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Will Outer Bearing Push Out If Grease Is Installed and the Spindle Nut Isn't On

Question:

I have greased these types of bearings on my camper without first removing the washer, spindle nut and nut retainer as it would be indicated in your response as quoted below. I do jack the axle and slowly pump the grease while rotating the wheel. I would think the outer bearing would be forced out and not be lubricated if it was not secured. Once you see the grease seeping through, you can install the washer, spindle nut and nut retainer. Keep in mind, when threading on the castle nut, you will want to tighten the nut until it is hand tight and then slightly back it off.

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Expert Reply:

Bearings fit pretty tightly to the spindle as the clearances are very tight. Combined with that and the vertical pressure of the hub on the spindle/bearing it's held in place well and the grease would not push it out.

"With the EZ lube zerk fitting you'll want to pump grease until you begin to see the outer bearing move or you see grease seeping through the outer bearing. If you pump the grease slowly and rotate the hub, you should not blow the grease seal. Once you see the grease seeping through, you can install the washer, spindle nut and nut retainer. Keep in mind, when threading on the castle nut, you will want to tighten the nut until it is hand tight and then slightly back it off."

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Jameson C

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