根据工作条件,决定在某转轴的两端采用一对正安装的角接触球轴承,如图所示。已知两个轴承的径向载荷分别为F r1 =1500N,F r2 =2600N,外加轴向载荷F A =1000N,轴颈直径d=40mm,转速n=1460r/min,常温下工作,载荷有中等冲击,预期寿命L' h =6000h。试选择轴承的型号。
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