Specification Brand : uxcell BulletPoint1 : Model - 6902-2RS (I.D.=15mm, O.D.=28mm, Thickness=7mm) BulletPoint2 : Silicon Nitride Balls - Rolling Balls are made of Silicon Nitride with low density, high hardness, low coefficient of friction, wear-resistant, self-lubricating. BulletPoint3 : Material: Nylon cage, Inner and outer race are both made of chrome steel. BulletPoint4 : Features - Single row, double sealed. ABEC1 accuracy, Z1 noise level, C0 clearance grade. BulletPoint5 : Applications - Suitable for all kinds of industrial equipment, motor, wheels, office equipment and so on. ItemName : uxcell 6902-2RS Ceramic Bearings 15mm x 28mm x 7mm Si3N4 Silicon Nitride Bearing Balls ItemPackageDimensions_Height : 11.2014 centimeters ItemPackageDimensions_Length : 3.7084 centimeters ItemPackageDimensions_Width : 9.4996 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : deep-groove-ball-bearings Manufacturer : uxcell Material : Silicon Nitride ModelNumber : a21092200ux0325 PartNumber : a21092200ux0325 ProductDescription : Description:Deep Groove Ball Bearings are one of the most widely used rolling bearings. They are used to accommodate radial and axial loads in both directions. Ceramic balls have oil-free self-lubricating properties. Long service life, can be used in water and high-temperature environment. The speed of the ceramic ball bearing is higher than the speed of the normal bearing. Suitable for all kinds of industrial equipment, motor, wheels, office equipment and so on. Specification: Model: 6902-2RS Seal Type: Double Sealed Ball Material: Silicon Nitride(Si3N4) Inner Race/Outer Race Material: Chrome Steel Cage Material: Nylon Inner Diameter: 15mm Outer Diameter: 28mm Thickness: 7mm Accuracy Class: ABEC1 Noise Level: Z1 Clearance Grade: C0