Tapered head bearings question

[sye]

Do you still use the lower dust seal and washer when fitting tapered head bearings? Just checking before I fit them and there's none in the kit and no destructions either. Thanks, Sye.

[Trigger]

If it is a Allballs, you fit the medium washer then the seal and then the bearing 

[sye]

QMP from DSS Graham? Two bearings and one washer is all there is...

[Rob62]

Yep.... no seal in that kit. The instructions mention a seal but only for the 400cc model iirc. Bit of a poor job in my opinion but hey ho.  Put plenty of grease on it and dont go out in the rain and it should be ok 

[sye]

I can easily return it and order a different make?

[sye]

I can get Pyramid ones supposedly made in Japan or All Balls. Unless anyone knows of a better choice?

[Nurse Julie]

All Balls but make sure the seal is included.

All balls part number....596955#WZJLPK, comes with both seals and all the washers etc.

[sye]

You can actually buy Koyo bearings but not as a kit. The top roller is an H264815 (26x48.5x15) and the lower is an H305014 (30x50x14) plus the washer is available too. Still no dust seal but I suppose I could use the Honda one. Only problem is that the Koyo ones work out at £40. Hmmm, is it worth the difference. 

[Trigger]

All Balls are made in China, you work out which is better

NTN, KOYO, and SKF all have factory's now in China. Honda licenced bearings are now made in China 

[sye]

All Balls are made in China, you work out which is better

NTN, KOYO, and SKF all have factory's now in China. Honda licenced bearings are now made in China 

There is nothing wrong with a lot of stuff that's made in China. It's the generic crap that you need to avoid. NTN, KOYO and SKF do manufacture some of their bearings in China but they are run and operated by Japanese management and QC is very high on the list. The quality of these bearings is at least equivalent to any bearing made in Japan.

The problem is the generic crap that's churned out and then branded by someone else. This stuff is usually very poor quality and will fail prematurely for sure. I don't know if All Balls own the factory, if it's made to their spec or it's generic crap. It's unlikely to be the latter I guess.

[Rob62]

I've used an all-balls kit on my ZZR1100 a few years ago, the bike weights a ton, but no problems at all with the bearings up to press...

The only problem with trying to use the original Honda dust seal is that the original outer race is recessed to accept it, but the replacement bearings are not... I will replace the DSS head bearing kit at a later date as the lack of a proper seal bothers me, but I was keen to keep moving during the build so I used it.

[sye]

Swapped it for an All Balls kit, now installed and looks fine, thanks everyone. 

[Moorey]

A while ago I was working at Holset engineering/ Cummins turbo's and was in their RD lab and there were a lot of turbo's in bits on a table. Talking to them they were Chinese copies of their turbo's, and I commented that no doubt they would be crap. The response was sadly not they were all bang on spec both on machining tolerances and material specs and about a third of the price.

[matthewmosse]

China is a massive place with multiple factories. Some produce absolute rubbish, some make good stuff. I have 12v quad bike winches I use for logging, one was £98 and has lasted years, only breakdowns are due to my ineptitude or abuse and it's pulled many tons of timber, enough to heat my house for 6 years and put a new roof on it, and build a wood shed. That's a lot of timber, we don't have oil or gas to back the wood burners up. That means the woodshed is a decent size too. The other Chinese winch looks very much like the first but cost half the price even 6 years later. It's broken several times despite careful handling. Opening it up to fix a bad connection I found about 6mm play in the rear bearing, - no wonder it sounded rough. Never done more than a minute of winning without a 10 minute cool down and only pulled about a years firewood. It's an interesting mix of good parts and flimsy plastic. I think the rear bushing of the motor was actually low grade plastic, I think a brass replacement may get turned up in my lathe.