ultima pro center gear collar missing
Posted: Fri May 18, 2012 1:49 pm
Hello, I appear to be missing the center gear collar pictured below. Does anyone know of any substitutes to part UPR-2?
Coelacanth wrote:That's one of the parts that always holds up one of my Optima projects, it seems I can never find one when I need one.
Will these work? http://www.nitrohouse.com/4x8mm-Bushings-2_p_7259.htmlCoelacanth wrote:I think those are just 5x10mm wheel or gearbox bushings, not the same as the part you've circled in the first post...which is a much smaller 4 x 8mm white plastic cylinder. I think fireboy indeed sells it, but wants more than 3 bucks for it. Evidently he knows how uncommon they are...
EDIT: Here it is, this is the part you'd use if you didn't use bearings. 4 x 8mm bushing. If you use bearings, you need the smaller white plastic collar with the same dimensions. $13+ shipped just for that one collar. Ouch!
http://www.ebay.ca/itm/Center-Gear-Bushing-Kyosho-Optima-Ultima-Outrage-Sandmaster-Tracker-Outlaw-/251046309150?pt=Radio_Control_Parts_Accessories&hash=item3a7386ad1e
Possibly, if I can find a spare collar, I'll measure the depth and we'll know for sure. I'm not home now but might be able to get the measurement this weekend. The I.D. & O.D. of those linked collars are right, just the depth is what we need to know.lebowski770 wrote:Will these work? http://www.nitrohouse.com/4x8mm-Bushings-2_p_7259.htmlCoelacanth wrote:I think those are just 5x10mm wheel or gearbox bushings, not the same as the part you've circled in the first post...which is a much smaller 4 x 8mm white plastic cylinder. I think fireboy indeed sells it, but wants more than 3 bucks for it. Evidently he knows how uncommon they are...
EDIT: Here it is, this is the part you'd use if you didn't use bearings. 4 x 8mm bushing. If you use bearings, you need the smaller white plastic collar with the same dimensions. $13+ shipped just for that one collar. Ouch!
http://www.ebay.ca/itm/Center-Gear-Bushing-Kyosho-Optima-Ultima-Outrage-Sandmaster-Tracker-Outlaw-/251046309150?pt=Radio_Control_Parts_Accessories&hash=item3a7386ad1e
I'm very confused: how do you get 3 flanged bearings inthere? Please put up a picture.lebowski770 wrote:I replaced it with flanged bearings but center gear keeps popping off, for a total of 3 flanged gears on the center gear axle
Thanks Ed, can you please send me a link to the 8x4 fanged bearings you speak of?Mr. ED wrote:I'm very confused: how do you get 3 flanged bearings inthere? Please put up a picture.lebowski770 wrote:I replaced it with flanged bearings but center gear keeps popping off, for a total of 3 flanged gears on the center gear axle
The only thing that collar does is to prevent the standard bearings to slide further into the centergear.
Get rid of the M4 washers and put 2 8X4 flanged bearings in the spur: 1 on either side and a smaller washer and o-ring at the cover side