Catastrophic bearing failure was the main cause of this spindle malfunction Continue reading to learn how Northland Tool performed this repair and converted a Weiss GHK 176239 spindle from grease-injected to permanent grease lubrication……
Read MoreSKF 18SB1037 Spindle Repair
The SKF 18SB1037 spindle is grease lubricated, coupling driven, and capable of running up to 1,500 rpm.
CHALLENGE
This SKF 18SB1037 spindle suffered a catastrophic failure of the front roller bearing, likely due to friction from excessive lubrication. We found multiple types of grease throughout the spindle, and the grease was not contained to just the rolling elements. Our customer indicated that front roller preload must not allow more than .0002” axial movement @1000lbs vertical pressure. It was also noted that the front 90mm shaft pilot OD was undersized -12/-15µ with runout of 4/5µ, but the customer stated that this was not significant.
SOLUTION
The following actions were performed on this SKF 18SB1037 spindle:
- Clean, inspect overall dimensions
- Replace bearings, screws, drive coupling bushings, grease fittings, and dust covers
RESULT
After reassembly of all components, adjusting bearing preload, and undergoing break-in and testing procedures, this spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.
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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.
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