Description
When your front wheels start feeling loose or you notice that steering isn’t as tight as it used to be, chances are your wheel bearings need attention. This castellated hub nut is what keeps everything properly adjusted and safe. It’s the part that secures your wheel to the axle and sets the correct bearing preload—get it wrong and you’ll either have dangerous wheel play or expensive bearing damage.
What You’re Getting
- Heavy-duty steel construction that handles the daily pounding of farm work
- Castellated design with slots for a cotter pin so your wheel can’t work loose
- Precision 72.67mm threading that fits your spindle exactly right
- Heat-treated material that won’t strip threads or wear out prematurely
Built for Real Farm Work
This nut fits the Ford New Holland 40 Series workhorses—5640, 6640, 7740, 7840, 8240, and 8340 models that handle everything from loader work to heavy tillage. Whether you’re moving hay bales, pulling a cultivator, or running a brush hog, proper wheel bearing adjustment is what keeps your tractor tracking straight and your tires wearing evenly.
Made to Last
Farm tractors take a beating, and this hub nut is engineered to handle it. The heat-treated steel resists thread wear and the precision manufacturing ensures it’ll thread on smoothly and hold tight. You’ll get years of reliable service from this part, even with daily use in tough conditions.
Installation Notes
Getting the bearing adjustment right is critical—too loose and you’ll have dangerous play, too tight and you’ll burn up bearings. Follow the proper procedure: torque to spec while turning the wheel, back off the prescribed amount, then re-torque and check for proper end-play. Always use a new cotter pin for safety.
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