NSK 7221BG
Preload 
内径, d105 (0/-0.04) mm
外径, D190 (0/-0.075) mm
宽度, B (or T)36 (0/-0.4) mm
倒角, r min2.1 mm
倒角, r1 min1.1 mm
动负荷, Cr136000 N
静负荷, C0r120000 N
极限转速(油脂)2670 RPM
极限转速(油)3650 RPM
Flush GroundYes
Effective Load Center, a79.9 mm
Cage MaterialMachined Brass Cage
重量3.92 kg
da min117 mm
db minN/A
Da max178 mm
Db max183 mm
ra max2 mm
rb max1 mm
发布时间:2026-09-16

NSK7221BG角接触球轴承供应商

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