Automotive wheel hub 521001 fit for FORD
OE: 521001
Flange Bolt Count: 4
Flange Bolt Size: M14X1.5
Quality: High level
Warranty: 12 Months
Certificate: ISO/TS16949
Place of Origin: China (mainland)
Application:
FORD TRUCK EXPLORER 2006-2006
FORD TRUCK EXPLORER 2007-2007
FORD TRUCK EXPLORER SPORT TRAC 2007-2007
MERCURY TRUCK MOUNTAINEER 2006-2006
MERCURY TRUCK MOUNTAINEER 2007-2007
Damage state: The race wheel, rolling element and cage are heated rapidly during rotation until discoloration, softening, welding and breakage.
Cause: Poor lubrication. Excessive load (preload is too large). The speed is too high. The play is too small. Intrusion of water and foreign matter. The accuracy of the shaft and bearing housing is poor, and the deflection of the shaft is large.
Solution: Study lubricants and lubrication methods. Correct the choice of bearing. Study fit, bearing clearance and preload. Improve the sealing device. Check the accuracy of the shaft and bearing housing. Improve the installation method.
