Question Inner Bearings Update on a 1980`s BigMax 2

[Bavaria]

Hallo from Bavaria.
Yesterday i work on my axles. The bronce bushings are in a bad Condition. I find Bearings how i can build on my max :.
YEL 206-104-2F from SKF

Have anyone problems with this in the past? The Bronce Bushing i will do out of the axle, before i fit the bearings there.
kind regards
Frank

[thebuggyman1]

IMG_1881.jpgThe biggest problem with the bronze bushings is that there is no means to grease them. When run dry, they will not last, but add some grease and they should outlast the axles outer bearings. Adding a grease zerk is very easy with the old hollow axles, just put it on the wheel flange and fill the whole axle with grease.

[Bavaria]

This is also a nice idea. Ho many hours are the Bronce Bushings work when they are new? I can work on a Lathe to make new Bushings and the hole in flange for the zerk.

[thebuggyman1]

Theoretically, if given grease often enough, the bushings would never wear out. But that won't happen. Realistically, the outer bearings seem to last around 200 hours, and I would think the bushings would outlast those. Any bearing supplier should be able to get you the bushings. Here in the U.S. they cost approx. $3 each, much cheaper than a bearing. The size to look for is 1" OD x 3/4" ID x 1" long McMaster-Carr

[Bavaria]

Hallo
Thank you for answering. The problem starts with mm and inch. I can buy here anything, when it is in mm. For Inch have to look a long time and anything is very expensive.
Is W103 the correct code for the outer bearings?
kind regards
Frank

[Noel Woods]

[ATTACH=CONFIG]9714[/ATTACH]The biggest problem with the bronze bushings is that there is no means to grease them. When run dry, they will not last, but add some grease and they should outlast the axles outer bearings. Adding a grease zerk is very easy with the old hollow axles, just put it on the wheel flange and fill the whole axle with grease.

Thats a very good idea with the hollow axles and the zerk. I have nearly 700 hours on a Max2 with the bronze inner bushings and they are still operational. I do push the grease gun extension right up to the bushing and shoot some grease as well as I can in there. I think I'll pirate Jim's idea because thats a more trick concept.

[chris davison]

Page 1129 and 1130 of the online mcmaster catalogue has the bushings you need. in mm it would be 25.4 od by 19mm id by 25.4 long. not familure with the 1" bearing you use but look at the pics in mcmaster. personally I would get rid of the bushings and go with a two hole flange bearing check ebay for them.

[Bavaria]

Thank you all for your Help. Then i will do so with the bronce bushings. I find the correct Name for the bearings. The Manufacture in Germany is SKF. The Code for the Bearing is YEL 206-104-2F
kind regards
Frank

[thebuggyman1]

The stock outer bearings are 62mm X 1.25". If the inch measurements are hard to find and expensive, you could try converting. If you have access to a lathe, you could just make new axles to accept a metric bearing inside and out. The old hollow steel max axles are made from a mild steel alloy, and are not the strongest. Most people blame this on the fact that they are hollow, but you really get very little strength from that center. You could make new axles from a good quality chro-moly alloy in a 30 or 32mm diameter (1 1/4" = 31.75 mm), whatever you could get the steel and bearings for cheaply. There are better alloys for the axles than the chro-moly, but I can't tell you what they are....maybe someone else here can.

I also like to run bearing extensions on the front axles if using the hollow ones. The extensions put an extra bearing farther out on the axle for additional support, and the front axles take more abuse than the others....they hit the stump or rock first.
IMG_0992.jpgIMG_0993.jpg


Edit: the code here for the bearings is 206-20
The 206 means 62mm outside and the -20 means 1 1/4" inside (or 20/16")

[Bavaria]

Hallo Buggyman
This parts you show on the two photos are nice. I have seen this in a other tread. They sait, it`s for using Tracks on a Max. I dont want go on a Trail. For me it is more a Classic Car. I will wash him, make him shine and sometimes, when the weather is high, drive a little bit in the forest on the small ways. I live in the mittle of nowhere with mutch freedom around me. But Germany is a very small Country with a lot of folks to life here. So you cant drive longer the 10 Minutes to see the first man starts to be angry about the noise from the max ore the smoke.
kind regards
Frank

[nairb35]

Baveria is about the size of the state of Wisconsin. We have same problem here too many people,and not enough public land to play on.

[Bavaria]

Hallo Nairb.
That is unbelivable for me. I whas never in my life in America. In my Phantasie it is the biggest Country in the world. Go out of a big city like New York and no one else from Horizon to Horizon. Sometimes i look to America via Google Earth. There so many places with no House around for 100 Km. One Time in the future i will come to America. I will drive from coast to coast with a rented MobilHome like VW CamperVan ore so.
Do the 6x6 drive legal on a public Road in America?

[marlow]

Interesting the bearing extensions you use do you have any dimensional details on them. Most specifically how far they standoff from the tub. Trying to add them to my machine for tracks
Thanks Dave

[Bavaria]

Hallo Marlow
This is the Bearing you need:
YEL 206-104-2F

YEL206-104-2F

and this is the 2 Bolt Flange you need

FL206-2 bolt flange-Exterior spherical bearing housing-Mounted bearing units & inserts-KML Bearing Catalogue

hope i can help you
kind regards
Frank

[Bavaria]

Hallo Marlow
I was wrong with the InnerBearing. The corect <size for the inner bearing is

SKF YEL 206-104-2F Discount SKF Y-bearings YEL 206-104-2F

This is importent. This bearing is not simetric and you can put this on the inner frame. For the semetric bearing YEL 206-104-2F you must build spacers .They are to long and toutch the frame. Sorry for that.
kind regards
Frank