Planet Minis

LoudFastUgly · 03-04-2009, 12:36 AM

There are all kinds of taper bearing sets on Ebay etc. The cost of shipping is always hilarious, especially for Canadians. The quality of the part is most likely suspect. As most of us already know, bearings are readily available from most industrial suppliers (Yes, even in Canada).

So I ask;

Could someone please measure the appropriate taper bearings for the steering head in a Z50A? Generally the # of the bearing is on the races / cup and cone which would be of tremendous help as well.

Thanks again,

Rob.

muxster · 03-05-2009, 01:25 PM

Amazing how easy it is to get answers sometimes..

If I had those bearings I would measure for you.

FastMC · 03-05-2009, 02:20 PM

I have a set at home. If you still need the size, I'll post tonight.

muxster · 03-05-2009, 02:46 PM

Good Job! You know you can get at Pep Boys, Trac Auto etc.
I spent 38.00
oh well....Im good at wasting money

Day 4 = No Cigs!

LoudFastUgly · 03-05-2009, 03:57 PM

Quote:

Originally Posted by FastMC

I have a set at home. If you still need the size, I'll post tonight.

That'd be greatly appreciated. This is something that the entire forum can benefit from; Get the sizes (or the #s on the bearing races) and I'll get a number from SKF so we can all enjoy quality bearing sets for 1/2 price!

dirtbkr188 · 03-05-2009, 06:17 PM

I'll check a set that I have here, as well. If I can't get a number, I can get the dimensions and go from there. I do know the I.D. of the lower bearing is 24mm and the I.D. of the upper bearing is 22.5mm.

FastMC · 03-05-2009, 09:01 PM

Upper = 22.5H-41H
Lower = 24H-41H

muxster · 03-05-2009, 09:28 PM

Big Ups for posting this.
what does the nut look like that tightens down over the top race and bearing? I cant use the loose ball one that I have can I?

Mux

FastMC · 03-06-2009, 12:23 AM

Quote:

Originally Posted by muxster

Big Ups for posting this.
what does the nut look like that tightens down over the top race and bearing? I cant use the loose ball one that I have can I?

Mux

It looks like this:

Yes you can use the original threaded adjusting nut....Sorry...Had to.

stevec · 03-06-2009, 01:56 AM

Quote:

Originally Posted by FastMC

Upper = 22.5H-41H
Lower = 24H-41H

225H/41H-Steering bearings for motorcycle-Automotive Bearings-KML Bearing Catalogue

24H/41H-Steering bearings for motorcycle-Automotive Bearings-KML Bearing Catalogue

Isn't it the same bearings for XR/CRF50 ?

dirtbkr188 · 03-06-2009, 07:05 AM

Adding to what stevec found, the US distributor is in Pottstown, PA., and 3 distributors located in Canada. Click HERE

muxster · 03-06-2009, 11:43 AM

Once again....EXCELLENT INFORMATION!!!

It's all about saving money when possible!

LoudFastUgly · 03-06-2009, 04:52 PM

Quote:

Originally Posted by FastMC

Upper = 22.5H-41H
Lower = 24H-41H

THAT'S what I'm talkin about!

Thanks to FastMC, dirtbiker188 & PM. for helping to keep the mini bike experience affordable!

LoudFastUgly · 03-06-2009, 04:57 PM

Quote:

Originally Posted by stevec

225H/41H-Steering bearings for motorcycle-Automotive Bearings-KML Bearing Catalogue

24H/41H-Steering bearings for motorcycle-Automotive Bearings-KML Bearing Catalogue

Isn't it the same bearings for XR/CRF50 ?

Yes, CT70 too

RSAmerica · 03-13-2009, 08:44 AM

I have some questions, which parts on the drawing will the bearings replace and is the stack-up height the same? If the stack-up height is not the same how do you deal with it?

Thanks
David

RSAmerica · 03-13-2009, 09:02 AM

Here's the Drawing:

dirtbkr188 · 03-13-2009, 02:35 PM

I've never replaced the steering stem neck bearings on a hardtail frame before, but, in the pic below, the parts left would be all you would need to reinstall the tapered bearings, once you've removed the old outer races, and installed the new ones. If that isn't correct, someone from here who has done it on a hardtail frame will speak up, I'm sure.

muxster · 03-13-2009, 03:35 PM

On m y ct 70 I had to cut the flange off of the lock nut with dust cover. Basically had to remove the dust cover completely. That is with after market triple tree though.

Z · 03-13-2009, 04:17 PM

Quote:

Originally Posted by muxster

On m y ct 70 I had to cut the flange off of the lock nut with dust cover. Basically had to remove the dust cover completely. That is with after market triple tree though.

