Agricultural vehicles—Mechanical connections between towed and towing vehicles—Part 5:Dimensions of ball-type coupling device
IDT ISO 24347:2005
全国拖拉机标准化技术委员会(SAC/TC 140)
GB/T 19408的本部分规定了名义直径80 mm 的球形连接装置的尺寸和位置，凸形部分安装于农业牵引车辆上，凹形部分安装于被牵引车辆上。用于非平衡车辆间的机械连接，其下压垂直静载荷不应超过40 kN。
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