Tarp system axle bearings are used to suspend the shaft of the non-motor end of the tarp spool, allowing it to spin freely to wind or unwind the tarp. For manual systems, you would use two of these bearings, one on each side. The bore is is 3/4" and the bolts holes are 2 3/4" apart center-to-center. A set screw can be tightened with a hex key to affix the bearing to the shaft. This axle bearing replaces these part numbers: US Tarp 11139, Mountain K0187, Buyers 3012784, ABWF.
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