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本标准适用于各种机械中一般用途的内径1～20mm的粉末冶金球形轴承(以下简称轴承) 1.轴承型式按下图规定。倒角允许按图中(a)或(b)制造
This standard applies to all kinds of mechanical general purpose diameter 1 ~ 20mm powder metallurgy spherical bearings (hereinafter referred to as bearings) 1. Bearing type according to the figure specified. Chamfering is allowed as shown in (a) or (b)