2Pcs Fishing Reel Bearings 7 * 13 * 4 mm SMR137 2RS Stainless Steel Hybrid Ceramic Air Bearing SMR137RS SMR137 2OS CB

Bearing KitsTECHNICAL SPECSItem: SMR137 2RS CBStructure: Deep GrooveBearing Material: 440C Stainless Steel Ball Material:Ceramic Si3N4Bearing Type : Hybrid ceramic ball bearingBore Dia (d): 7mmOuter Dia (D): 13mmWidth (B): 4mmLubrication: No Grease For Free SpinningMagnetic: little Hardness: 58HRCCorrosion Resistance: GeneralClearance: C0Bearing Grades: ABEC 7QTY: 2 piecesBEARING STRUCTUREStainless Steel Hybrid Ceramic Bearing=+ Stainless Steel Outer Ring & Inner RingSi3N4 Ceramic Balls Stainless Steel Cage + Metal SealsADVANTAGE# Stainless Steel, Ceramic Hybrid, Orange Sealed bearings are specially designed for any application seeking a high precision, free spinning bearing. These are the true secret weapon for serious rc racers and long distance casters. ABEC 7 tolerances makes the Orange Seal line the closest precision tolerance that Bearings has to offer. The removable, non-contact rubber seals results in a bearing with less drag and that requires less maintenance than a typical shielded bearing. The Grade 5 ceramic Si3N4 balls will allow the bearing to be lighter and spin 50% faster than a traditional steel bearing.# Ceramic by its nature is lighter than steel by about 2/3 the wieght, it is harder than steel when it is in ball form and it is virtually frictionless because it is non-porous. A ceramic hybrid bearing has steel races with ceramic balls. The balls will never corrode or rust.

• Bearing Kits
• 2Pcs Fishing Reel Bearings 7*13*4 mm SMR137 2RS Stainless Steel Hybrid Ceramic Air Bearing SMR137RS SMR137 2OS CB