71920ACDGA/P4A - SKF Precision Angular Contact - 100x140x20mm 7316576633553 the 62 designates this as

the 62 designates this as a deep groove ball bearing in ISO dimensional series 2 - the series simply denotes the outer diameter and width independent from the inside diameter

This 7012A5TRSULP3 bearing is a Super Precision angular contact bearing with a 25° contact angle and a phenolic cage

32 13 A C3 Maximum Capacity

719 32 ACD G A /P4A Series - SKF - Extremely Light Bore Size - 160mm 25 Degree Contact Angle Single Universal Light Preload Precision Rating

This BSB025062DUHP3 bearing is a ballscrew support bearing with a heavy preload

71920ACDGA/P4A - SKF Precision Angular Contact - 100x140x20mm 7316576633553 the 62 designates this asThis 71920ACDGA P4A bearing is a Super Precision angular contact bearing with a 25 contact angle and a high capacity design, this bearing is a universal fit single bearing with a light preload and a P4 precision rating. The bearing's dimensions are 100x140x20. 719 20 ACD G A P4A Series SKF Extremely Light Bore Size 100mm 25 Degree Contact Angle Single Universal Light Preload Precision Rating