U-joints for 8mm shaft...

ST1100Y

Site Supporter
Joined
Dec 4, 2012
Messages
4,981
Age
59
Location
Vienna, AuSTria
Bike
ST1100Y, ST1100R
STOC #
637
Need to fix/improve my motorcycle lift...
On this China made thing the mechanism for actuating the open/lowering valve on the hydraulic jack sucks...
Already had to fix one bushing, attached to the valve-shaft on the jack body, but the rods connecting that to the pedal are really flimsy (the flexible joints consist of small tubes with cross-bored cotter pins... :roll: ... Excessive slack while actuating and one pin already sheared off while having a motorcycle lifted on the platform...)

Anyway, I already searched a number of RC-model stores but no joy...
I need two steel U-joints with 8mm bores on each end and a max length of aprox 40mm...

This part seems usable (the joint has to take quite some torque), but $ 52,- US a pop (ex P&P) is a little steep...
http://www.sdp-si.com/eStore/Catalog/PartNumber/A 5Q 8-D210

Found those Chinese made (same avail/listed on Alibaba)
http://www.amazon.com/BQLZR-Universal-Joint-Connection-Coupling/dp/B00JEYSX6G
but unsure about the quality, no torque ratings given, and the bore required for the cross bolt will weaken shaft- and bushing-ends...

Then those
http://www.ebay.com/itm/New-8-x-8mm-Diameter-Steering-Universal-Joint-Motor-Coupling-Screw/161045810613?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=35006&meid=151dbe5e44ba44dfaa111befa2cb2d74&pid=100005&rk=2&rkt=2&sd=250995567859
also China, doesn't tell if both worm-screws are included, nor info on max torque given...

So if anyone is aware of other sources...

TIA!
 
Top Bottom