Heald Redhead 413
Heald Redhead 413 Spindle Repair
A bearing manufacturer sent us a Heald Red Head belt driven 413 A-Frame style spindle. The customer wanted to increase the maximum speed capability of the Heald to decrease their machine downtime from changing out the ID spindle heads. They also wanted to increase they rigidity of the spindles used at 18,000 rpm. The existing bearing arraignment of the in the spindle had a maximum speed of 17,000. Our customer wanted to run his spindle at between 8,200 and 18,000 rpm. We replaced the steel bearings with ceramic bearings and implemented design improvements. We were able to increase the maximum speed to 21,000 rpm.
This is possible by insuring all the integral spindle precision parts were measured and gauged making sure they were at proper tolerances. This is critical when increasing the speed of a spindle. The spindle was then tested at the higher rpm, vibration analysis was performed and the top speed was calculated with the data accumulated. The customer received the Heald spindle and has stated the finish and accuracy it provides is far better than before the modification. They have increased productivity with the spindle and have requested ceramic bearings in any future Heald spindle rebuilds done by Northland Tool & Electronics. View Our Heald Spindle Repair Page Here.
Written by Sandy Smith
I can be contacted at email@example.com or 1-800-774-6353
GMN TSSV 100
Heald Red Head 264049
GMN TSI 80X250
Heald Red Head 401
Heald Redhead Quill Change Upgrade
Our customers have asked us to help them overcome a design flaw on their older Heald Readhead spindles. To change the quill on their dovetail spindles was very difficult as there was no good way to hold the shaft captive while unthreading the quill. In this case the best solution was to manufacture a quill extension that gives them wrench flats to use during tooling changes. We have also manufactured replacement shafts with an updated design and modified the existing spindle to incorporate a locking pin. This design change has reduced the tooling change times, reduced damage to the spindle and made the operators job safer and easier. View Our Heald Spindle Repair Page Here.