Bearings are true to size. Seems well done and the ride quality has been restored and the squeaking and grinding noises I was having have been eliminated. Yes, they will fit my 2010 Schwinn Meridian rear axle. An "internal" bearing puller for removing old bearings is recommended but not required. If you have a bearing puller, make sure all the "legs" go in. Despite this, the axle support tube in each axle housing gets very close to the bearings inside, making it difficult to grab the inside of the bearing. I used a 2 x 4 board over the supporting surface to install with no problems.