In terms of performance compatibility, deep groove ball bearings are optimally aligned with electric motor requirements. Most standard motors operate at 1500-3000 r/min—well within the limiting speed range of these bearings, which can even accommodate certain high-speed motor applications. Their radial clearance is adjustable according to operational demands, spanning from the minimal clearance of C2 grade to the increased clearance of C4 grade, thereby accommodating shaft expansion across diverse temperature environments.