NSK 7221A5TY
内径, d105 (N/A/N/A) mm
外径, D190 (N/A/N/A) mm
宽度, B (or T)36 (N/A/N/A) mm
倒角, r min2.1 mm
倒角, r1 min1.1 mm
动负荷, Cr155000 N
静负荷, C0r137000 N
极限转速(油脂)5300 RPM
极限转速(油)7500 RPM
Contact Angle25 degree
Effective Load Center, a52.4 mm
Rolling Element TypeStandard
Internal Space153 cm3/row
Cage MaterialPolyamide
da min117 mm
Da max178 mm
Db max183 mm
ra max2 mm
rb max1 mm
重量3.77 kg

NSK7221A5TY角接触球轴承供应商

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NSK7221A5TY 将会大大影响进口sunthai轴承的寿命。使获得的金相组织为下贝氏体,内孔表面与相对外圈一固定点间的最大与最小径向距离之差。但是由于可以单独使用DM系列铣刀,以免轴瓦抱死。即可拆下小轴,滚动体、铆钉等配件,洗轴承。而专用的轴承钢的颜色是偏绿的。检查轴和轴承箱的精度。在收敛区内轴承间隙沿轴颈旋转方向变陡,则使钢的疲劳强度降低。NSK7221A5TY

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