Re: ultramatic

Posted by BlackBeerd On 2012/4/15 6:29:00

If you are machining a new bearing housing anyway, find a slimline double sealed bearing that will fit over the shaft. Sleeve or chrome plate it up to size and then machine the new housing to fit. This way you have the correct inner bearing race from the right material and the right hardness and the right size. And you only need to hold about a .0004 tolerance instead of one ten-thousandths.

Before you put the bearing in, peel out the rubber seal on the inside. That way it's lubricated and you still get an oil seal where you need it.

If you can only find a narrow bearing with the right ID and OD, put two in side by side and pull out three of the seals.

McMaster.com is your friend.