Where to buy bearings for a lathe

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fireguyfire

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I’ve been monkeying with my Luxcut lathe I recently picked up, and I am very satisfied with the purchase.
The spindle bearings and seals are new, and the carriage bearings feel great but the bearing in the cross slide fells a bit crunchy when you screw it in or out.
I disassembled the cross slide and was able to get the bearing out; it’s a different type of bearing than I’m used to seeing. It basically is 4 pieces, almost like washers on the outsides with 2 inner washers imbedded with spaced call bearings inside that mesh together, if that makes sense.
The only marking in the bearing is NTM51181 ( or maybe NTM51161 as it’s hard to read it I’m pretty sure it’s 51181).
Anyways, I’m looking to replace it and I ran that number on the internet and have had zero luck.
Can you gents help me out with where I might find a replacement for this bearing?
 
Thrust bearings ? If so , everyone sells them . You would need to know the size you need .
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McMaster-Carr would likely have them as well as any bearing distributor. Measure the ID, OD and thickness you need before calling around in case they can’t match that number, it could be specific to that bearing manufacturer
 
Dumb question, but I’m used to bearings such as wheel bearings that are a contained bearing.
This type of bearing I described is a thrust bearing?
 
Roller thrust bearing. I found the right one for my Heavy 10 through MSC, oddly enough. The original was long gone, I just used the ID, OD and approximate thickness.
Which reminds me I need to get behind that thing and adjust it.
 
fireguyfire said:
Dumb question, but I’m used to bearings such as wheel bearings that are a contained bearing.
This type of bearing I described is a thrust bearing?
Click to expand...
there are several different types, needle, cylindrical, and tapered roller thrust bearings. You'll need to match the type of roller you have to figure out the replacement. Needle would be very small diameter, cylindrical and tapered roller would be considerably larger. This is the McMaster selection page that shows the different styles. The thickness will also help determine which one it is, needle thrust bearings are quite a bit thinner than the other styles. Enter the ID, OD and thickness into the McMaster page and it should come up with something that fits. McM won't give you the industry part number, you can find that by using BDI's website and selecting by the size.

www.mcmaster.com

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
www.mcmaster.com www.mcmaster.com

Bdispartacuspages

www.bdiexpress.com www.bdiexpress.com
 
Both ball and roller types are available- I've seen both types in various machines
 
fireguyfire said:
Dumb question, but I’m used to bearings such as wheel bearings that are a contained bearing.
This type of bearing I described is a thrust bearing?
Click to expand...

What you're used to seeing are radial bearings. Things rotate inside them, and they deal with (mostly) forces perpendicular to the rotating shaft. What you have is an axial bearing, where the load is applied in line (axially) to the shaft. You've seen 'em... Lazy suzans on a kitchen table, or caster wheels... The radial bearing lets the wheel roll, the axial bearing lets the wheel "steer".

Anyhow... That lathe is probably from the early mid eighties, and the ball bearing type of thrust bearing that you found was getting less common by then Production got better, cheaper, more consistant, (and at a lower price point), and needle thrust bearings became a LOT more popular. There is no reason really to stay with the ball bearing style, except originality and/or availability. And even then, the ball style will "probably" be somewhat different, so Instead of two "layers" in the middle, all the balls would be stuck into a single cage. Making three layers.
These will of course have numbers, but where a tapered wheel bearing uses a cup and a cone, each with their own "bearing number", OR, if it's for a particular application, it might come in a kit with a whole different number on it- The thrust bearings can be looked up by the dimensions, and it might come as separate washers and rolling elements, or it might be a package deal. It's a little bit of figuring adding up the layers, (you can get the "washers" in different thicknesses) but it's really that straight forward. A hardened (bearing steel) washer, the rolling element, another washer. The height of the three has to match what you have, and of course the inner/outer diameter.

Searching for "thrust bearing", thrust needle bearing, and "thrust roller bearing" will bring you options. (Don't be afraid to try "roller" and "needle" versions of the search even if they're opposite of what you'd prefer. They bring up lots of stuff in lots of designs either way..
 
Since you're from Oilberta.

I use Motion for my bearing needs. Used the Edmonton office. Don't need an account, the guy I've dealt with at the counter have always been helpful and curious when I would bring him bearings made by companies that no longer exist.

But for those thrust bearings, I would just buy ones from Amazon, eBay etc.
 
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