FYI, In the late 60's and early 70's there were roller cranks in racing Porsche's and another company made some for early VW's to but the cost was prohibitive. Back then they were about 7-8 hundred dollars when a standard new crank was 40-50. Today I imagine it would be 6-7 thousand or more. Al;so the case required heavy modifications. I don't think anyone makes them anymore. John In a message dated 8/11/2020 12:47:09 Mountain Standard Time, krnet@list.krnet.org writes: Ken - My Rotec R3600 has roller crank bearings as most radial engines do, but I can't think of any horizontally opposed aircraft engines including VW-based designs that do not have plain bearings. It would be interesting to find out - Anybody on the list know of any A/C engines in common use with roller cranks?
Thanks Chris On 8/11/2020 10:34 AM, Ken Henderson via KRnet wrote: > I do find that bikes have a lot in common with aircraft, one case being the > complete roller bearing crankshaft assembly present in Harley-Davidson > motorcycles of any year since the 20's at least. _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
