@WildfoxFabrication
I worked at a tire shop for a couple years, I remember one time I popped open a big truck tire and the entire thing was FULL of balance beads. The customer was complaining about the truck pulling to the right and a severe vibration at high speeds. It probably had three gallons of balance beads. That was an interesting conversation with him
@GrippySockVacation99871
All my years of working on cars and I’ve never seen the inside of a tire while driving, even if you’re not a mechanic or car enthusiast this video is SWEET!
@ProjectFarm
I've always wanted to know if balancing beads work and how they work! Thank you!!
@jimsanders4412
The engineers who figure out tire construction materials & methods are brilliant!! Watching what a tire goes through has given me a whole new level of respect.😄
@Kgthrow
Screw the beads, just seeing how the tire reacts to driving is cool and the flexing while turning is mind blowing.
@1D10CRACY
I became a firm believer in them the first time I used them in my RV tires. I have split rings on one of my vintage RV's and I couldn't keep the weights from flipping off. Because they are split rings, they have tubes. Dyna beads makes a tube friendly bead that you send through the valve stem. The first time I used them I was stunned at this voodoo magic! Great Video BTW!
@randomdestructn
Complaining about other drivers while hooning through city areas on destroyed tire(s) with cell phone in hand. Excellent.
@talltom1129
If nothing else, visually this is one of the most interesting videos I've seen in a long while!
@GlutenEruption
They work because the tire is rotating around its *center of mass*. If the tire has a heavy spot, the center of mass is going to be offset towards it, Meaning even though the heavy spot itself wants to be flung outward from a static reference frame, from the rotating reference frame of the tire, the heavy spot is actually staying closer to the center and the light spot is being flung outwards the farthest. The beads, which are free to move and not a connected to the tire at all only move via centripetal force of the tire trying to pull them back to the center, and they'll collect in the high spot which is the light spot.
@pettertaillon6402
Probably 70 percent of heavy truck tires are balanced with beads. I worked 11 years in a shop with "tire" in it's name. If you would have poured a second bag of beads in your tire, it would have spun up at zero on the balancer. I have spun tires on the balancer, corrected with weights, and driven the truck. I then went back to the shop, added slightly more beads by weight than I used to balance the tire, stripped off the weights, and drove again. EVERY TIME I did this, (like 10 or 12 times), the truck was smoother with the beads. Mind you, the steering wheel ( I always did this to left front) Kind of "chugged" until the tire had been at speed for 10 or 15 seconds or so. Then it was as smooth as road force imbalance could let it be. After my research, we built the cost of beads into the price of all front tires on 19.5 inch rims and larger. All of our medium and heavy duty customers kept coming back, saying "xxx"s tires are 20 bucks cheaper, but yours run better" I understand why it is counterintuitive, but I think the beads bounce off the heavy spots because they are moving faster away from the axle centerline than the light spots.This results in the beads "finding" the right position for the tire AT THAT MOMENT. Just my opinion, hope it helps.
@802Garage
Those moving shots inside the tire are just mesmerizing. The shot of the air leaving the valve stem was super cool too. Also really impressive that GoPro was still recording just fine. I definitely do not understand the science behind these beads, hahaha.
@mygiguser
Amazing how well they work. In India we are using rice instead. Works the same way, but you have to replace the rice at least once a year. But we have enough of it, and it isn't very expensive.
@Kx0195
I'm more impressed with the GoPro staying attached. Some serious adhesive.
@ohhhthatscool.6502
Mechanical Engineer here. First off, excellent work and video. I’m going to take a stab at explaining the balance bead functionality. First off, any spot on the wheel or tire that is rotating around the axis of rotation is experiencing centripetal force causing acceleration of mass toward that axis of rotation. The acceleration can be calculated as (V^2)/Radius where V is tangential velocity. It can alternatively be calculated as Radius*(omega^2) where omega is rotational velocity. Well, everyone has probably heard of Newton’s second law, i.e. the sum of the forces are equal to mass times Acceleration or F=MA in the direction of the resulting force if not equal to zero. If the mass of the tire isn’t perfectly distributed, then there isn’t equal mass on the opposite side of the tire to cancel out or equalize the sum of forces caused by the acceleration forces resulting from rotation. As rotational velocity increases, the resulting forces increase by square. A heavy spot will “pull” the entire rotating assembly (rim and tire) in that direction because M in the F=MA equation is larger on that side. The beads being free to move throughout the tire will “fall” back to the side with less mass, think falling back in your seat as a car accelerates. The beads being pushed to the side of the tire with less mass essentially balances the “tire”. I understand this stuff well, but may not be the best at explaining things, so please correct anything I missed.
@N4HHE
Briefly studied this in engineering school. For balance beads to work the tire has to spin out of concentric. Won’t give you consistent results on spin balancer because the wheel is held firm. 2oz out of balance nothing to brag about. Some have good luck with balance beads. For others when the wheel hits a bump it spins out of concentric, moving the beads, which then have to move back into place. A bump from the road followed by a bump from imbalance. And then there is the issue of having to rebalance every time the wheel starts rolling. Some beads are sticky or use static electricity to stay in contact with the tire. That I know, OTR trucks simply do not balance any but possibly the steering tires. And use weights. Good old fashioned balancing works. There is a reason your new car doesn’t come from the factory with balance beads.
@themissourimadman
I run beads in all my truck tires, I've never had a smoother ride out of tires over 35 inchs. I've heard horror stories about Milestar Patagonia's being incredibly hard to balance but I've been through two sets of 38's on my Jeep and the beads work perfectly.
@DPRKSupremeLeaderKim
This concept seemed to have worked better than I would have imagined. Pretty cool content
@Lando_P1
I’ve eaten a couple spoonfuls of these before my recent gymnastics competitions with AMAZING results! I’m off to nationals next month and hope to get a sponsor.
@austinaubinoe
I gotta say, this is one of the coolest tire videos I have ever seen in my life.
@robotics_and_stuff