A-type-slim bearings Whether the seales: no | yes Series:saa, sa, sb Inner: 1.000inch(25.4mm)-20inch(508mm) Outer: 1.375inch(34.925mm)- 22inch(558.8mm) Weight:0.016kg-7.167kg Slim bearings was used widely in textile printer, medical device, rotary tables, radar, communication, aircraft, aerospace, astronomy instrumentation and industrial robotics etc. Because of its characteristic such as small space, light weight and low friction. Please kindly check the detailed model for your choice: Sa020ar0 Sa025ar0 Sa030ar0 Sa035ar0 Sa040ar0