5-8% Slip Motors - NEMA Design D

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5-8% SLIP MOTORS - NEMA DESIGN D

5-8% slip motors are electrically designed with NEMA D torque characteristics providing high starting torque during startup. These motors are commonly used in crane and hoist, and elevator industries, and are available as both intermittent and continuous duty and in non-ventilated, open drip proof and fan cooled enclosures.

Design Type AC Induction; Nema Design D with 5-8% slip
Power Up to 300 HP
Speed 1800, 1200, 900, 600, 450, 300 rpm, custom speeds available
Voltage Up to 600 volts
Phase 3-Phase
Frequency 60 Hz
Stator M-19, M-36, or M-45 Electrical steel laminations. Other lamination grades are available upon request. Hand-wound to ensure balanced and symmetrical windings.
Rotor M-19, M-36, or M-45 Electrical steel laminations. Other lamination grades are available upon request. Die-cast aluminum, copper, or copper alloy rotor construction.

Frame NEMA frames 56 through 449, U & T frame configurations. Custom frames are also available, consult factory.
Construction Cast iron or Cast aluminum frame and end bells. Consult factory for Stainless Steel construction and/or custom design.
Enclosures Fan-Cooled (TEFC); Auxiliary Fan Cooled (A-TEFC); Non-Ventilated (TENV); Open Drip Proof (ODP).
Bearings Heavy-duty Steel ball, Ceramic ball, or Roller bearings to suit specific applications.
Bearing Lubrication Pre-Lubricated Sealed or Shielded; Re-Greasable Open
Balance Precision and/or NEMA Standard.
Insulation Class B, F, H and VPI.
Mounting Foot or Footless; Precision Bracket Mounting; Conventional C or D Flange; Metric DIN Flanges.
Accessories Temperature Sensors, Brakes, Vibration Mounts and Sensors.

Industries Served

Crane & Hoist

Military

Applications

Cranes

Hoists

Heavy Structures

Navy Service

Compressors
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