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平均摩擦力矩值为仪器轴承质量的重要指标之一.现在各轴承厂所用的测量仪器皆是仿苏C—24型机械式仪器.然该仪器纯系手工操作,手续十分麻烦.要先将一吊有重锤的线绕于套在轴承上的惯性轮外缘,然后使惯性轮在重锤的作用下开始旋转.重锤脱落后,操作者开始招表计时并用眼盯住惯性轮数圈数,直到轴承因摩擦而停止旋转.记下所转的总圈数及总时间,再由公式
The average friction torque value is one of the important indexes of the quality of the bearing.Nowadays, all the measuring instruments used in the bearing factory are imitation Su C-24 type mechanical instrument.However, the instrument is purely hand-operated and the procedure is very troublesome. Hanging the weight of the wire wrapped around the outer edge of the bearing on the flywheel, and then make the flywheel began to rotate under the weight of the hammer.When the hammer off, the operator began to recruit chronograph and eye with the eye ring of inertia Until the bearing rotation due to friction and stop. Note the total number of turns and total time, and then by the formula