Miniature ball bearings are widely used in various applications, especially where high-speed rotation, low friction torque, minimal vibration, and quiet operation are required. These bearings are ideal for precision machinery, small electric motors, and other compact devices that demand high performance in a limited space.
Miniature bearings come in different sizes and types, including metric series such as 68, 69, and 60, as well as inch-based R series. Bearings with an inner diameter of φ2mm or smaller are available in 18 metric types and 6 inch types. Additionally, they can be customized with features like dust covers, metal shields, stainless steel construction, and more to suit specific application needs.
They are commonly used in industrial machines, small reversing units, and other equipment where miniaturization, weight reduction, and thin-wall design are essential. Some common applications include fan motors, encoder motors, pressure rotor drills, hard disk drives, stepper motors, video recorders, and office automation (OA) equipment.
Popular miniature bearing models include: 682, 682ZZ, MR52, MR52ZZ, 692, 692ZZ, 683, 683ZZ, MR83, MR83ZZ, 693, 693ZZ, 603, 603ZZ, 623, 623ZZ, MR74, MR74ZZ, MR84, MR84ZZ, 684, 684ZZ, MR104, MR104ZZ, 694, 694ZZ, 604, 604ZZ, 624, 624ZZ, MR85, MR85ZZ, MR95, MR95ZZ, MR105, MR105ZZ, 685, 685ZZ, MR115ZZ, 695ZZ, 605ZZ, 625ZZ, MR106, MR106ZZ, MR126, MR126ZZ, 686, 686ZZ, 696ZZ, 606ZZ, 626ZZ, MR117, MR117ZZ, MR137, MR137ZZ, 687, 687ZZ, 607ZZ, 627ZZ, MR128, MR128ZZ, MR148, MR148ZZ, 688, 688ZZ, 698ZZ, 608ZZ, MR149, MR149ZZ, 689, 689ZZ, 609ZZ, 629ZZ, 639ZZ, 6000ZZ, 16001ZZ, 6200ZZ.
Understanding the proper selection and application of these bearings is crucial for ensuring long-term performance and reliability in modern engineering systems.
For more information on bearings and their maintenance, check out related articles such as "Early Damage and Avoidance of Sliding Bearings" and "Common Problems and Solutions in KOYO Bearings."
This article was originally published on China Bearing Network. For more details, visit the official website.
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