Vertical Mount Electric Motors (P-Base & Flange Mounted Motors)
Vertical mount electric motors are designed for direct-drive applications where the motor shaft faces downward into the driven equipment — such as vertical turbine pumps, mixers, and cooling tower fans.
These motors feature reinforced bearings, high-thrust capacity, and sealed housings to handle the combined load of vertical operation and fluid thrust.
Available in P-Base, C-Face, and D-Flange mount styles, as well as ODP, TEFC, and Explosion-Proof (TEXP) enclosures, vertical motors are precision-built for reliability in demanding process environments.
What Is a Vertical Mount Motor?
A vertical motor is engineered with its shaft oriented vertically (typically facing downward) to drive equipment located directly below.
These motors include extra bearing support to absorb axial thrust and are often paired with pumps or agitators where load weight acts on the motor shaft.
✅ Key Advantages
Handles high axial thrust from vertical pump loads
Compact footprint for tight installations
Built for continuous-duty, high-moisture environments
Available in P-Base, C-Face, or D-Flange configurations
Optional inverter-duty (VFD compatible) windings
Long service life in pumping and mixing applications
Typical Specifications (Vertical Mount Motors)
Specification Typical Range / Option
Mounting Type Vertical (P-Base / C-Face / D-Flange)
Horsepower Range 3 – 200 HP
Speed (RPM) 900 / 1200 / 1800 / 3600
Enclosures ODP, TEFC, TEXP
Frame Sizes 213T – 449T
Voltage Options 208 / 230 / 460 / 575 V (3-Phase)
Materials Cast Iron, Stainless Steel, Fabricated Steel
Bearing Type High-thrust / Angular contact / Spherical roller
Service Factor 1.15 (Standard)
Each vertical motor is dynamically balanced and precision-assembled to ensure low vibration and optimal bearing alignment.
Common Applications for Vertical Motors
Deep-well and vertical turbine pumps
Cooling tower and condenser fan systems
Mixers, agitators, and stirrers
Process and wastewater treatment plants
HVAC and chiller systems
Chemical and food-processing facilities
Vertical motors are essential wherever space efficiency and vertical shaft load capacity are required.
Enclosure and Frame Options
Frame Materials:
Cast Iron – Rigid structure, ideal for heavy thrust and industrial duty.
Stainless Steel – Corrosion resistance for washdown or wet environments.
Fabricated Steel – Lighter, customizable for OEM and retrofits.
Mounting Configurations
P-Base (Pump Mount): Designed for vertical turbine pumps with high down-thrust bearings.
C-Face Vertical Mount: Flange-mounted for gearboxes or pump heads.
D-Flange Vertical Mount: Rear-bolt design for compact vertical applications.
Footless Vertical Mount: For OEM integration where base space is limited.
All vertical motors are available with Weather-Protected (WP1/WP2) options for outdoor service.
Request a Quote or Spec Sheet
Need a vertical mount motor for a pump, cooling tower, or agitator application?
Our engineering team can recommend models by mounting type, thrust rating, and enclosure to match your system requirements.
Request a Quote or Request Spec Sheet to receive detailed specifications, pricing, and availability from Brook Crompton, US Electric, and Worldwide Electric.