Hign-concerned Chemical : None Surface Roughness : Ra 0.05 Torque Capacity : 8*16*5mm Structure : Ball Model Number : 688RS ABEC-3 Coatings : Chrome Steel/GCr15 Material : 52100 Chrome Steel Brand Name : FUSHI Origin : Mainland China Certification : RoHS Bearing Type : Ball For Load Direction : Radial Construction : Single Row Seal Type : Sealed Part Number : 688 2RS For Shaft Diameter : 8mm Bore Dia (d) : 8mm Bore Dia Tolerance : -0.008mm to 0 For Housing ID : 16mm Outer Dia (D) : 16mm Outer Dia Tolerance : -0.008mm to 0 Width (B) : 5mm Width Tolerance : -0.12mm to 0 Ring Material : 52100 Chrome steel Ball Material : 52100 Chrome steel Cage Material : 300 Series Stainless Steel Shield Material : 300 Series Stainless Steel Dynamic Load Rating (Cr) (Newtons) : 964 Static Load Rating (Cor) (Newtons) : 374 Max Speed (Grease) (X1000 RPM) : 12 Max Speed (Oil) (X1000 RPM) : 15 Lubrication : grease Shaft Mount Type : Press Fit Temperature Range : -20 to 120 ABEC Rating : ABEC-1 Radial Clearance Trade No. : C0 Radial Clearance : 0.002mm to 0.013mm Ball Qty : 10 Ball Dia : 2.0000mm Weight (grams) : 3.69 window.adminAccountId=110002693;