Spherical Roller Bearing, Bearing Industry Number 21307, Bore Diameter 35 mm, Bore Type Cylindrical, Cage Material Steel, Closure Open, Lubricant Material Grease, Maximum Speed 9,500 RPM Grease, Maximum Temperature 390 Degrees F, Minimum Temperature 0 Degrees F, Outside Diameter 80 mm, Overall Width 21 mm, Ring Material Alloy Steel, Roller Material Alloy Steel, Seal Type Not Applicable, System of Measurement Metric, Application Vibratory Applications, Wind Energy