The Ametek Lamb 115950 is a two-stage vacuum motor built for 220 to 240 volt machines. Motors in this family power commercial wet and dry vacuums, carpet extractors and central vacuum units, and this one is bought as a direct-replacement wear item rather than as an upgrade. The two-stage fan assembly is the configuration chosen where sustained sealed lift matters more than raw airflow, which is exactly the case on a machine pulling through a long hose or a loaded recovery filter. Fitting a new motor is normally far cheaper than replacing the machine built around it, and on well-made commercial equipment the rest of the unit will outlive several motors.
Use Cases
- Restores suction in 220-240 volt commercial wet and dry vacuums after motor failure
- Rebuilds carpet extractors and recovery machines running on 240 volt single-phase supply
- Replaces the motor in export-market and industrial central vacuum power units
- Serves as a stocked spare for facilities running 240 volt cleaning equipment
- Powers material recovery equipment that needs steady sealed lift over long duty cycles
Specifications
- Blower stages: 2
- Body diameter: 7.2 in
- Overall height: 6-13/16 in
- Voltage: 240 V, 50/60 Hz, single phase
- Maximum current: 5.5 amps
- Bearings: ball bearings with air-sealed bearing protection
- Mounting: metal mounting brackets, all-position mounting
- Enclosure: open, intermittent duty, Class A insulation, no thermal protection
- Ambient rating: 40 degrees C
- Agency: UL Recognized E47185, CSA LR31393
Figures deliberately omitted
Published airflow, sealed lift and air watt figures for this part number disagree between distributor sources, and the discharge type is listed as peripheral by some sellers and tangential by others. Rather than pick a set and present it as fact, none of those figures are stated here. If any of them are critical to your build, contact us before ordering and we will try to confirm them against Ametek documentation.
Fits
No manufacturer machine compatibility list was found for this motor. Confirm the part number, body diameter, stage count, voltage and discharge orientation against the motor currently in your machine before ordering. Because the discharge type is disputed in published sources, checking the old motor physically is the only reliable method here.
Frequently asked questions
Why are the airflow and air watt figures not listed?
Because the published sources for this exact part number disagree with each other, and so does the listed discharge type. Rather than choose one set of numbers and present it as fact, they are left out. Confirming a specification you can rely on is more useful than a confident number that turns out to be wrong.
Can I run this motor on 120 volts?
No. It is wound for 220 to 240 volt operation. On 120 volts it would turn slowly and produce almost no useful suction. If your machine runs on North American household power you need the 120-volt equivalent instead.
What do air-sealed bearings add?
They add protection against dirt and moisture reaching the bearing races. In a vacuum motor the bearings are the second most common wear item after the carbon brushes, and keeping fine dust out of them is the difference between a motor that runs quietly for years and one that starts to whine early.
What does intermittent duty mean for this motor?
It means the motor is rated to run in cycles with cooling periods rather than continuously at full load indefinitely. There is no thermal protection built in, so on equipment that runs for long unbroken periods the machine itself needs to provide overload protection.
Discount Cleaning Products is an authorized dealer for Ametek Lamb vacuum motors and stocks replacement motors, carbon brushes and service parts for commercial and central vacuum equipment. Orders are supported by a US-based team that works with these motors every day, so if you are unsure which body diameter, stage count, discharge style or voltage your machine takes, ask before you order.