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Fukudaco Aegis PRO High-Voltage and Medium to Large Capacity Motor Protection

Manufacturer: Fukudaco

Overview

Aegis® PRO provides an effective solution for bearing current issues in inverter motors. It prevents premature bearing damage, such as electrical discharge machining (EDM) and grease degradation. Designed for high-voltage motors and AC motors over 375 kW, as well as DC motors over 225 kW, Aegis® PRO ensures reliable protection.

For optimal performance, we also recommend shaft insulation on the non-drive end (opposite the Aegis® PRO Ring).

Applications

  • Bearing protection and lubrication degradation prevention for inverter motors (addressing electrical discharge machining and bearing current issues)
  • Servo motors and thyristor-controlled DC motors
  • Critical transportation equipment like trams and automated transit systems
  • Pumps, turbines, gearboxes, extruders, speed detectors, and more
  • Rolling mills and paper machines
  • Gantry cranes, belt conveyors, data center air conditioning, and other industrial applications

Features

  • Maintenance-free and long-lasting
  • Available in both one-piece and split versions, allowing installation even with couplings or pulleys attached
  • Compatible with various motor manufacturers as an optional feature
  • Widely adopted in diverse fields, including industrial motors, steam turbines, and electric vehicles
  • Access to experienced Aegis® installation partners (motor maintenance companies) for reliable support

Aegis® PRO Series

The Aegis® PRO Series is an advanced model of the Aegis® Ring, featuring six layers of conductive microfiber. Designed for high-voltage and medium to large-capacity motors, it provides superior protection for critical motors against bearing currents.

PROSL Ring (One-Piece)

Fukudaco

Secure the Aegis® PROSL Ring using the included M4 bolts.

Specifications:

  • Shaft Diameter: 63.5 to 400.0 mm
  • Outer Diameter: Shaft Diameter + [47.24] mm
  • Thickness: [15.88] mm
  • Included Items: Aegis® PROSL Ring, countersunk screws (M4x0.7x25mm), silver paint
  • Model Example: For a shaft diameter of 100.0mm, use model: PROSL-100.0-2

PROSL Ring (Split Type)

Fukudaco

Secure the Aegis® PROSL Ring using the included M4 bolts.

Specifications:

  • Shaft Diameter: 63.5 to 400.0 mm
  • Outer Diameter: Shaft Diameter + [47.24] mm
  • Thickness: [16.51] mm
  • Included Items: Aegis® PROSL Ring (split type), countersunk screws (M4x0.7x25mm), silver paint
  • Model Example: For a shaft diameter of 100.0mm, use model: PROSL-100.0-2FHA4

PROSLR Ring

The Aegis® PROSLR Ring with O-Ring is designed for harsh environments where dust, debris, and oil are frequently present. The O-Ring protects the conductive microfiber, minimizing the impact of contaminants.

Specifications:

  • Shaft Diameter: 63.5 to 400.0 mm
  • Outer Diameter: Shaft Diameter + [47.24] mm
  • Thickness: [16.51] mm
  • Included Items: Aegis® PROSLR Ring, countersunk screws (M4x0.7x25mm), silver paint
  • Model Example: For a shaft diameter of 100.0mm, use model: PROSLR-100.0-2

PROMAX Ring

The Aegis® PROMAX Ring is robustly designed for large machines, providing enhanced protection against bearing currents.

Specifications:

  • Shaft Diameter: 401 to 762 mm
  • Outer Diameter: Shaft Diameter + [76.2] mm
  • Thickness: [47.62] mm
  • Included Items: Aegis® PROMAX Ring, hex socket head screws (M8x1.25x50mm), silver paint
  • Model Example: For a shaft diameter of 450.0mm, use model: PROMAX-450.0-2

PROMR Ring

The Aegis® PROMR Ring is designed to ground the shaft while simultaneously monitoring shaft voltage. This product ensures reliable grounding with the Aegis® PROSL Ring while allowing continuous shaft voltage measurement through another Aegis® Ring fixed via an insulating plate.

Specifications:

  • Shaft Diameter: 63.5 to 400.0 mm
  • Outer Diameter: Shaft Diameter + [47.24] mm
  • Thickness: [33.2] mm
  • Included Items: Aegis® PROSL Ring, countersunk screws (M4x0.7x25mm), silver paint
  • Model Example: For a shaft diameter of 100.0mm, use model: PROMR-100.0-2

Universal Bracket BKT-PRO-2

The Universal Bracket BKT-PRO-2 allows for various mounting methods when the direct installation of the Aegis® PRO Ring onto the motor is not possible. This kit is ideal for situations where you need to avoid shaft keys, steps, or other obstacles like water-shedding plates. Note that the Aegis® PRO Ring is not included with this kit, so please order the Aegis® PRO Ring separately.

Specifications:

  • Model Number: BKT-PRO-2
  • Included Items:
    • PRO Series Universal Bracket
    • 12.7mm Spacer (4 pieces)
    • 25.4mm Spacer (4 pieces)
    • 38.1mm Spacer (4 pieces)
    • Hex socket head bolts (M8x35, M8x45, M8x60) – 4 pieces each
    • Washers (4 pieces)
    • Lock washers (4 pieces)

For detailed drawings or additional information, please contact us.

Silver Paint CS015

Recommended for all motors where Aegis® Rings are installed. It improves the conductivity of the shaft surface, further enhancing the effectiveness of the grounding ring.

  • Model Number: CS015 (Included with each Aegis® PRO Series ring)
  • Quantity: 15g (sufficient for approximately 20 applications on a 75mm shaft)
  • Storage: 6 months (store in a cool place; mix well before use if components have separated)
  • Caution: Use protective equipment when handling.

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