Byrd, count on the best!

• Diameter (D) 4"** indexed to your shelix (may fluctuate .001)  In other words, when you order a shelix and you want a bearing, you need to have the bearing matched to the shelix.  The OD may range on the shelix shaper head by +/- .003 so get the bearing indexed to the shelix at time of purchase
• Bore 1-1/4" 
• requires orange shim