Delrin: Difference between revisions
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(Created page with "Category:Construction Category:Steam Locomotive Parts == Bearings == [https://www.chaski.org/homemachinist/viewtopic.php?f=8&t=105365 Bill Shields wrote]: : Delrin...") |
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: Delrin AF is a combination of 10% to 25% oriented PTFE fluorocarbon fibers which are uniformly dispersed in Delrin acetal resin. This thermoplastic combination produces a product that possesses the strength, toughness, dimensional stability and fabrication economy approaching that of Delrin with the added properties of Teflon, the world's most slippery solid material. | : Delrin AF is a combination of 10% to 25% oriented PTFE fluorocarbon fibers which are uniformly dispersed in Delrin acetal resin. This thermoplastic combination produces a product that possesses the strength, toughness, dimensional stability and fabrication economy approaching that of Delrin with the added properties of Teflon, the world's most slippery solid material. | ||
Note: Soft steel or stainless steel, as well as all non-ferrous metals do not run well with plastic bearings, even those with a so called "self-lubricating" filler. Metallic bearing surfaces mating with plastic bearings should be hardened, and preferably polished, steel. | |||
== See Also == | == See Also == | ||
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* [http://www.dupont.com/content/dam/dupont/products-and-services/plastics-polymers-and-resins/thermoplastics/documents/General%20Design%20Principles/General%20Design%20Principles%20for%20Bearings.pdf Delrin/Zytel - General Design Principles for Bearings (PDF)] | * [http://www.dupont.com/content/dam/dupont/products-and-services/plastics-polymers-and-resins/thermoplastics/documents/General%20Design%20Principles/General%20Design%20Principles%20for%20Bearings.pdf Delrin/Zytel - General Design Principles for Bearings (PDF)] | ||
* [https://www.chaski.org/homemachinist/viewtopic.php?f=8&t=105365 "Delrin and Journals", <i>Chaski.org</i>] | * [https://www.chaski.org/homemachinist/viewtopic.php?f=8&t=105365 "Delrin and Journals", <i>Chaski.org</i>] | ||
* [http://www.chaski.org/homemachinist/viewtopic.php?f=8&t=104189 "DELRIN AF rod bearings clearance", <i>chaski.org</i>] | |||
Latest revision as of 10:02, 30 June 2017
Bearings
- Delrin AF will out live all of us put together in either main or rod service unless someone puts a torch to it. The only drawback to it is that you cannot Loctite it in place, so us 'progressive steamers' have to decide which modern material to use: Delrin AF or Loctite -> not both.
From Polymer Plastics Company, LC:
- What is Delrin AF?
- Delrin AF is a combination of 10% to 25% oriented PTFE fluorocarbon fibers which are uniformly dispersed in Delrin acetal resin. This thermoplastic combination produces a product that possesses the strength, toughness, dimensional stability and fabrication economy approaching that of Delrin with the added properties of Teflon, the world's most slippery solid material.
Note: Soft steel or stainless steel, as well as all non-ferrous metals do not run well with plastic bearings, even those with a so called "self-lubricating" filler. Metallic bearing surfaces mating with plastic bearings should be hardened, and preferably polished, steel.