PDA

View Full Version : Wheel hub housing torque setting



YJP
01-18-2019, 01:43 AM
I'm getting my wheels powder coated and i was searching in the service manual for the torque settings of the the 5 bolts that hold the wheel hub housing but didn't see anything in the service manual.

Also can the snap rings be reused?





373369

Skully
01-19-2019, 06:52 AM
https://www.apriliaforum.com/forums/showthread.php?322410-RSV4-cush-drive-carrier-mounting-torque

NUMBER41
01-19-2019, 09:17 AM
11 ft-lbs. never had any issues. From a post long, long ago:


Small update here. Disassembled my rear wheel tonight. I've got quite a few maintenance/upgrade tasks planned as part of my 1 year maintenance: CRG RC2 levers, CF undertail, SAMCO Hoses/clamps, radiator & oil cooler guards, aluminum coolant manifold upgrade, plus oil/filter change and air filter clean. Anyway, after reading this sticky, figured I better disassemble the rear wheel to see what's going on. Lucky for me, I found this:
http://i1182.photobucket.com/albums/x443/WILLIAMSETHROBERTS/Mobile%20Uploads/image_zps5ef3ffcc.jpg

It's a 13' RSV4F with a VIN data plate saying it was assembled in June of 13. All of the bolts were tight and definitely had thread lock on them. So, to add something to this sticky: I tried torqueing the bolts to see how tight they were torqued, but the thread lock was screwing that up. So, I applied just enough CCW torque to each bolt to get it just started moving, then started re-torqueing each bolt. Checked all 10 of them this way and EVERY one of them was torqued to 15 nm (11 ft-lbs for those of us cursed to live in a country that doesn't use the metric system.) So, unbolted each one, cleaned, blue Loctite, and torqued back to 15 nm.

YJP
01-19-2019, 10:22 AM
https://www.apriliaforum.com/forums/showthread.php?322410-RSV4-cush-drive-carrier-mounting-torque


11 ft-lbs. never had any issues. From a post long, long ago:


Appreciate it!

plocky
01-19-2019, 05:00 PM
11 ft-lbs. never had any issues. From a post long, long ago:
That's fine for the forged wheels with 10 x M6 bolts, however in his pic is a cast wheel with 5 x M10 bolts, that according to the other thread (thanks Skully I was trying to find that) should be torqued to 50Nm.

NUMBER41
01-19-2019, 05:27 PM
True enough plocky. I didn't look that hard at the pic. Just knew I had addressed this issue before. Maybe someone else has done the same "semi-scientific" experiment that I did on the cast wheels with the M10 bolts that can speak more authoritatively than I? Or maybe he can do the same "experiment" himself, on his own wheels to figure out what the ballpark torque should be?

prettykin
01-22-2019, 06:19 PM
As I suspected, good thing you measured them.
Then 50Nm will be too much IMO. They will either strip the thread or snap off at 50Nm.

Going off the rear wheel diagram, the torque for the 5 M8 bolts that hold the brake disc on are 30Nm (22.13 lb ft) with loctite 243.

That's what I'd use, 30Nm with loctite 243.


I recently picked up a new RF, I put my torque wrench on the bolts and torque them in 1/2 increments starting from 10 lb/ft. None of the bolts budged until I got up to 21.5 - 22 lb/ ft. I re-torque the hub and sprocket bolts every time I take the rear wheel off.

plocky
01-22-2019, 11:39 PM
I recently picked up a new RF, I put my torque wrench on the bolts and torque them in 1/2 increments starting from 10 lb/ft. None of the bolts budged until I got up to 21.5 - 22 lb/ ft. I re-torque the hub and sprocket bolts every time I take the rear wheel off.
Umm! You have an RF which should have M6 hub bolts; I wouldn't do them to more than 15Nm (~11 ft lb).
Your rear sprocket nuts should be 50Nm (36.88 ft lb).

plocky
01-23-2019, 06:27 PM
I stand corrected, there M10 bolts.
Then it would be 50Nm (36.88 ft lb) with loctite 243 for M10s..

YJP
01-23-2019, 10:27 PM
Then it would be 50Nm (36.88 ft lb) with loctite 243 for M10s..

Yup torqued the bolts down this morning.

plocky
01-23-2019, 10:50 PM
Cool, so now we need pics & a review of the quality of the powder coating job. :)

YJP
01-24-2019, 05:08 PM
Cool, so now we need pics & a review of the quality of the powder coating job. :)

I take a few picks tomorrow once i get the wheel bearings and tires back on the rim.