

Delrin Gears for E-bikes
AS E-BIKE motors become more powerful and consumers demand smarter, quieter, and more sustainable mobility, material selection is critical to meeting performance and environmental goals. Among engineering plastics, Delrin® stands out as the industry benchmark for high-performance plastic gears – delivering strength, durability, and sustainability in one versatile material.
The Delrin product family sets the benchmark for high-performance plastic gears. The polyacetal homopolymer offers good toughness at low temperatures and high mechanical strength and rigidity. Additionally, the materials are characterised by high fatigue resistance and dimensional stability, good electrical insulation properties and excellent resistance to moisture, fuels, solvents and many other neutral chemicals. Delrin acetal homopolymer resin – one of the most crystalline engineering thermoplastics available – enables lightweight designs with durable high-quality parts that deliver on performance.
Thanks to its unique combination of high fatigue lifetime with low weight, noise, and wear properties compared to metal, it helps ensure a quiet and smooth driving experience.
Leading choice engineering polymer for demanding gear applications
E-bike designers choose Delrin because it:
• Works when other plastics would fail
• Offers more design flexibility and freedom
• Has proven high-quality performance
• Lowers part cost
In addition to making durable parts at higher production rates, you can count on consistent performance and supply stability. Plus, their technical knowledge and processing support can help one design dimensionally accurate, rounder gears of the highest quality.
Delrin is ideal for high-performance e-bike gears because of its:
• High strength and stiffness without fillers
• Low wear and friction for less maintenance
• Low noise for smooth operation
• Long-life fatigue performance
Delrin® 1 00CPE, a high-viscosity acetal homopolymer, can significantly extend gear service life compared with alternative materials. A Renewable Attributed version of this grade is now also available: Delrin® RA 1 00CPE NCO10
Delrin® RA 1 00CPE e-bike gears help reduce greenhouse gas emissions:
Delrin is helping consumers achieve smarter, healthier and better living. Manufactured in a facility that is powered by renewable electricity, and with its base polymer produced using 100% bio-feedstock from waste in accordance with ISCC mass balance certification, gears made with Delrin® Renewable Attributed help e-bike manufacturers meet their sustainability goals.
Delrin® Renewable Attributed:
Up to 75% lower carbon footprint and up to 57% reduced use of fossil resources vs. fossil-based Delrin. Delrin® Renewable Attributed not only has a significantly lower carbon footprint and lower abiotic depletion potential but also offers the potential (if and where infrastructure exists) to be up to 100% recycled, making it a good candidate for closed-loop business models.
Sustainably sourced
Delrin® RA 1 00CPE, a high viscosity, low emission acetal-homopolymer grade produced from certified sustainable sources. Planning on Delrin® Renewable Attributed from the early phases of a project can result in significant CO2 savings throughout the lifetime of the application with tangible benefits to end customers and the environment.
Delrin® and Delrin® Renewable Attributed are helping manufacturers and consumers move toward smarter, healthier, and better living – without compromising the performance that high-powered e-bike motors demand.
• The Delrin materials are supplied by Aerontec (which is now part of the international Biesterfeld group, www.aerontec.co.za