The Ametek Lamb 119414-00 is a two-stage 5.7-inch bypass vacuum motor for 120-volt equipment, and it is one of the most widely specified motors in commercial floor care. Two stages on a compact 5.7-inch frame give 84.3 inches of water lift and 94 CFM for 274 air watts while drawing well under 10 amps, which is why it turns up in so many wet/dry vacuums, extractors and utility machines where the housing has no room for a 7.2-inch motor.
Use cases
- Replacing a failed vacuum motor in a commercial wet/dry or utility vacuum.
- Servicing compact extraction and recovery machines built on a 5.7-inch motor bay.
- Repairing canister and box-style vacuums used in janitorial and restoration work.
- OEM builds needing a two-stage bypass motor with modest amp draw.
Specifications
- Ametek Lamb part number 119414-00
- Two stage, single speed
- 5.7-inch (145 mm) diameter
- 110 to 120 volts, 50/60 Hz
- Bypass fan system, peripheral discharge
- Double ball bearings
- Maximum sealed vacuum 84.3 inches of water
- Maximum airflow 94 CFM
- Maximum output 274 air watts
- 18,225 RPM
- Approximately 8 amps typical, 9.5 amps maximum
- Average carbon brush life around 500 hours for the 5.7-inch frame
Choosing and fitting
This motor is peripheral discharge rather than tangential, meaning cooling air leaves around the circumference of the fan case instead of through a side outlet. Housings are built around one or the other, so check which your machine expects before ordering. Distributor listings name a long list of compatible brands; treat those as a starting point and verify against the number on your existing motor, the 5.7-inch diameter, overall height, bracket style and bolt pattern. Replace the mounting gasket at the same time.
Frequently asked questions
What machines use the 119414-00?
Distributors list it as a service replacement across a range of commercial wet/dry and utility vacuum brands. Because those cross-reference lists are compiled by sellers rather than by the machine makers, confirm fitment against the number on your existing motor and its physical dimensions before ordering.
Peripheral or tangential discharge, does it matter?
It does. Peripheral discharge vents cooling air around the fan case; tangential discharge sends it out of a single side outlet. The machine's housing is designed for one path, and fitting the wrong one can trap heat or foul the airflow.
How does it compare with a 7.2-inch two-stage motor?
A 7.2-inch two-stage motor makes considerably more lift and airflow, but it is physically larger and draws more current. The 119414-00 exists for machines that need two-stage bypass performance in a 5.7-inch bay on a modest circuit.
How often should the brushes be checked?
Ametek publishes an average of roughly 500 hours of brush life for 5.7-inch motors. On a machine in daily service, inspect the brushes at least annually and replace them before they reach the wear limit to protect the commutator.
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.
