In the early eighties, I worked wit
In the early eighties, I worked wit
(OP)
In the early eighties, I worked with a prostock
motorcycle race team. During that time I got to see
the inner workings of the race world.The individuals
bikes that we worked on had there cranks sent to a company called Falicon, there forte is high revving cranks .
To make a long story short, has anyone taken a v-8 crank
and placed needle bearings at the main journals . Of course
the harmonics of balance would be critical.
motorcycle race team. During that time I got to see
the inner workings of the race world.The individuals
bikes that we worked on had there cranks sent to a company called Falicon, there forte is high revving cranks .
To make a long story short, has anyone taken a v-8 crank
and placed needle bearings at the main journals . Of course
the harmonics of balance would be critical.





RE: In the early eighties, I worked wit
The pro's and cons are
The crank must be pulled appart to replace the bearings, or a special split bearing shell must be used.
Rollers can survive with very poor lubrication, hence thair use in 2 stroke engines.
Roller bearings are expensive.
Roller bearings do not tollerate shock loadings as well as a plain bearing.
A well designed and lubricated plain adds very little to the total friction in an engine, so even large improvements here make little difference to the overal friction of the engine.
Plain bearings have less friction than most people think. Unfortunately I cannot find any hard data as it is 30 years since I looked into it last.
Regards
pat
RE: In the early eighties, I worked wit
BC
RE: In the early eighties, I worked wit
Shaun TiedeULTRADYNE Arl,TX(stiede@ev1.net)