NTN Deep Groove Ball Bearings 6811C3, D=55 Aluminum Petit Bolt Cutter These conform to ISO specifications 858 1015 These conform to ISO specifications for the small end diameter of the inner ring and contact angle 9055 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range 40 to 250 ºF Seal Material None Dynamic Load Capacity 5250 lbf Seal Type None Static Load Capacity 1900 lbf Precision Rating Class 0 Maximum RPM 8000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Harmonization Code 8482 The outer ring incorporates synthetic rubber molded to a steel plate Deep groove ball bearings are very widely used