national 40085S national 40094S national 40101S national 40140S national 40154S national 40157S national 40160S national 40162S national 40169S national 40183S national 40185 national 40208 national 40230S national 40286 national 40301S national 40316S national 40337S national 40360S national 40。