Cincinnati Arrow Spindle Repair

6000 rpm

This spindle came into our facility with a low drawbar force. We broke the spindle down and found that the area on the drawbar where the Belleville’s sit was scored.

The drawbar is a critical component in the spindle. The reason for low force might be caused from weak Belleville’s, wear to the drawbar, or debris in the drawbar. If the force is low you might get chatter, repeatability or finish issues. The drawbar should be checked periodically. This can sometimes help save a customer from major spindle repair cost.

We had to grind the drawbar in order to allow the new Belleville’s to seat properly. The spindle was rebuilt and the repaired drawbar was inserted into the spindle. The outgoing test shows that the drawbar had 1,528 lbs of force.

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More Case Studies

Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.