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Change Motor Bearings

How to disassemble an electric motor to check and replace the bearingsnote. Of 40 mm and a width 12 mm.


Change Motor Bearings

Bearing Replacements Pool Spa News

Put the heating rod through the middle of the second bearing and allow it to warm up.

Change motor bearings. Remove all pulleys gears and anything attached to shaft ends and support with one end up. Root cause for bearings problem usually such as rusty due to condensation processball in housing brokengrease was burn. I usually prefer to replace a motor with bad bearings not just because of the aforementioned extra costs involved with getting all the tools together and the labor but if you think about all the time the old motor has started run heated up cooled down the field windings will have dried out cracked the moisture proofing varnish it wont be able to take much more running during rainy.

Engine bearing replacement step by step 1. The dimension at 1432 should read 11816 inches not 01816 inches. Then loosen all other bearing cap nuts or bolts a half turn.

For electric motor failure causesthe common defected for mechanical part is bearingnormally 1 unit motor have a 2 pieces of bearing and type of bearing for induction motor is ball bearing full metal cover zz. You dont have to unwire the motor and sometimes dont even need to unmount it. Once its 50700f 20500c warmer take it off of the heater and slide it on the shaft on the other end of the motor.

Or remove end cap on the other end. Loosen cap screws and lift main bearing caps until free from block. Remove nuts or bolts holding end cap in place and carefully remove end cap and inspect bearings to determine best way to replace them.

Pull rotor out through stator and inspect. Use cap screws as a lever to free stubborn caps. Number each connecting rod and matching cap according to cylinder location.

And each main bearing cap as to its location in the block. Most motor bearings are metric. Be very careful not to damage the cap and mark it in some way to identify which journal it came off of.

Especially relevant before disassembly. A 6203 bearing has an inside dia of 17 mm an outside dia. Heat and install the second bearing on the other side of the motor.

Pump motors have metric and inch inside dia. Make sure the bearing presses firmly against the washer. Tap the cap lightly with a plastic hammer on one side then the other if it sticks.

Loosen the bearing cap nuts or bolts and remove the bearing cap and the lower half of the bearing. Sometimes it is easier to replace the motor bearings right in place.



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