Bearings like this?
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5,400 Posts
You lubed it up I assume with some good grease?
While we're on the topic of bearings does anyone know the NTN number for the bearings that run in the idler wheels?
While we're on the topic of bearings does anyone know the NTN number for the bearings that run in the idler wheels?
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1,630 Posts
The bearing shown in above photo would be ok for inside the chaincase but pretty much worthless anywhere else. Someone mentioned the 2RS designation to indicate two seals. He is correct.
Bearing Facts:
Z - a single shield on one side
ZZ - a single shield on both sides
RS - a single seal on one side
2RS - a single seal on both sides
650 Indy - The only Polaris bearing sizes I know of are 6205 2RS which is a 1/2" wide, 2" OD bearing for a 1" shaft. I believe all your idler and bogie wheels are going to use this bearing. For sure the idlers and wheels inside the skid. The later skids uses the 6205 bearing everywhere in the skid accept the rear shaft which takes a 6004 bearing. Its narrower, smaller od and fits an 11/16" shaft. Exactly why they did this, I have no idea. Seems a step backwards to me. Dont buy NTN bearings unless you have a source to get them cheap. Ive seen bearings with stainless housings going for FAR less money than the stealer wants for stock carbon steel NTN bearings. I have used Snowball bearings for the last couple years with no problems so far. Watch e-bay, you can get a whole lot 12 bearings for under 50.00 shipped. I buy in the summertime.
Bearing Facts:
Z - a single shield on one side
ZZ - a single shield on both sides
RS - a single seal on one side
2RS - a single seal on both sides
650 Indy - The only Polaris bearing sizes I know of are 6205 2RS which is a 1/2" wide, 2" OD bearing for a 1" shaft. I believe all your idler and bogie wheels are going to use this bearing. For sure the idlers and wheels inside the skid. The later skids uses the 6205 bearing everywhere in the skid accept the rear shaft which takes a 6004 bearing. Its narrower, smaller od and fits an 11/16" shaft. Exactly why they did this, I have no idea. Seems a step backwards to me. Dont buy NTN bearings unless you have a source to get them cheap. Ive seen bearings with stainless housings going for FAR less money than the stealer wants for stock carbon steel NTN bearings. I have used Snowball bearings for the last couple years with no problems so far. Watch e-bay, you can get a whole lot 12 bearings for under 50.00 shipped. I buy in the summertime.
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985 Posts
^^ correct on the designations, but i should add that the RS stands for Rubber seal. you can get it with a rubber seal or a steel shield. just wanted to clarify.
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3,729 Posts
That should be correct fro your '91, except for the two wheels that carry the track over the rear torque arm. The earlier suspensions had those cheapy wheels there with different bearings. I want to type the number I think it is, but I am not sure, so maybe somebody else knows.
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15,519 Posts
In the future, check out www.mcmastercarr.com and see what they have to say about bearings, they have a good explanation about seals and what not.
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4,755 Posts
in the process myself on the ultra ,just went to the local NAPA store one was 22 dollars a piece the other made over seas was 6 dollars ,so guess what one i bought? you guessed the cheap ones ,if you pop the seal out both have very little grease in them ,and in the chain case it also has a double sealed bearing
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64 Posts
I just bought a ten pack of 6205 bearings for my 93' 440 polaris, from Royal distributing,
a ten pack costs $33.95 Canadian.
Going to put them in tonight since they came in the mail today.
a ten pack costs $33.95 Canadian.
Going to put them in tonight since they came in the mail today.
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506 Posts
if your import bearing is made in japan ok. If it is china save some time and just throw it in the trash and leave the old ones in. They won't make it a season. Buy ntn blue they are cheaper than the napa bearings. I think like $25 for a 4 pack. I believe the rear wheels are 6004-2rs and the other rail idlers are 6205-2rs on newer polaris.
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807 Posts
The ten pack tarantumtwister bought are NTN with the low temp grease but without the signature blue seal. OEM doesn't pay for colored seals why should you. (except for orange sealed 6203's some Polaris had) Never buy Chinese anything!!!!
Even if your sled came with one seal for outside, the preferred chaincase replacement is two seals and synthetic lube.
Even if your sled came with one seal for outside, the preferred chaincase replacement is two seals and synthetic lube.
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