Regarding ND hubs: I've heard that the MX5 Cup cars replace theirs at the end of each season unless damage or wear requires more frequent replacement. The advice I've gotten for a regularly tracked ND is to replace the hubs every 2 seasons unless inspection reveals that they are worn prior to that. I have also heard that Supermiata is working on an aftermarket hub for the ND that will be released some time in 2024. Thanks for the video, great info as always.
I just replaced my rear wheel bearings on my NA and the axle nut took a 5 foot pipe on a breaker bar and a lot of heat to remove it so when you said it is stuck, steaked I laughed.
We've seen a wide range of stuckness on these rear axle nuts. Some loosened with just a quick blast of the air gun and others I'm pretty sure Mazda machined on to the stub shaft. Glad you got the job done!
The tire having play top to bottom and growling noise when cornering is typically sign of a bad wheel bearing. If the hub has no visual cracks then how do we know if it needs replaced and not just the wheel bearing?
We don't offer rear full hub replacements but we do offer rear bearings for the stock units flyinmiata.com/products/rear-wheel-bearing-1990-2005?_pos=8&_sid=17eef4a00&_ss=r. The rear hubs don't see as much stress as the front so they usually don't need to be upgraded to a better design.
@@FlyinMiataVideo isn't Keith losing a wheel at Laguna on the targa Miata a result of flange failure in the rear? Would be awesome if you guys carried the rear hubs too. You guys also mention that its easy to damage the old hub during bearing removal. Seems worth carrying or selling as a pair but I get if its not economical. Since the install is such a pain in the butt I could see a case for someone to do an upgraded unit just for better longevity and having to do the job less frequently.
@@benbunch4159 That's a good point but since it was his V8 car, it didn't have OE hubs in the rear. Miatahubs.com and Mazda Motorsports both sell rear hubs if you're looking for an upgrade.
@@benbunch4159 That failure was due to a badly designed aftermarket rear hub that was part of the V8 drivetrain. So yes, it was a flange failure, but it was far from a stock part.
I have a stock 91 NA with tw200 tyres. I want to do autocross/hillclimbs next year but nothing huge. Is it a good idea to clean out and repack my OE hubs? It seems easy enough. I can't imagine the 30+ year old grease is doing a great job anymore. Aftermarket hubs all seem rubbish quality, except the blueprint and Mazdasport you showed here.
If you think you can get the seals out and back in without damaging them, sure. Give it a try. I'd think that they aren't as pliable as they once were and you might cause a leak when you're done.
I use a standard power NBFL with standard suspension and mid-price tyres as a training car for people new to track days or who want to get quicker on track days. It has to have ABS for safety, and to avoid flat-spotted tyres and for legal reasons as I also use it on the road. Timken bearings only went 12 track days most recently before the loaded left hand corner became noisy and the steering wheel developed some play. On removal it seems the grease had turned to a watery fluid and departed the bearing. I've added 3" brakes cooling ducts which might help with the heat getting to the bearing. Do the blueprinted bearings you mention have better grease and better control over the size of the balls, thus making heat less of an issue?
The blue printed hubs start off as factory hubs, but they're carefully checked and packed with a high temperature grease. They'll cut down your failure rate dramatically but if you feel that you're pushing the car hard on the track, the Mazda Comp units are more suitable for that kind of abuse.
Regarding ND hubs: I've heard that the MX5 Cup cars replace theirs at the end of each season unless damage or wear requires more frequent replacement. The advice I've gotten for a regularly tracked ND is to replace the hubs every 2 seasons unless inspection reveals that they are worn prior to that. I have also heard that Supermiata is working on an aftermarket hub for the ND that will be released some time in 2024. Thanks for the video, great info as always.
Love you guys. Merry Christmas!
Great info! Thank you!
I just replaced my rear wheel bearings on my NA and the axle nut took a 5 foot pipe on a breaker bar and a lot of heat to remove it so when you said it is stuck, steaked I laughed.
We've seen a wide range of stuckness on these rear axle nuts. Some loosened with just a quick blast of the air gun and others I'm pretty sure Mazda machined on to the stub shaft. Glad you got the job done!
Did the mazdaspeed nb come with better hubs?
No same hubs
The tire having play top to bottom and growling noise when cornering is typically sign of a bad wheel bearing. If the hub has no visual cracks then how do we know if it needs replaced and not just the wheel bearing?
Trick question! The front wheel bearing in a Miata is part of the hub assembly.
@@FlyinMiataVideo Interesting. So even NC's require replacement hubs if the wheel bearing is the only part that goes bad?
Yes. We have an upgraded replacement for those.
flyinmiata.com/products/upgraded-front-wheel-hub-nc
Why don't you guys carry any rear hub parts? And what do you recommend and where do you buy yours. (NA)
We don't offer rear full hub replacements but we do offer rear bearings for the stock units flyinmiata.com/products/rear-wheel-bearing-1990-2005?_pos=8&_sid=17eef4a00&_ss=r.
The rear hubs don't see as much stress as the front so they usually don't need to be upgraded to a better design.
@@FlyinMiataVideo isn't Keith losing a wheel at Laguna on the targa Miata a result of flange failure in the rear? Would be awesome if you guys carried the rear hubs too. You guys also mention that its easy to damage the old hub during bearing removal. Seems worth carrying or selling as a pair but I get if its not economical.
Since the install is such a pain in the butt I could see a case for someone to do an upgraded unit just for better longevity and having to do the job less frequently.
@@benbunch4159 That's a good point but since it was his V8 car, it didn't have OE hubs in the rear. Miatahubs.com and Mazda Motorsports both sell rear hubs if you're looking for an upgrade.
@@benbunch4159 That failure was due to a badly designed aftermarket rear hub that was part of the V8 drivetrain. So yes, it was a flange failure, but it was far from a stock part.
I have a stock 91 NA with tw200 tyres. I want to do autocross/hillclimbs next year but nothing huge. Is it a good idea to clean out and repack my OE hubs? It seems easy enough. I can't imagine the 30+ year old grease is doing a great job anymore. Aftermarket hubs all seem rubbish quality, except the blueprint and Mazdasport you showed here.
If you think you can get the seals out and back in without damaging them, sure. Give it a try. I'd think that they aren't as pliable as they once were and you might cause a leak when you're done.
@@FlyinMiataVideo Good point, thank you! I wonder if I'll end up trawling through the NOK seals catalogue to find a replacement 😅
@@JamieBainbridge It's worth a try.
I use a standard power NBFL with standard suspension and mid-price tyres as a training car for people new to track days or who want to get quicker on track days. It has to have ABS for safety, and to avoid flat-spotted tyres and for legal reasons as I also use it on the road.
Timken bearings only went 12 track days most recently before the loaded left hand corner became noisy and the steering wheel developed some play. On removal it seems the grease had turned to a watery fluid and departed the bearing.
I've added 3" brakes cooling ducts which might help with the heat getting to the bearing.
Do the blueprinted bearings you mention have better grease and better control over the size of the balls, thus making heat less of an issue?
The blue printed hubs start off as factory hubs, but they're carefully checked and packed with a high temperature grease. They'll cut down your failure rate dramatically but if you feel that you're pushing the car hard on the track, the Mazda Comp units are more suitable for that kind of abuse.
y r u giving the short version in a technical video what type of people do you think watch these?
Do you still have any technical questions we can assist with?
I own one……I’ve heard no