Wamsutta
Well-known member
What would be the difference between a 6203RS and a 6203-2RS ?
Bearing Part Numbers
- Thread starter Wamsutta
- Start date
FrankLee
Well-known member
2RS is two rubber seals, but I think they're the same. Also referred to as 6203LL.
FrankLee
Well-known member
That's what I thought until I started searching.
I guess it depends on the seller and/or mfgr.
I guess it depends on the seller and/or mfgr.
four.cycle
Well-known member
single shield / double shield.
a bearing is a bearing is a bearing.
many of them are made in three flavors: full open, one side shielded, both sides shielded: e.g., 3202, 3202S, 3202SS (prefixes/suffixes may vary between different manufacturers.)
fortunately bearing numbers have remained pretty much the same in the industry since Day ONE.
a bearing is a bearing is a bearing.
many of them are made in three flavors: full open, one side shielded, both sides shielded: e.g., 3202, 3202S, 3202SS (prefixes/suffixes may vary between different manufacturers.)
fortunately bearing numbers have remained pretty much the same in the industry since Day ONE.
four.cycle
Well-known member
Bearings and gaskets for lawnmowers are two items I would not be buying online. Amazon or otherwise.
whateg01
Well-known member
Not shielded. That would be ZZ. RS indicates sealed.
whateg01
Well-known member
The most common example I know of is a lawnmower spindle where you want to be able to grease it from one side but you also want to keep dirt and debris out from the other. And if you want to fun reading, search up whether they should be greased.
four.cycle
Well-known member
I never asked "why". I only had to remember which order to arrange them in on a shelf.
seber
Well-known member
The bearing number is standardized and with it is the ABEC rating. Unless the bearing is fake, the quality is there no matter who sells it. You can hedge your bet by going to a bearing house, but you are going to pay for it.
alfadan
Well-known member
I think a lot of times a single- shielded bearing is picked so they could save .015 cents per unit
Seals add a bit of drag and sometimes only one side of the bearing is exposed and needs to be sealed. Imagine a hub riding on an axle using a pair of bearings. Only the outer two faces, or one half of each bearing, would need seals.
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four.cycle
Well-known member
Wamsutta said:
$$$
no. It's as whateg01 said earlier- on something like a spindle, with a top and bottom bearing, you put the seals facing outward, it has a grease fitting between the bearings, and you can grease them. Realistically, sealed bearings would probably last longer, because most people probably won't grease often enough, but grease fittings are viewed as a positive feature for longevity.
Or you can buy on ebay and almost be guaranteed a fake. Because there is no industrial product that is counterfeited as much as bearings. Because they are all the same, ABEC standards, and all you need to sell a $2 POS generic Chinese bearing as a $30 SKF is a laser etching and a printed box. They already have the laser etching feature for their $2 bearing, so they change it to read SKF. And then print an SKF box. Easy money.
What is easier to fake at that profit margin? Certainly not a Snap On ratchet, or even a DeWalt 20V battery.
whateg01
Well-known member
Nobody's counterfeiting the cheap no name bearings I buy from Amazon!
One side is open because it's in the oil lubricated part. the seal (rs is seal, not just a a shield) keeps the oil in. oiled bearings are slightly less friction, and the seal adds some.
as for amazon bearings, I bought some for a low demand application (wheels for a toy car for a stuffed tiger...) where round and close to the right size were the only criteria. They're remarkably nice, at least looking and spinning. don't know how they'd hold up in a real load at high speed.
chris142
Well-known member
That's a common bearing for alternators and idler pullys.
seber
Well-known member
On those mower spindles I always use double sealed. The bottom bearing never wears out before the top so lubing that one with a zirc is a waste of grease. No matter how much you put in that spindle, it will quickly fall away from the top bearing so that one is better off sealed anyway.
it looks sealed to the armature side & open to the gear case side. makes sense
You could. I probably wouldn't, though. I would for a no seal bearing, where it runs in oil on both sides.
I see it , yes... so a double sided seal would be A-OK!
probably used as a cost savings when it was built, save half a cent here , a penny there etc.