SKF Single Row Deep Groove Ball Bearing, Steel Plate Shields on Both Ends, Inner Diameter 55mm x Outer Diameter 120mm x Width 29mm, 6311-2Z, 1 Piece

Catalogue number: 6311-2Z Features: ●Deep groove ball bearings are versatile bearings, particularly suited to high and very high speeds. ●The Explorer model has the following improved performance through the optimization of precision and internal shape, and the adoption of special heat treatment. ●Improves dynamic load capacity. ●Reduces noise and vibration levels. ●Reduces frictional heat, significantly extending the practical life of the bearing. ●Metal shield improves dust resistance. Specifications: ●Inner ring diameter (mm): 55 ●Outer ring diameter (mm): 120 ●Width (mm): 29 ●Operating temperature range (℃): -30 to 120 ●Accuracy grade: ISO 492 Dimensional accuracy: Inner and outer diameter P6 grade, width tolerance 0/-100μm, rotational accuracy normal tolerance ●Steel plate shield on both ends of bearing Material/Finish: ●High carbon chromium bearing steel