Large diameter bearings

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This is a set of 4 different bearings. The I.D of the bearings are as follows:

(1) 4.75" ID Kaydon X-contact bearing
(1) 4" ID Kaydon really slim bearing
(1) 100 mm ID radia bearing
(1) 70 mm ID roller bearing, very heavy duty

These bearings would make an excellent choice for a large equatorial mount, or alt-az platform.

Thanks,

John

Funding Member

Telescopes, Astronomy, Binoculars