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Tag Archives: Yamaha

Home » Posts Tagged "Yamaha"
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15 Sep
New Product

Introducing the Tubeworks YXZ-4S Conversion Kit

  • September 18, 2018
  • By Shaun Defense
  • 4 SEAT, CONVERSION, SxS, TUBEWORKS, UTV, Yamaha, YXZ
  • Leave a comment
FOR IMMEDIATE RELEASETubeworks debuts ONLY four-seat CHASSIS for the Yamaha YXZ SXS at the 2108 Sand Sports Supershow New, affordable, aftermarket, solution adds two more to the fun supplied by the performance of Yamaha’s championship...

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18 Aug
New Product

The Yamaha YXZ Gear Reduction System is here! Watch the video.

  • February 19, 2018
  • By tubeworks
  • SxS, UTV, Yamaha, YXZ
If you have experience with the new Yamaha YXZ1000R, then you need to check out what we have for you! 33% gear reduction in all gears, new replacement 1st gear with 70% reduction and...

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  • We've got some exciting news that might interest a few of you out there in AWD-land. We just took a good look at the TW-IND10 front and rear diffs back from @jordanpellegrino after testing all year long and recently completing the Ridgecrest event this past weekend. Great job Jordan! We couldn't be happier with the how they look. EVERYTHING was in perfect working order, including the lock out unit on the front. NO signs of gear wear! This is the news we have been waiting for. Production will now proceed. @triton_eng @74weld @amsoilinc #NoLoadboltNeeded #Gearlife #AdvanceTheSport #TWIND10 #GearControl #IFS #IRS #DriveSideDiffs #Billet #Ceramic
  • NOSE BEARING FAILURE:  The conversation continues… SWIPE LEFT TO SEE WHAT WE FOUND We have validated the unstable movement of any pinion cassette assembly. This axial movement became evident during development of our Integrated Oil Pump and occurs on ALL supports on the market, including our own.  We were able to measure the directional movement of the front taper roller set; it is a PROBLEM. A taper roller bearing set can be wedged further and further into the cup with more force. Typically the "preload" on a pinion cassette bearing is approximately 0.005". WHAT DID WE MEASURE?  Our 2nd image shows a target hydraulic force resulting in 0.016" axial movement towards the nose bearing, at ROOM TEMP.  Every 0.001" growth in taper radius we see over 0.004" of additional axial movement. Now consider the outer race has a few thousands press fit into the support, making it slightly smaller. Thermal expansion from 70 to 250 degrees exceeds 0.005”. This allows the outer bearing race to over-expand and let the pinion travel even further.  The primary "Large" taper roller set backing the actual pinion gear, looses contact with it's race with only 0.005" of axial movement. Now the pinion is ONLY being controlled by the front yoke bearing and the nose bearing. Any heavy side load induces pinion angle error, potentially failing the nose bearing.  Additionally, if the gear moves in 0.010" + it enters mechanical gear binding, with no room for oil or backlash.  Image 1 the pinion has traveled far enough to tear off the nose bearing retainer.  HOW DOES THIS HAPPEN? On ALL rear high pinion applications, the pinion is pulling the ring gear to drive the vehicle forward. This is primarily loading the front bearing, unlike a low pinion config. The front  taper bearing is the furthest from the oil source and develops heat, causing a spiraling failure condition.  On low pinion configs. coast side acceleration events such as (landing off-throttle while the tires accelerate the drivetrain) producing the same thrust forces as a high pinion config. Part 1 of our solution is shown in the 3rd photo. 50% more hydraulic force is applied with 1/5 the axial movement @ 0.0025" #AdvanceTheSport
  • There are many reasons why every U-joint manafacture has a "MAXIMUM OPERATING SPEED". Safety being the number one reason. The loss of drive shaft stability points right back to a potential safety issue. Every TH400 transmission turns at a 1:1 ratio in 3rd gear. If you want to run your engine to 6500 RPM in 3rd gear with a high ratio ring and pinion like a 5.80 Your drive shaft is spinning 6500 RPM, 1500 rpm past the MAXIMUM RATED speed. If you underdrive the transmission 41% and use a 4.11 ring and pinion, you get the same 5.80 final drive ratio with a drive shaft spinning at 4600 RPM, plus a large margin of safety on U-joint capacity. #underdrives #servicelife #Proven

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