电机的这些参数是什么意思?请各位指教.1.rear housing shaft extension,dim.13.9,measured with shaft output side (pinion side) pushed against steel end cap.2.direction of rotation:anti-clockwise when viewing motor output shaft end with positive voltage.3.no gap between ball bearing and outer spacer.4.axial end play 0.1mm max.when 1KG force is applied.5.terminals are tin-plated 1-10um.6.the surfaces must be free from excess grease and oil residues -no visible spots.7.cogging torque to beless than 4.8mNm at 10-20 rpm.8.pinion twist-off torque to be 0.5 Nm min.9.to measure endcap perpendicularity:motor to be rotated horizontally about centerline,measure T.I.R.about a circle at the endcap surface using a dial gauge.10.pinion extraction force 100kgf min,twist-off torque 0.5 nm min.11.radial play 50um max.谢谢楼下的回答,等待更专业的解释! 英语
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【答案】 1.,轴输出端（小齿轮侧）对钢端盖推测后盖轴伸,dim.13.9,
2,旋转方向：正电压输出端时电机轴逆时针.
3 内外之间没有间隔球轴承,
4 施加 1公斤力时轴端的最大偏移0.1mm.
5终端镀锡长度1 - 10um
6表面无残留多余的油脂和油,无明显斑点
7齿槽转矩beless比4.8mNm转10-20
8齿轮扭矩0.5 Nm/分钟
9端盖垂直衡量：水平方向旋转电机中心线左右,公路运输措施大约在端盖采用千分表表面圈.
10 齿轮拔出力100kg/分钟,拧矩0.5纳米/分钟.
11 50um的最大径向偏移l量.