SKF Spindle Repair

SKF Spindle Rebuild

Possible cause of failure:
• Front bearing quad set failed from coolant contamination, full of coolant sludge.
• Front shaft journal is very fretted and undersized where the #1 bearing sits (-18/-19)(iso is +/-4).
• Taper is worn and has a 20 micron hole.
• Front housing is oversized +8/+18 tapered (iso is +/-7).
• Rear roller was a double row of rollers with one row or rollers taken out.

Recommended action:

• Clean, inspect overall dimensions.
• Replace bearings,o-rings,bellvilles,gripper balls
• Grind chrome plate and finish grind the taper.
• Grind chrome plate and finish grind the front journal.
• Grind chrome plate and finish grind the front housing.
• Adjust preload, balance, assemble and break in. Final quality control inspection.



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