Lamb Motor Lower Ball Beari...
$15.99
Product details
Sourced from Lamb's armature rebuild kit line, this is the lower ball bearing only, listed as part 70-7653 for a repair where the upper bearing does not also need replacing.
Vacuum motor bearings tend to announce their failure before the motor itself quits. Listen for a rising whine or a coarse grind that was not there before, or feel for a vibration through the housing that grows with run time. None of that wear stays contained. Once a bearing lets the armature shaft drift even slightly off center, the windings and commutator start taking damage a bearing alone never would have caused, and that repair costs considerably more than the bearing did.
Shops that pull a motor apart for one worn bearing often replace both while they are in there, since the upper and lower bearings see similar hours and similar loads, and the labor to get back in is the same either way. This part is cataloged against the Lamb armature kit family rather than a specific motor model number, so match it against the physical bearing pulled from the motor, or check the kit number stamped for the unit being serviced.
- Part: 70-7653
- Position: lower, Lamb armature kit
- Type: ball bearing
- Watch for: rising whine, grinding, or vibration felt through the motor housing
- Before ordering: match bore and outside diameter against the bearing removed, or the armature kit number for your motor