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Second Shift Emergency Repair of a Ball Screw for the CNC Machinery Industry

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On a recent late afternoon, a customer in the automotive industry contacted Thread-Craft with an emergency situation; a ballscrew from their heavy duty CNC machinery was in need of an urgent repair. Production needed to be running again by morning. Our sales engineer picked up the unit, immediately realizing it was damaged well beyond any repair, including a regrind or even quick fix. Given the unique situation, Thread-Craft was able to use the existing ballnut and previously manufactured 4150 screw material to craft an innovative solution. The unit was modified on the spot and repaired using our advanced milling, turning, and grinding capabilities. Tolerances of +/-.0002" were required to return the bearing diameters back to OEM specifications. The unit was preloaded, dimensionally inspected and then sent to a final running condition test.

This critical repair project was completed during our second shift, and turned around in only 12 hours. The customer was back to full production by 6:00 AM the next morning.

At Thread-Craft we are unique in our ability to reverse engineer and repair components such as this with exceedingly short lead times by utilizing our unmatched machine capacity and second shift, which includes experienced assemblers. We stand behind our craftsmanship and offer a full warranty. For more information about this emergency ball screw repair please see the table below or contact us directly.

Emergency Repair of a Ball Screw for the CNC Machinery Industry

Highlights of this Emergency Repair Process

Product Description	This ballscrew is used on a heavy duty CNC manufacturing machine.
Emergency Repair Capabilities Applied/Processes	Primary: Ballscrew Engineering Field Support Emergency Repair Shift Support CNC Machining Milling Turning Grinding Secondary: De-Burring
Equipment Used to Manufacture Part	Saw, Lathe, Mill, OD Grinder, 'V'-Thread Grinder
Overall Part Dimensions	50mm x 10mm lead x 1280 mm OAL
Tightest Tolerances	+/- .0002 Bearing Diameter
Material Used	4150 Previously manufactured screw material, Customer supplied nut
Material Finish	Ground
In process testing/inspection performed	Dimensional inspection, preload and running condition test
Industry for Use	Manufacturing - CNC Machinery Automotive
Volume	1
Delivery/Turnaround Time	12 hours
Delivery Location	Port Huron, Michigan
Standards Met	Customer Specifications
Product Name	Emergency Ball Screw Repair