DIN EN 4614:2020 航空航天系列 带自润滑衬里的耐腐蚀钢球面滑动轴承,宽系列 尺寸和载荷 英制系列
Aerospace series - Spherical plain bearing in corrosion resisting steel with self-lubricating liner, wide series - Dimensions and loads - Inch series; German and English version FprEN 4614:2020