NEW Product
AEGIS™ SGR uKIT
Bearing Protection Ring with
Universal Mounting Brackets
The new AEGIS™ Shaft Grounding Ring Kit with universal mounting brackets allows universal mounting options to fit almost any motor design in the NEMA frames from 56 to 449T. The AEGIS™ SGR uKIT includes:
• AEGIS™ Bearing Protection Ring designed for the motor’s NEMA “u” dimension - shaft diameter
• Four mounting bracket styles and hardware to adapt the AEGIS™ ring to virtually any end bracket
• Screw on or AEGIS™ Conductive Epoxy Adhesive mounting capable (Epoxy EP2400 sold separately)
• Fits over slingers, seals or shaft shoulders
PROBLEM
Without an AEGIS™ Bearing Protection Ring, induced shaft voltages cause destructive bearing currents that can lead to catastrophic “fluting” damage, decrease bearing lubrication life, and premature motor failure.
AEGIS™ SGR - Electrical Bearing Damage Protection™
Shaft Voltages
SOLUTION
The AEGIS™ Bearing Protection Ring dramatically extends motor service life by safely channeling harmful VFD induced shaft voltages away from the motor’s bearings to ground.
Learn more about protecting motors from VFD-induced bearing damage at:
www.est-aegis.com
Patented Technology
No Shaft Voltages
AEGIS™ SGR UNIVERSAL BRACKETS - TECHNICAL DATA
AEGIS™ SGR uKit Includes:
(1) AEGIS™ SGR Bearing Protection Ring
(4) universal brackets - Style 1
(4) universal brackets - Style 2 (reversible)
(4) universal brackets - Style 3
(4) universal brackets - Style 4 (reversible)
(4) 5-40 x 3/8” flat head screws
(4) 6-32 x 3/8” socket head cap screws
(4) #6 split lock washers
(4) #6 flat washers
5/64” allen wrench
7/64” allen wrench
Motor with 3 hole bracket pattern
Motor with 4 hole bracket pattern
Tools required for installation:
#36 drill
#6-32 tap
Fine grit emery cloth/sand paper
CS015 AEGIS™ Colloidal Silver Shaft Coating (recommended)
Tools for Conductive Epoxy Installation
EP2400 AEGIS Conductive Epoxy
Dremel tool for removing paint on motor end bracket
Heat gun to expedite curing time of conductive epoxy
Universal Bracket
Style 2A
Shaft
Min Circle
Max Circle
0.625”
3.700"
5.375"
0.875”
3.950"
5.625"
1.125”
4.200"
5.875"
1.375”
4.450"
6.125"
1.625’
4.700"
6.375"
1.875”
4.950"
6.625"
2.125”
5.200"
6.875"
2.375”
5.450"
7.125"
2.875”
5.950"
7.625"
3.375”
6.450"
8.125"
Universal Bracket
Style 2B
Shaft
Min Circle
Max Circle
0.625”
4.575"
5.375"
0.875”
4.825"
5.625"
1.125”
5.075"
5.875"
1.375”
5.325"
6.125"
1.625’
5.575"
6.375"
1.875”
5.825"
6.625"
2.125”
6.075"
6.875"
2.375”
6.325"
7.125"
2.875”
6.825"
7.625"
3.375”
7.325"
8.125"
Universal Bracket
Style 1
Shaft
Min Circle
Max Circle
0.625”
2.400”
3.200”
0.875”
2.650”
3.450”
1.125”
2.900”
3.700”
1.375”
3.150”
3.950”
1.625’
3.400”
4.200”
1.875”
3.650”
4.450”
2.125”
3.900”
4.700”
2.375”
4.150”
4.950”
2.875”
4.650”
5.450”
3.375”
5.150”
5.950”
Mounting bolt circle is the same for 3 or 4 brackets
Style 2A and 2B is the same
bracket (it is reversible)
AEGIS™ SGR UNIVERSAL BRACKETS - TECHNICAL DATA
Installation Guide:
1. Shaft must be clean & free of any coatings, paint, or other nonconductive material.
2. AEGIS™ SGR should not operate over a keyway. If SGR will operate over a keyway, fill keyway with a fast-curing epoxy putty (such as Devcon epoxy putty) in the area of contact.
3. Select the bracket size based on the clearance needed from the end bracket/slinger/shaft shoulder. Choose either a 3 hole or 4 hole bracket pattern. Attach brackets to the AEGIS™ ring using the 5-40 x 3/8” flat head screws.
4. Install the AEGIS™ SGR so that the aluminum ring maintains an even clearance around the shaft. Conductive MicroFibers™ must be in contact with the conductive metal surface of the shaft. Mark your bracket locations.
