The Ametek Lamb 117507-00 is a three-stage 7.2-inch tangential bypass motor for 120-volt equipment. It is the workhorse of the three-stage 7.2-inch group rather than the headline performer: roughly 130 inches of water lift and 94 CFM at the two-inch orifice for about 406 air watts, drawing no more than 12.7 amps. That combination is why machine builders keep specifying it. It fits a standard 120-volt circuit comfortably and still holds suction when the hose is loaded.
Use cases
- Central vacuum power units where the original three-stage motor is no longer available.
- Commercial canister and utility vacuums that need lift under restriction.
- Carpet and upholstery extraction machines built around a 7.2-inch three-stage motor.
- Car wash vacuum service where amp draw has to stay inside an existing circuit.
Specifications
- Ametek Lamb part number 117507-00
- Three stage, single speed
- 7.2-inch (183 mm) diameter
- 120 volts
- Tangential bypass discharge, open enclosure
- Double ball bearings
- Approximately 130 inches of water sealed lift
- 94 CFM at the two-inch orifice
- 406 air watts
- 12.7 amps maximum
- 21,425 RPM
- Air seal for added bearing protection
- All-position mounting, 40 C maximum ambient, intermittent duty
- Average carbon brush life around 700 hours for the 7.2-inch frame
- UL recognized and CSA certified
Choosing and fitting
117507 is sold in more than one build, distinguished by the suffix after the dash. The suffix is not cosmetic, so order the exact number stamped on the motor you are removing rather than assuming the family is interchangeable. Check the 7.2-inch diameter, overall height, bracket style and bolt pattern, and confirm the machine's circuit can carry 12.7 amps. Replace the mounting gasket with the motor; a hardened gasket quietly gives back sealed lift.
Frequently asked questions
What is the difference between 117507-00 and 117507-13?
Both are three-stage 7.2-inch 120-volt motors from the same family and share the same performance figures. The dash suffix identifies the specific build Ametek supplies to a given machine maker. Order the exact suffix stamped on your existing motor or listed in the machine's parts book.
How much current does it draw?
Up to 12.7 amps at 120 volts. That leaves useful headroom on a 15-amp branch circuit, which is part of why this motor is specified so widely in portable equipment.
What does 94 CFM at a two-inch orifice mean?
It is a measured point on the performance curve rather than free airflow. Testing through a fixed orifice puts the motor under a repeatable load, which makes the number comparable between motors. Real airflow at your tool will be lower once hose length and filters are in the path.
Is the air seal a replacement for filtration?
No. The air seal adds protection to the bearing area; it does not make the motor suitable for unfiltered or wet air. Keep the machine's filters serviced and follow the equipment maker's guidance on wet pickup.
Discount Cleaning Products is an authorized dealer for Ametek Lamb vacuum motors and stocks the brushes, gaskets and service parts that go with them. Our US-based team can help you match a replacement motor to the machine you already own.
