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Model Forum / Radio Controlled / Land Models / September 2005savage 10x16x5mm bearings stink
And make sure that you email HPI and tell them how inferior they are... Tell them to make an optional outer diff housing that will hold a bigger bearing that wont blowout every other weekend! (like 10x19x5mm) The AvidRC bearings in the same size stink too! Darnit I want a CNC machine!................... RRRRRRRRRRRGGGGGGGGGGGHHHHHHHHHHHHHHHHH > And make sure that you email HPI and tell them how inferior they are... > Tell them to make an optional outer diff housing that will hold a bigger [quoted text clipped - 3 lines] > Darnit I want a CNC machine!................... > RRRRRRRRRRRGGGGGGGGGGGHHHHHHHHHHHHHHHHH Your blowing the bearings that sit between the diff and bulkheads?? Just normal driving?? Damn, I would have thought the bearings at the wheel hubs would have been the first to go, considering they would have more load on them... I personally haven't had a bearing that size let go, plenty of 1:10 scale on road's though. I wonder if the bearings from an 1/8th scale Inferno are the same size cause those bearings are the best bearings I have ever used in RC... I'm keen to check it out now! Cheers Dre Yes, not only me, but many others as well...stupid oddball size bearing that hardly anyone carries... It's so thin it's no wonder they blowout..heck the balls inside the bearing are teeny tiny little friction makers that last no time... I got rid of my T-Maxx for stupid junk happening like this all the time... Throw money at it and it breaks..over and over... I forsee in a not so distant future of me not even owning a Monster Truck if this crap keeps up. I have to say that buggies rule! > > And make sure that you email HPI and tell them how inferior they are... > > Tell them to make an optional outer diff housing that will hold a bigger [quoted text clipped - 15 lines] > > Cheers Dre > Yes, not only me, but many others as well...stupid oddball size bearing > that [quoted text clipped - 8 lines] > this crap keeps up. > I have to say that buggies rule! I got a sad sort of chuckle out of this post bud, mostly because I feel the same way! What did it take out when it blew? Mine lunched the entire diff + case last weekend when it went. I feel your pain, having play-time ruined by an inferior part. Mine lasted 3+ gallons, but I hosed em' with Tri-Flow Teflon lube before and after each run, which might have helped lengthen their life. My playtime was cut short this weekend by the bud's T-Maxx pooping out (pull starter on wasp .18 broke). He ordered a Sullivan Tiger Drive to prevent that from ever happening again. We've been alternating weekends for who's truck is gunna take a crap........................next week is my turn.....................arrrgh. I'm one paycheck away from grabbing another vehicle to keep as a backup, so when one of ours craps out we don't have to pack up and head home with our heads hung low. My choices are: 1. Another Savage, probably a SS 4.6 2. Ofna Ravager 3. Sportwerks Mayhem Truggy 4. Kyosho Inferno 7.5 5. Cen Genesis Doc > > Yes, not only me, but many others as well...stupid oddball size bearing > > that [quoted text clipped - 33 lines] > > Doc E-maxx/E-zilla :) But then I'm biased! So looks like we all managed to break something on the w/e, good work! Cheers Dre >> Yes, not only me, but many others as well...stupid oddball size bearing >> that [quoted text clipped - 32 lines] > 4. Kyosho Inferno 7.5 > 5. Cen Genesis Whichever you choose - good lord don't let it be the Genesis...  SignatureDan >> I'm one paycheck away from grabbing another vehicle to keep as a backup, >> so when one of ours craps out we don't have to pack up and head home with [quoted text clipped - 7 lines] > > Whichever you choose - good lord don't let it be the Genesis... It won't be. I've done some research into them and have read nothing good about em'. You have a personal horror story with the Gen? Doc >>> I'm one paycheck away from grabbing another vehicle to keep as a backup, >>> so when one of ours craps out we don't have to pack up and head home [quoted text clipped - 10 lines] > It won't be. I've done some research into them and have read nothing good > about em'. You have a personal horror story with the Gen? I saw one get broken in. It would have been funny if it wasn't s expensive, just because it was that ridiculous. You shoulda seem the damage after its first big jump - fair enough, it did roll a couple of times - but nothing that a Sav wouldn't just laugh at. SignatureDan > I saw one get broken in. It would have been funny if it wasn't s > expensive, just because it was that ridiculous. You shoulda seem the > damage after its first big jump - fair enough, it did roll a couple of > times - but nothing that a Sav wouldn't just laugh at. Damn thing is just too heavy I think. 