5. Optional To increase the conductivity of the shaft we recommend applying a light coat of the AEGIS™ Colloidal Silver Shaft Coating PN CS015 to the shaft area where the AEGIS™ microfibers are in contact with the motor shaft. Apply evenly all around the shaft.
6. Prepare Motor End Bracket for installation with screws:
a. Drill (3 or 4) holes using a #36 drill. Avoid drilling into bearing.
b. Depth of hole should be 1/4”
c. Tap each hole with a #6-32 tap
d. Install the uKIT and secure to the motor with the hardware provided. The bolts provide the path to ground. Do not use Loctite© or any other non-conductive material to secure the screws.
7. Easy Option Conductive Epoxy Installation (AEGIS™ Conductive Epoxy EP2400 sold separately):
a. Remove paint on the motor end bracket where the AEGIS™ uKIT brackets will be attached. These areas must be clean & free of any coatings, paint, or other nonconductive material.
b. Prepare conductive epoxy per package directions
c. Apply the epoxy to the universal brackets
d. Install the uKIT. Hold the uKIT in place until epoxy is firmly holding. Allow epoxy to cure for 4 hrs at or above 75°F. For quickest curing time, use a heat gun to heat epoxy for 10 minutes, then allow to cool.
Wrong
Right
Universal Bracket
Style 4B
Shaft
Min Circle
Max Circle
0.625”
4.575"
5.375"
0.875”
4.825"
5.625"
1.125”
5.075"
5.875"
1.375”
5.325"
6.125"
1.625’
5.575"
6.375"
1.875”
5.825"
6.625"
2.125”
6.075"
6.875"
2.375”
6.325"
7.125"
2.875”
6.825"
7.625"
3.375”
7.325"
8.125"
Universal Bracket
Style 4A
Shaft
Min Circle
Max Circle
0.625”
3.700"
5.375"
0.875”
3.950"
5.625"
1.125”
4.200"
5.875"
1.375”
4.450"
6.125"
1.625’
4.700"
6.375"
1.875”
4.950"
6.625"
2.125”
5.200"
6.875"
2.375”
5.450"
7.125"
2.875”
5.950"
7.625"
3.375”
6.450"
8.125"
Universal Bracket
Style 3
Shaft
Min Circle
Max Circle
0.625”
2.450"
4.325"
0.875”
2.700"
4.575"
1.125”
2.950"
4.825"
1.375”
3.200"
5.075"
1.625’
3.450"
5.325"
1.875”
3.700"
5.575"
2.125”
3.950"
5.825"
2.375”
4.200"
6.075"
2.875”
4.700"
6.575"
3.375”
5.200"
7.075"
Style 4A and 4B is the same
bracket (it is reversible)
uKIT Catalog Number
Motor shaft diameter “u”
NEMA Frame
SGR-0.625-UKIT
0.625”
56
SGR-0.875-UKIT
0.875”
143T, 145T
SGR-1.125-UKIT
1.125”
182T, 184T
SGR-1.375-UKIT
1.375”
213T, 215T
SGR-1.625-UKIT
1.625”
254T, 256T
SGR-1.875-UKIT
1.875”
284T, 286T, 324TS, 326TS, 364TS, 365TS
SGR-2.125-UKIT
2.125”
324T, 326T, 404TS, 405TS
SGR-2.375-UKIT
2.375”
364T, 365T, 444TS, 445TS, 447TS, 449TS
SGR-2.875-UKIT
2.875”
404T, 405T,
SGR-3.375-UKIT
3.375”
444T, 445T, 447T, 449T
31 Winterbrook Road
Mechanic Falls, Maine 04256 USA
Tel.: 866-738-1857
Fax: 207-998-5143
www.est-aegis.com
Optional
EP2400
AEGIS™ Conductive Epoxy
2-3 applications. Used to install AEGIS™ SGR without drilling and tapping into the motor end bell.
CS015
AEGIS™ Colloidal Silver Shaft Coating
20-25 applications based on a 3” shaft diameter. Used to improve the conductivity of the steel shaft surface. Apply to any VFD driven motor shaft prior to installing the AEGIS™ SGR.
Features and Benefits
• Protects both motor bearings and the bearings in attached equipment
• Channels harmful currents to ground
• Mounting brackets to fit virtually any motor
• Order the AEGIS SGR based on the motor “u” dimension, clears slinger or shaft shoulder.
• Improves system reliability; maintenance-free
• Flexible 3 or 4 bracket mounting design
31 Winterbrook Road
Mechanic Falls, Maine 04256 USA
Toll free: 866-738-1857
Tel.: 207-998-5140
Fax: 207-998-5143
www.est-aegis.com
EST-ITW Copyright © 2011 Form 270-1
