Todays Project - What did you do today?

[Rickabilly]

(01-03-2013, 10:07 PM)f350ca Wrote:

While many folks will look at these photos and think "New fangled engineering" why bother?

this is a very similar system to how many old english car axle flanges are held together, one that I can quote for sure is the MGB with the addition of a spline for security against the relatively high torque loadings on a drive axle flange, and the use of split tapered bushes on power transmission parts is almost the starting point nowadays coming into widespread use with the "Taper-lok" many years ago not to mention tapered mounting and dismounting sleeves for bearings. but the system needs special machining of the bore of the pulleys or couplings.

"New" technology (not much is really new, but to my knowledge it hasn't been in widespread use for very long) is the "Tollok" mounting and locking system, I suppose there are other brands about but I have used these, they use a parallel shaft and bore in the pulley, coupling or bearing and the Tollok part has it's own internal and external tapers that when tightened cause the bush's parallel bore to shrink while the parallel OD expands, they hold a exceptional amount of torque with no need for keys, furthermore they hold exceptional runout tolerances as well, often so good that it would be hard to get an old school Taper-lok to come in as well.
javascript:openpopup_27b5('http://www.techdrives.co.uk/Multimedia/Mechanical%20locking%20bushes/tollok-locking-assemblies.pdf')
Best Regards
Rick