BRAND: NSK ID: 30BD40T12DDUCG21 MADE IN: JAPAN DESCRIPTION Item Number 30BD40T12DDUCG21 NSK CategoryAngular Contact Ball Bearing Double Row Weight and Dimensions Inner (d) MM30 Outer (D) MM55 Width (B) MM23 Inner (d) Inch1.1811 Outer (D) Inch2.1654 Width (B) Inch0.9055 Weight (kg)0.185 Product Properties BoreC - Cylindrical Bore Seal2RS - Rubber Seal on Two Sides Cage TypeP - Plastic Molded Cage External ModificationNo External Modification Radial Internal PlayCn Normal Internal Play PrecisionStandard Precision LubricationStandard Lubrication Heat StabilizationNo Heat Stabilization - Temperatures up to 120 °C Split Inner ring / Outer ringStandard Brand ‎NSK Material ‎Carbon Steel Bearing Number ‎30BD40DF2 Item Thickness ‎23 Millimeters Specification Met ‎Nsk Compatible Lubricant ‎Grease Outside Diameter ‎55 Millimeters Manufacturer ‎NSK Item Weight ‎1.85 pounds Package Dimensions ‎2.2 x 2.2 x 1 inches Item model number ‎BGFS10 Manufacturer Part Number ‎30BD40DF2 Suffix description DDURubber Seals At Each Side Of The Bearing CG21Special Radial Clearance In Micron PACKAGE INCLUDES: ONE (1) NSK BEARING 30BD40T12DDUCG21