Ametek
Ametek Commutator End Bracket - Motor 117507
Ametek Commutator End Bracket - Motor 117507
SKU:20-6980
Low stock: 3 left
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Ametek Commutator End Brack...
$25.99
Product details
Commutator end bracket for the Ametek Lamb motor 117507, part 20-6980. It is the casting that closes the commutator end of the motor and carries the bearing supporting that end of the armature shaft.
Motors of this type get rebuilt rather than replaced, and this is one of the parts a rebuild often condemns. The bearing seat wears oval, or the bracket cracks around a through-bolt, and from then on the armature runs slightly off center. What you hear is a growl that rises with speed and a motor that gets hot; what follows is brush and commutator wear at several times the normal rate.
Fit it with a fresh bearing while the motor is apart, and read the brushes at the same time, since they will tell you whether the shaft has been running true.