You shouldn't have to remove the dust cover.

Was your Thai stem toos short to run the dust cover? Are you sure the races are seated correctly? That doesn't seem right to me at all.

03-04-2009, 12:36 AM	#1 (permalink)
LoudFastUgly 2nd Gear Member Join Date: Aug 2008 Location: GTA, Ontario, Canada Posts: 383	Z50A Steering Head Taper Bearings There are all kinds of taper bearing sets on Ebay etc. The cost of shipping is always hilarious, especially for Canadians. The quality of the part is most likely suspect. As most of us already know, bearings are readily available from most industrial suppliers (Yes, even in Canada). So I ask; Could someone please measure the appropriate taper bearings for the steering head in a Z50A? Generally the # of the bearing is on the races / cup and cone which would be of tremendous help as well. Thanks again, Rob.

03-05-2009, 01:25 PM	#2 (permalink)
muxster 2nd Gear Member Join Date: Sep 2008 Location: Redondo Beach, Ca. Posts: 471 My Mood:	Re: Z50A Steering Head Taper Bearings Amazing how easy it is to get answers sometimes.. If I had those bearings I would measure for you.

03-05-2009, 02:20 PM	#3 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,072 My Mood:	Re: Z50A Steering Head Taper Bearings I have a set at home. If you still need the size, I'll post tonight.

03-05-2009, 02:46 PM	#4 (permalink)
muxster 2nd Gear Member Join Date: Sep 2008 Location: Redondo Beach, Ca. Posts: 471 My Mood:	Re: Z50A Steering Head Taper Bearings Good Job! You know you can get at Pep Boys, Trac Auto etc. I spent 38.00 oh well....Im good at wasting money Day 4 = No Cigs!

03-05-2009, 06:17 PM	#6 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,972	Re: Z50A Steering Head Taper Bearings I'll check a set that I have here, as well. If I can't get a number, I can get the dimensions and go from there. I do know the I.D. of the lower bearing is 24mm and the I.D. of the upper bearing is 22.5mm.

03-05-2009, 09:01 PM	#7 (permalink)
FastMC Sporting the Merkin Join Date: Mar 2004 Location: boston area Posts: 5,072 My Mood:	Re: Z50A Steering Head Taper Bearings Upper = 22.5H-41H Lower = 24H-41H

03-05-2009, 09:28 PM	#8 (permalink)
muxster 2nd Gear Member Join Date: Sep 2008 Location: Redondo Beach, Ca. Posts: 471 My Mood:	Re: Z50A Steering Head Taper Bearings Big Ups for posting this. what does the nut look like that tightens down over the top race and bearing? I cant use the loose ball one that I have can I? Mux

03-06-2009, 07:05 AM	#11 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,972	Re: Z50A Steering Head Taper Bearings Adding to what stevec found, the US distributor is in Pottstown, PA., and 3 distributors located in Canada. Click HERE

03-06-2009, 11:43 AM	#12 (permalink)
muxster 2nd Gear Member Join Date: Sep 2008 Location: Redondo Beach, Ca. Posts: 471 My Mood:	Re: Z50A Steering Head Taper Bearings Once again....EXCELLENT INFORMATION!!! It's all about saving money when possible!

03-13-2009, 08:44 AM	#15 (permalink)
RSAmerica 1st Gear Member Join Date: Dec 2005 Location: NJ Posts: 118	Re: Z50A Steering Head Taper Bearings I have some questions, which parts on the drawing will the bearings replace and is the stack-up height the same? If the stack-up height is not the same how do you deal with it? Thanks David Last edited by RSAmerica; 03-13-2009 at 09:02 AM.

03-13-2009, 09:02 AM	#16 (permalink)
RSAmerica 1st Gear Member Join Date: Dec 2005 Location: NJ Posts: 118	Re: Z50A Steering Head Taper Bearings Here's the Drawing: Attached Thumbnails

03-13-2009, 02:35 PM	#17 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,972	Re: Z50A Steering Head Taper Bearings I've never replaced the steering stem neck bearings on a hardtail frame before, but, in the pic below, the parts left would be all you would need to reinstall the tapered bearings, once you've removed the old outer races, and installed the new ones. If that isn't correct, someone from here who has done it on a hardtail frame will speak up, I'm sure.

03-13-2009, 03:35 PM	#18 (permalink)
muxster 2nd Gear Member Join Date: Sep 2008 Location: Redondo Beach, Ca. Posts: 471 My Mood:	Re: Z50A Steering Head Taper Bearings On m y ct 70 I had to cut the flange off of the lock nut with dust cover. Basically had to remove the dust cover completely. That is with after market triple tree though.

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