Hub bearing inner race ditch position measuring mechanism

The utility model discloses a hub bearing inner race ditch position measuring mechanism, including last type, lower core barrel, measuring pen, the sub - guide arm of survey and standard steel ball, the core barrel upper end forms the location structure who is used for placing and fixing a position the inner circle down, the type that goes up vertically can slide orientation under in directly over the core barrel, the inboard formation lower extreme diameter of the type of going up is greater than the step hole of upper end diameter, the standard steel ball just can be located in the channel in the volume of the awaiting measuring inner circle outside, the step face and the big proper tight standard steel ball upside and the outside surface supported of lower extreme lateral wall of diameter in the inboard step hole of the type of going up, it vertically can slide and insert in the type of locating to survey sub - guide arm, it can be tightly to treating measuring inner circle upper end surface to survey sub - guide arm lower extreme, measuring pen fixed mounting is in last type, measuring pen lower extreme contact can contact surveys sub - guide arm up end, the utility model discloses accuracy of measurement is high, can in time discover the too big defective work of inner circle single item ditch bit error, has effectively reduced bearing finished product disqualification rate and disability rate, has reduced bearing manufacturing cost.