6004-2RS (ID=20mm, OD=42mm, Thickness=12mm)6004 2RS bearings are shielded on both sides to keep lubricant inMade of carbon steel carbon, durability and resistance to deformation under heavy loadsABEC 1 (P0) tolerance, Z2 noise level for most general useStatic load of 5050 newtons and load dynamic 9400 newtonsProduct DescriptionDescription:Normal precision single row, pre-lubricated.The ball bearings with deep groove are one of the most widely used bearings. They are used to support radial and axial loads in both directions.With low friction and high speed, ball bearings are cost effective and low maintenance.Carbon steel bearings are better in toughness than chrome steel bearings after quenching. These economical bearings are widely used in areas with low Mohs hardness requirement.Suitable for all kinds of industrial equipment, micro-s, small rotary s, office equipment, etc.Selection Guide:Shields(Z/ZZ Designation Suffix) - High Speed. Protect from dirt and debris.Sealed(Designation Suffix RS/2RS) - Manufactured from sheet steel reinforced nitrile butadiene rubber (resistant to oil and liquids). Lower limit speed than shield bearings.Specifications:Model: 6004-2RSSeal Type: Double ShieldInner/Outer Race Material: Carbon SteelCage Material: Stamped SteelInner Diameter (d): 20mmOuter Diameter ( D): 42mmThickness (B): 12mmDynamic load capacity (Cr): 9400NStatic load capacity (Cor): 5050NAccuracy class: P0 (ABEC-1)Noise level: Z2Number of packages: 4 pieces