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Delrin® Application Sheet
Bikers Enjoy the Ride Longer
®
with Delrin E-bike Gears
Reliable gears made to last
Delrin acetal homopolymer resin—one of the most crystalline
engineering thermoplastics available—gives you the ability to
design lightweight yet durable high-quality e-bike parts that deliver
on performance promises.
Source: DuPont
Delrin is the leading choice of engineering polymer
for demanding gear applications
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
12,000
E-bike designers choose Delrin because it:
In addition to making durable parts at higher production rates,
with Delrin you can count on consistent performance and
supply stability.
Plus, our technical knowledge and processing support can help you
design dimensionally accurate, rounder gears of the highest quality.
Cycles to failure, 1000s
• Works when other plastics would fail
• Offers more design flexibility and freedom
• Has proven high quality performance
• Lowers part cost
9,700,000
10,000
8,000
6,000
4,000
2,500,000
2,000
High viscosity acetal copolymer
Delrin® 100CPE
Test standard: ASTM D671 80°C, 220 kg/cm2, 30Hz
Source: DuPont
Delrin® 100CPE, 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® RA100CPE NCO10.
100%
Mechanical properties retention after
five passes of 100% regrind.
Property retention [%]
Delrin® RA100CPE e-bike gears help
reduce greenhouse gas emissions
Virgin resin
Source: DuPont
1st
2nd
Melt flow rate
Tensile modulus
3rd
4th
5th
Notched charpy impact
Sustainably sourced
Delrin® RA100CPE, a high viscosity, low emission acetal
homopolymer grade produced from certified sustainable sources.
Tensile modulus
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.
Notched charpy
impact strength
(23°C)
100%
80%
60%
40%
20%
0%
Tensile strength
at yield
Abiotic
depletion
potential
Nominal strain
at break
Global warming
potential
Delrin® 100CPE
Delrin® RA100CPE Renewable Attributed
Source: DuPont
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® 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.
Optimize design
for Delrin
POM part
Convert to
Delrin®
Renewable
Attributed
** Tons
CO2 saved
Delrin®
Renewable
Attributed
part
Source: DuPont
To learn more, contact your Delrin representative
or visit Delrin.com.
* Data on POM from Plastics Europe. Data for Delrin and Delrin® Renewable
Attributed from three panel peer reviewed LCA. Assumed redesign weight
savings is 10%.
** Exact figures can be shared under NDA.
Delrin® is an industry-leading premium industrial polymer business. Grounded in strong innovation, Delrin is a category creator with a longstanding
reputation for quality, reliability, supply and product performance. The iconic Delrin brand, coupled with proprietary technology and deep application
expertise make us a leader in the high-end engineering polymer market. Delrin has exciting growth prospects from exposure to automation,
actuation, healthcare, mobility and consumer applications.
Copyright 2023 Delrin®
Form No. HMC1123