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what is the spacer object-bearing spindle

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put new bearings in my middle mower spindle & when put back together, tighten up nut on big pulley it tightens the whole assembly so blades wont spin. can I shorten up spacer so I can tighten nut so blades will spin?

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You may not have the correct amount of washers in the stack causing you to run out of threads above the pulley. Does it turn at all or just tight. New bearings won`t spin, but will turn.

If it has correct parts according to the parts manual try putting a washer between the pulley and nut. If it won`t turn at all I would look at parts manual and see what is missing.

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There are a couple of washers that are exactly the diameter of the inner race, and those are critical so that when you tighten down you are tightening the stack against that inner race only. Otherwise it will bind up against the entire bearing surface and will do what you are experiencing.

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