ucf207-20 4 hole flange

Chrome Steel Ball Bearing Insert Features:

Rings and balls are made of GCr15 52100 vacuum degassed bearing steel. This cleaner high-quality steel along with precision grinding and super-finishing of raceways adds to L10 bearing life.

Grade 10 balls for quiet and smooth performance.

Riveted steel retainers Zone hardened annealed inner rings in set screw areas to prevent cracking.

High tensile strength gray iron for castings.