The ball bearing flange unit has capacity for higher speeds and allows for minor misalignment. It generates little friction and provides shaft support for high precision applications. The 4-bolt, square flanged unit is the standard in the industry.
Martin Ball Bearing Flange Unit, 4-Bolt, 2.438 in Bore Dia, 7 in Width, 0.688 in Flange Thickness, Cast Steel Cage, Uncoated
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