Distance between tapered pins
Distance between tapered pins
(OP)
Hello. I'm designing a shaft - hub joint with tapered pins. The problem is that the hub is quite short and I have to use two pins due to the high torque. Is there any reccomendation about the minimum distance between pins?
Thanks
Thanks





RE: Distance between tapered pins
What diameter of the pins?
What diameter of the (pulley) load flange?
What amount of load on the shaft-pulley?
How are you going to "fix" the tapered pins from being vibrated out of their holes?
RE: Distance between tapered pins
We use to tag weld all parts under vibration.
I don't know if there's some exact way to calculate the distance between pins. If not I would appreciate some general reccomendations (like the pin diameter should be from 0,2 to 0,3 the shaft diameter or distance between bolts 2,5 times the bolt diameter). Is there something like this for tapered pins?
Thanks in advance.
RE: Distance between tapered pins
What is the advantage of this horrible setup over a taperlock or something you'd find in a catalog?
Can you sketch it?
Anyway it is a nice little FEA problem.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Distance between tapered pins
RE: Distance between tapered pins
Can you put the pins at 90 degrees?
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Distance between tapered pins
Depending on your exact Dowel Pin, Shaft OD and Hub ID, the distance between centres will be governed by your maximum peek torque input load. The shaft can be analysed as a stress concentration between holes, classical equations are in Roark's. I would prefer to do a FEA model on that, then check the output based on the classical model. You should be within 3% error.
Hope this helps.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Distance between tapered pins
RE: Distance between tapered pins
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Distance between tapered pins
The second pin driven will in all likelihood take all the load.
So you might as well just design a single pin connection.
RE: Distance between tapered pins
NX 7.5
Teamcenter 8
RE: Distance between tapered pins
Regards,
Mike
RE: Distance between tapered pins
RE: Distance between tapered pins
Thanks for you kind words SnTMan & ManoloGalarraga. I believe this is the whole purpose of the forum, to make it a learning experience and capture from others on a particular problem.
Good luck with the design.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada