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![]()
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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![]()
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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