Miniature Bearings

Kunjing Bearing offers an enormous array of miniature ball bearings ranging in size, application and materials. These bearings are manufactured with inside diameters starting as small as .0600 inches, and are normally used in instrument applications where moderate to precise tolerances are required. Most sizes are available in chrome and stainless steel as well as a variety of internal clearance, retainers, lubrications, tolerances, and starting torques. Most miniature and instrument bearings are available with flanged outer races, and the option of shields or seals as required.
Many products are available in SV30 special stainless steelmaterial (also in more common 400 and DD type Stainless Steel, 52100 Chrome Steel materials) in both inch and metric dimensions. Other major configurations from Kunjing Bearing include:

Open miniature ball bearings
Open, with extended inner ring miniature ball bearings
Shielded miniature ball bearings
Shielded, with extended inner ring miniature ball bearings
Sealed miniature ball bearings
Sealed, with extended inner ring miniature ball bearings
Flanged, open miniature ball bearings
Flanged, open, with extended inner ring miniature ball bearings
Flanged, shielded miniature ball bearings
Flanged, shielded, with extended inner ring miniature ball bearings
Flanged, sealed miniature ball bearings
Flanged, sealed, with extended inner ring miniature ball bearings

Main Designations:
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
Our range of miniature bearings and flanged bearings are suitable for many applications including:Radio controlled models,Gyrosl, Anemometers,Miniature gearboxes,Small motors.

INCH Series:
Inch series miniature bearings are single row ball bearings starting with inside diameters as small as .0400 though .5000.  Miniature bearings carry a moderate radial load and provide high performance in small working parameters.  Inch series bearings are available in stainless and chrome steel. Inch series bearings are available open, shielded, sealed and flanged. These bearings are also offered in various radial plays and ABEC 3, 5 & 7 tolerances.

METRIC Series:
Metric series miniatures bearings are single row bearings starting with inside diameters as small as 1 millimeter though 10 millimeters.  Similar to inch series miniatures, metric series bearings are offered in high precision ABEC 3, 5 & 7 tolerances,  Metric series miniatures are offered as open, shielded, sealed and flanged.  Metric miniatures are offered in stainless and chrome steel and in varying radial plays.