Crane Hook bearings are cylindrical roller thrust bearings similar to the TP series bearings, but with added features that make them suitable for crane hook use. Like the TP series, our crane hook bearings have hardened and have top and bottom precision ground plates with milled brass cages, precision ground rollers and a mild steel band to retain the rollers. The inside diameter of the top and bottom plates are the same to allow slip fit centering on the crane hook shank. Relubricatable Thrust Bearings include a coated steel weather shield for protection against the elements, which is tightly fitted to the top plate O.D. and overlaps the bottom plate O.D. This acts as a limited sealing device. These bearings are available with optional grease fitting in the weather shield which allows for additional grease to the bearing, hence the term relubricatable thrust bearings. Shank diameters up to 10” are cataloged. These bearings are used widely in primary metals五福彩票平台靠谱吗, material handling, and shipping ports.