Please visit us at following shows:

PROCESS EXPO.
  Oct. 15 ~ 17, 2007
  Booth # 6860,
  Las Vegas, NV

WEFTEC
  Oct. 15 ~ 17, 2007
  Booth # 4857
  Hall C
  San Diego, CA

National Ground Water Expo.
  Dec. 4 ~ 7, 2007
  Booth # 451
  Orlando, FL

Introduction to P Base Vertical Electrical Motor

By: Dennis Rimmel,       January 20, 2007

(For reference only, not for specification)

Contents:

History

P-Base Design Overview

VHS vs. VSS Thrust

Standard P-Base

Thrust

• VHS Hi Thrust (HT)
• VSS Medium Thrust (IL)
• VSS Normal Thrust (NT)

P-Flange Characteristics

CD Dimension

P-Base frame assignments

Thrust Bearings

• VHS HT – Angular Contact Bearing
• VHS HT – Spherical Roller Bearing
• VHS HT – Sliding Plate Bearing
• VHS HT – radial bearing load
• Bearing Rated Life
• Thrust bearing Up-Thrust
• No Load Running
• Minimum Required Down thrust
• 1. Angular contact bearings
• 2. Spherical roller bearings
• 3. Sliding plate bearings
• Lubrication
• End Play

Vertical Motor Resonance

• Reed critical Frequency
• Shaft Critical Frequency

• Top Coupling
• Locked Coupling
• Self Release Coupling
• Continuous Up Thrust

VSS Shaft

• VSS IL Flange and Shaft Runout
• 1. NEMA
• 2. IEEE 841

• Torque
• Efficiency
• Power Factor ( Full Load Current)

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