Ball Bearings Miniatures

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Bearings has a huge selection of Miniature Bearings and Instrument Series Ball Bearings with over 500 types available. Precision tolerances from ABEC-1 through ABEC-9 are generally available for most miniature products. Typical bore sizes of miniature ball bearings start at 3 mm with an outside diameter a mere 10 mm. Custom-made miniature bearings can have bore sizes as small as 1 mm!

Miniature bearings from Grainger can offer precise rotational performance for applications with light-load capacities. Miniature ball bearings can be open or shielded, which helps prevent dirt from entering and lubricant from leaking out, and unflanged or flanged for easier plate mounting. Some miniature ball bearing options feature extended inner rings to help fit certain locking devices when a press fit is not possible. Shop Grainger to help find miniature bearings to fit your application.


2.5mm x 7mm x 3mm ZEN x2.5-2z-zen Ball Bearings Miniatures

1045 Carbon Steel T-Shaped
No Black Oxide Coating

2.5mm x 7mm x 3.5mm ZEN sf692x-2z-zen Ball Bearings Miniatures

No No
Bearing Steel J7

2.5mm x 7mm x 3.5mm ZEN 692x-2z-zen Ball Bearings Miniatures

0.0031 1.25 in
Mounted Bearing 22215

2.5mm x 7mm x 2.5mm ZEN sf692x-zen Ball Bearings Miniatures

94 [Steel] Steel
6 Double

2.5mm x 7mm x 2.5mm ZEN s692x-zen Ball Bearings Miniatures

69 Bearings with Housin
6904 20

2.5mm x 6mm x 2.6mm ZEN s682x-2z-zen Ball Bearings Miniatures

45.0 mm EC522-619
SR200X6.5 242 mm

2.5mm x 6mm x 2.6mm SKF w638/2.5-2z-skf Ball Bearings Miniatures

-20 °C UK320G2H
90 mm 171.6 kN