C-Face Mount Electric Motors (NEMA C-Face Industrial Motors)
C-Face mount electric motors — also known as NEMA C-Face (B14 / B5) motors — feature a machined flange and pilot register for direct coupling to pumps, gearboxes, and other driven equipment.
This flange-mount design eliminates the need for base alignment, allowing for compact, precise, and vibration-free installations in OEM systems and industrial environments.
Available in ODP, TEFC, and Explosion-Proof (TEXP) enclosures, C-Face motors are manufactured to NEMA Premium® efficiency standards and support horsepower ratings from 1 HP to 200 HP.
What Is a C-Face Mount Motor?
A C-Face motor incorporates a machined face on the drive-end bell with a pilot diameter that centers the motor precisely on the driven equipment.
Mounting bolts pass through threaded holes on the motor face, creating a direct, rigid coupling that ensures perfect shaft alignment.
✅ Key Advantages
• Direct coupling eliminates belt or base alignment
• Compact, space-saving installation
• Ideal for pumps, gearboxes, and OEM assemblies
• Reduces vibration and bearing wear
• Compatible with vertical or horizontal mounting orientations
• Available with foot, footless, or flange-only bases
Typical Specifications (C-Face Mount Motors)
Specification Typical Range / Option
Mounting Type C-Face (NEMA B14 / B5)
Horsepower Range 1 – 200 HP
Speed (RPM) 900 / 1200 / 1800 / 3600
Enclosures ODP, TEFC, TEXP
Frame Sizes 56C – 449TC
Voltage Options 208 / 230 / 460 / 575 V (3-Phase)
Materials Cast Iron, Stainless Steel, Fabricated Steel
Service Factor 1.15 (Standard)
All C-Face motors are built to NEMA MG 1 and IEC 60072 dimensional standards for seamless interchangeability.
Common Applications for C-Face Motors
• Close-coupled centrifugal and booster pumps
• Gearboxes and speed reducers
• Compressors and blowers
• Mixers and agitators
• OEM process equipment
• Machine tools and conveyors
C-Face motors are especially valued in OEM manufacturing and modular process systems where compact design and consistent alignment are priorities.
Enclosure and Frame Options
Frame Materials:
• Cast Iron – Heavy-duty rigidity for vibration control.
• Stainless Steel – Corrosion-resistant for washdown and sanitary facilities.
• Fabricated Steel – Lightweight, adaptable for OEM systems.
Compatibility and Accessories
• Compatible with pump adapters, gear reducers, and brake kits
• Available with keyed shafts, stainless shafts, or hollow output shafts
• Optional footed or footless frames
• Fully compatible with VFD speed control systems
• Shaft seals and bearing protection for wet or dusty service
Request a Quote or Spec Sheet
Looking for a C-Face mount electric motor for a pump, gearbox, or OEM assembly?
Our team can specify the correct flange dimensions, frame size, enclosure, and voltage for your application.
Request a Quote or Request Spec Sheet to receive detailed specifications, pricing, and availability from Brook Crompton, US Electric, and Worldwide Electric.
Related Products
• Foot Mount Electric Motors →
• D-Flange Mount Electric Motors →
• Vertical Mount Electric Motors →