7001CYP4  Angular Ball Bearing, Bearing is Precision Rolling, bearing is 15 degrees Contact Angle, Polyamide resin cage and Abec-7, Made in Japan, inner diameter is 12mm, outer diameter is 28mm and width is 8mm.

Item: 7001CYP4 Ball Bearing
Type: Nachi Angular Ball Bearing
Cage: Polyamide resin cage
Quality: ABEC-7
Dimensions: 12mm x 28mm x 8mm/Metric
ID (inner diameter)/Bore: 12mm
OD (outer diameter): 28mm
Width/Height/thickness: 8mm
Size: 12 x 28 x 8 mm
Quantity: One Bearing

7001CTDULP4 Super Precision 15 Degree Angular Contact Duplex ABEC7/P4 Phenolic Cage, Universal Mounting Light Preload Set Ball Bearings Open and pre-Lubricated with Oil

Price is for Pair of Bearings Set

Super Precision Angular Contact bearings are designed for rigid, high speed, high tolerance applications. Spindle bearings used in pairs in a 'back to back' or 'face to face' arrangement can support axial forces on both directions and moments. Bearings in a tandem arrangement can only support axial loads in one direction. Spindle bearings are available with a 15 degree degree contact angle. Various cage options are available as well as the use of ceramic balls which allow for higher speed, lower friction and heat generation and a longer operating life.