Attaching cylindrical open bearings?

[boblon]

I have a real noob question.

When you use supported round rails, and therefore open cylindrical bearings, how do you secure your table or whatever to those bearings?

BobL.

[keebler303]

generally you will build or make blocks like this to hold the bearings. The blocks have tapped holes to screw to the machine.


Good luck
Matt

[boblon]

Thanks.

I see a lot of round bearings on EBay. If you were to build some of those blocks would you epoxy the bearings in it? I see in the pic you posted they appear to have steel spring retainers (or whatever you call them). Seems like it would be very difficult to machine the exact sized grooves in the block at exactly the right place.

BobL.

[Zumba]

Seems like it would be very difficult to machine the exact sized grooves in the block at exactly the right place.

It's easy if you know what you're doing. If you don't, do yourself a big favor and BUY the pillow blocks with the bearings already installed.

By the way... how are you supporting your rails? Are you buying pre-drilled bars and T-shaped extrusion or are you planning to drill/tap the bars yourself?

Lastly, never mention the word "epoxy" again on this forum unless you're talking about gluing together two pieces of wood. Thanks.

[boblon]

Originally Posted by Zumba It's easy if you know what you're doing. If you don't, do yourself a big favor and BUY the pillow blocks with the bearings already installed.

I would fall into the BUY catagory on this.

By the way... how are you supporting your rails? Are you buying pre-drilled bars and T-shaped extrusion or are you planning to drill/tap the bars yourself?

Don't have them yet (haven't won any of the bids I've placed on EBay). I do see a lot of them sold and if a lot of these people are making the blocks then I am amazed, (and sorely lacking in skills I guess)

Lastly, never mention the word "epoxy" again on this forum unless you're talking about gluing together two pieces of wood. Thanks.

Ooops, my bad, sorry

Thanks,
BobL.

[monte55]

Yes, they are all over E-Bay. Price ranges are dramatic. Last week I saw 1"
open bearings .........some were $79 for one. I lucked out and won 2 auctions,
each has two bearings 1" open cast iron mount. I got all four delivered to my house for a total of $66. That's a good deal.