Bonding of Electric Motors
Increasingly, magnets used in electric motors are adhesive-bonded rather than using conventional mechanical joining methods.
What do Electric Motors Bonding Adhesives do?
Electric motors are becoming increasingly compact, powerful, and efficient, especially in automotive and industrial applications. Adhesives play a critical role in enabling these advancements by replacing traditional mechanical fasteners and improving performance, reliability, and manufacturability.
Using adhesives gives the advantage of evenly distributing stresses (rather than concentrating them on the mechanical joint), reducing vibration noise, increasing corrosion protection, and eliminating of component damage during the joining process.
DELO-ML anaerobic adhesives offer excellent thermal stability up to 200°C, excellent chemical resistance, tension-equalising properties, and an increased gap-filling capability over mechanical joints. Additionally, using a dual-cured anaerobic adhesive offers fast light-fixation on the visible part of the bond.
Key Features of DELO-ML
- One-part anaerobic-curing adhesives
- Cure in the presence of metal and the absence of oxygen
- Excellent thermal & chemical resistance
- Dual-curing option to “freeze” the visible part of the adhesive
- Flexible, impact-resistant and tension-equalising
Electric Motors Bonding Adhesives Resources
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Strongest Adhesives for Electric Motors
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Adhesives and Encapsulants for Automotive Batteries
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DELOLUX 20 Series Area Curing Lamps Brochure
Download
Why Use Adhesives in Electric Motors?
- Automation-Friendly: Supports high-speed, repeatable application in production lines
- Stress Distribution: Adhesives distribute loads evenly, unlike mechanical joints that concentrate stress
- No Magnetic Interference: Unlike screws or rivets, adhesives do not disrupt magnetic fields
- Vibration Damping: Reduces noise and mechanical fatigue
- Corrosion Protection: Seals out moisture and contaminants
Key Applications
- Magnet Bonding: Permanent magnets are bonded to housings, rotors, or embedded within rotors using DELO adhesives. This ensures secure placement and high torque transmission
- Housing Sealing: Adhesives provide robust sealing between stator and housing components
- Sensor & Busbar Fixation: Ensures electrical and mechanical stability of auxiliary components
- Winding Protection: Encapsulation and fixation of windings for thermal and mechanical protection
Performance Highlights
- Temperature resistance: up to +200°C
- Chemical resistance: oils, coolants, and cleaning agents
- Mechanical durability: shock, vibration, and thermal cycling
- Suitable for: automotive powertrains, industrial pumps, e-mobility systems
Got a Question About Electric Motors Bonding Adhesives?
Whether you’re developing a new product or refining an existing process, Inseto’s team of experts is here to help.
From selecting the right light curing adhesive to optimising your curing process, we provide technical guidance, documentation, and samples to support your application needs.
Knowledge Base Articles
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Adhesives for Electric Motors (IKB-090)
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Dual Cured Adhesives (IKB-012)
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Basic Adhesive Types (IKB-041)
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How to Choose the Right Adhesive (IKB-035)
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All Things Considered (IKB-042)
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Explanation of Low Pressure Plasma Cleaning (IKB-014)
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Related Products
Further Information
Applications
Mechanical Engineering, Metal Bonding, Metal Sealing and Protection
Industry Segments
Automotive, Industrial, Electronics, Transport, Marine, Consumer
Delo Website
Region
Available from Inseto in the United Kingdom & Ireland
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