What types of electric motor applications does The Gund Company provide insulation solutions for?

The Gund Company provides solutions for power utilization equipment and motor applications, including electric motors, and offers a variety of insulation component solutions for rotors and stators.

What are the main insulation components for electric motor rotors and stators?

For rotors: topsticks, wedges, pole collars, slot liners, turn-to-turn insulation, pole blocking, and lead clamps. For stators: topsticks, wedges, filler strips, phase separators, slot liners, tapes, tie cord, lead wire insulation, terminal boards, lead clamps, end winding support rings, end winding support blocks, felt, and end baffles.

What insulation materials and parts are used in DC motors and armatures?

DC stator insulation includes pole collars, turn-to-turn insulation, lead clamps, and blocking. DC armature insulation includes topsticks, wedges, slot filler, slot liners, felts, commutator mica segments, lead wire insulation, and banding tape.

What commutator insulation materials and components are available?

Commutator insulation components include Mica HD, mica V-rings, and binding tape.

What other motor insulation components does The Gund Company offer?

Other motor insulation components include elastomeric gaskets, terminal box gaskets, enclosure gaskets, O-rings, riser trays, convolute lead trays, washer and bushings, shaft seals, threaded rod, and insulated tubing.

What quality standards and engineering approach does The Gund Company use for motor insulation parts?

Custom-fabricated parts adhere to ISO 9001:2015 certified quality systems. The Gund Company employs a consultative engineering approach, collaborating closely with customers to identify optimal material choices and ensure engineered components that meet or exceed mechanical and electrical criteria for major OEMs.

What are some common rigid insulation materials used in electric motors?

Common rigid insulation materials include Mica M, G-3 (PF GC 201), G-9 (MF GC 201), Mica HD, G-11 (EP GC 203), GPO-3 (UP GM 203), G-10 (EP GC 201), GPO-1 (Class F, H, R; UP GM 201), C, CE, LE, PFCC 201/202/204, N155, N180, H755, EMD Grades, T160, N220, SG200, FR4 (EP GC 202), Side Ripple Spring, Top Ripple Spring, Semi-Conductive Laminate C109, MagNohl®, HST II, and PCGP-HT.

What are some common flexible insulation materials used in electric motors?

Common flexible insulation materials include Dacron/Mylar/Dacron (DMD), polyester PET film, Rag/Mylar (RMR), Nomex/Mylar/Nomex (NMN), Nomex® meta-aramid papers, epoxy coated Nomex®, G-Flex™ meta-aramid papers, vulcanized fibre, Kapton tape, and PTFE tape.

What are some common elastomeric materials used in motor insulation and sealing?

Common elastomeric materials include neoprene, cork-rubber, nitrile, EPDM, silicone, FKM (Viton®), butyl, and sponge.

Alternators (Back-up Generators)

reliable emergency electrical power

Alternators used in backup generators

Alternators used in backup generators provide reliable emergency electrical power when utility power is unavailable. They are commonly found in data centers, hospitals, telecommunications facilities, water treatment plants, manufacturing sites, and commercial buildings where continuous operation is critical. Alternators convert engine-driven mechanical energy into stable AC electrical power, ensuring essential systems remain operational during outages.

Market Segment	Why Backup Power is Critical	Common Applications
Data Centers	Prevent data loss and maintain uptime during utility outages	Servers, networking equipment, cloud infrastructure
Hospitals & Healthcare	Protect patient safety and meet emergency power requirements	Life-support equipment, operating rooms, imaging systems
Water & Wastewater Plants	Maintain public health and utility operations	Pumps, treatment systems, control equipment
Telecommunications	Ensure network continuity during power interruptions	Cell towers, switching centers, fiber optic hubs
Manufacturing Facilities	Reduce downtime and product loss	Production lines, process equipment, automation systems
Commercial Buildings	Support occupant safety and business continuity	Emergency lighting, elevators, HVAC, fire protection systems
Critical Infrastructure	Maintain essential public services	Airports, transportation hubs, government facilities
Oil & Gas Facilities	Support remote and mission-critical operations	Pumping stations, pipeline controls, offshore equipment
Utility Substations	Maintain grid reliability during outages	Station service power, protection relays, controls
Agriculture	Protect crops and livestock operations	Irrigation pumps, grain handling, livestock facilities

Alternator Rotor Insulation

Pole Collars
Tapes
Tie Cord
Pole Support blocking
Turn-to-turn insulation
Pole Ground Wall Insulation

Alternator Stator INSULATION

Topsticks
Wedges
Filler Strips
Phase Separators
Slot Liners
Tapes
Tie Cord
Lead Wire Insulation
Terminal Boards
Lead Clamps
End Winding Support Rings
End Winding Support Blocks
Felt
End Baffles

Insulation Materials in Motor Applications



Mica M	G-3, PF GC 201	G-9, MF GC 201
Mica HD	G-11, EP GC 203	GPO-3, UP GM 203
G-10, EP GC 201	Class F GPO-1, UP GM 201	Class H GPO-1, UP GM 201
C, CE, LE – PF CC 201, 202, 204/305	N155	N180
Class R GPO-1, UP GM 201	H755	EMD Grades
Top Ripple Spring	T160	N220
Side Ripple Spring	FR4, EP GC 202	SG200
Semi-Conductive Laminate: C109	MagNohl®	HST II
PCGP-HT
Click here to view additional material datasheets.

Flexible Insulation Materials in Motors

	Dacron®/Mylar®/Dacron® (DMD)	Polyester PET Film
	Rag/Mylar®/Rag (RMR)	Nomex®/Mylar®/Nomex® (NMN)
	Nomex® Meta-Aramid Papers	Epoxy Coated Nomex®
	G-Flex™ Meta-Aramid Papers	Vulcanized Fibre
	Kapton® tape	PTFE Tape
	Click here to view additional material datasheets.

Elastomeric Materials in Motors

	Neoprene	Cork-Rubber
	Nitrile	EPDM
	Silicone	FKM (Viton®)
	Butyl	Sponge
	Click here to view additional material datasheets.