AXK5578+2AS Needle Roller Thrust Bearings w Washers, 55mm Bore Diameter, 78mm ODCategory: 55mm Bore1.This Uxcell Needle Roller Thrust Bearings provide a high degree of stiffness within a minimum axial space. It has a smaller cross-section than a standard thrust bearing for use in restricted spaces.2.These bearings to accommodate heavy axial loads and peak loads due to small diameter deviation of the rollers within one assembly.3.AXK Thrust Bearings can be combined with washers in the AS series in applications where adjacent components cannot serve as raceways.4.Made of hardened spring steel, both faces of the washers are polished and can be used as raceways.5.Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.Specification:Bearing No.: AXK5578Bearing Washer No.: AS5578Needle Roller Meterial: Chromium Steel (GCr15)Cage Meterial: ST13 SteelBearing Washer Meterial: 65Mn Spring SteelBore Diameter (d): 55mmOutside Diameter (D): 78mmBearing Thickness (T1): 3mmWasher Thickness (T2): 1mmTotal Thickness: 5mmDynamic Load Capacity (Cr): 37.4kNStatic Load Capacity (Cor): 185kNMaximum Rotational Speed (Oil): 3500rpmNumber of Pack: 1 Pcs For CALIFORNIA residents only: WARNING: This product contains chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm.Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in a product. With Unique Bargains' products, the exposure to these chemicals may be of no significant risk to you, but out of caution, we have elected to place this warning on our site to make sure our customers are informed.You can find more information at http://www.oehha.ca.gov/proposition-65/about-proposition-65.