21 lbs is the factory weight IIRC. Too much for plastic to handle IMO. The allure of the Gen to me was that it is HUGE, and has a HUGE motor. I have heard that due to it's large weight, the truck is underpowered, even with the 5HP .46 in there. I'm going to grab another Savage. Likely a used one off E-Bay. Watching a few that end tonite around 8pm EST, currently the high bidder on one of em'. It's just too good of a truck, and HPI has treated me very well so far per way of tech issues and warranty claims. The sent me over $100 in parts without even asking for proof of purchase just a few weeks back. Doc >> And make sure that you email HPI and tell them how inferior they are... >> Tell them to make an optional outer diff housing that will hold a bigger [quoted text clipped - 18 lines] > > Cheers Dre The only bearings i've ever had let go are clutch bell bearings on my 1/8th buggy. I suspect with the same bearings continuously going, there is some other problem that you need to find out... SignatureDan > And make sure that you email HPI and tell them how inferior they are... > Tell them to make an optional outer diff housing that will hold a bigger [quoted text clipped - 3 lines] > Darnit I want a CNC machine!................... > RRRRRRRRRRRGGGGGGGGGGGHHHHHHHHHHHHHHHHH So I checked the Inferno bearings and they are bigger, 8x16x5mm so a lot bigger balls... That probably explains the fact that I have never ever damaged one, and my Inferno 7.5 gets a KANING in the gravel, the rears get absolutely flogged in those conditions... Anyway, thought someone might like to know. Cheers Dre Actually, the Savage differentials do use (2) of these size common (8x16x5mm) per diff (in the center around the pinion) and (2) oddball (10x16x5mm) for the sides... > > And make sure that you email HPI and tell them how inferior they are... > > Tell them to make an optional outer diff housing that will hold a bigger [quoted text clipped - 12 lines] > > Cheers Dre > Actually, the Savage differentials do use (2) of these size common > (8x16x5mm) per diff (in the center around the pinion) and (2) oddball > (10x16x5mm) for the sides... <snip> Yep, thats right. The reason the Savage bearings are smaller (well thinner anyway) is because the output yoke runs inside the inner race, in the Inferno's the yoke is much thinner. I looked further last night into my manuals and its possible that the Inferno diffs may fit inside the savage diff carriers. The Inferno's use shims to set the gear mesh so its possible that it'll all fit. I'm certainly going to find out (prolly wont be before the w/e though). If they do fit, thats a perfect solution. They are both 1/8 scale after all... Cheers Dre I've considered this as well..as the Thunder Tiger EB4 diffs use standard 8x16x5 throughout as well... (have several extras lying around) Would just have to check the differences between the buggy and Savage in the pinion and main diff gear ratios. If worst comes to worst I will definately try this... I have several bearings coming to test first....I'm thinking the best bet will be the BocaBearings ChromeSteel Sheilded in a 10x16x5...(a hefty $5.75 per bearing though)..if these fail prematurely,I am going to find whoever makes the outer diff cases/gearbox holder in aluminum (preferably 7075) and see if the bearing outer carriers/seats can be machined to accept a larger bearing....... > > Actually, the Savage differentials do use (2) of these size common > > (8x16x5mm) per diff (in the center around the pinion) and (2) oddball [quoted text clipped - 12 lines] > > Cheers Dre > I've considered this as well..as the Thunder Tiger EB4 diffs use standard > 8x16x5 throughout as well... [quoted text clipped - 8 lines] > see if the bearing outer carriers/seats can be machined to accept a larger > bearing....... <snip> Can you actually get bigger OD bearings like this? The ChromeSteel sounds like they could be good, but at that price, I might check out the Inferno diffs first :) I'm keen to find out, so I'm going to start pulling the front of the Savage apart tonight, the front shocks are allready missing from it as I am putting new oil in them. The Inferno's dont take as long to replace the diffs, they are designed for racing! I will post results here... Cheers Dre Yes, a 10x19x5 is an easy size to aquire, as are basically any larger OD bearing..much more common than the oddball 10x16x5... Yet another option I thought of tonight, was to have someone machine lathe the ring gear and my aluminum diff cup down to 8mm from 10mm (pending strength/thickness tolerance) so it would simply accept a 8x16x5mm bearing... ..waiting on results... =) > Can you actually get bigger OD bearings like this? The ChromeSteel sounds > like they could be good, but at that price, I might check out the Inferno [quoted text clipped - 8 lines] > > Cheers Dre > Yes, a 10x19x5 is an easy size to aquire, as are basically any larger OD > bearing..much more common than the oddball 10x16x5... [quoted text clipped - 4 lines] > > ..waiting on results... =) <snip> Good luck with it, but I wouldn't hold my breath, I would say there wont be enough metal left to make the yoke strong enough, it'd prolly split right where the hole is for the locking pin, as thats where I've broken them in the past, from that hole up to one of the slots for the dogbone.. The 10x19x5 idea I like though, but I cant picture a bulkhead atm so I dont know how much plastic there is around there. Still though, we have 3 possible solutions atm, all pending more investigation :) this is fun! Cheers Dre |
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