10PCS 693ZZ Miniature Ball Bearings 2 Types 3*8*4mm Small Double Shielded Miniature Metal Steel Roller Bearing Kit

Description:
Miniature ball bearings are available ball bearings of quite small size. These miniature ball bearings have a 3mm inner diameter, a 8mm outer diameter, and a 4mm thickness. Ball bearings of this size are ideal for precision work and applications that require a lot of functional mechanical parts in a small space, such as 3D printer, quadcopter or model.

Features:
These miniature bearings are made of high quality bearing steel for low noise and long service life.
They are double shielded to avoid contaminants entering and save lubricant.
Bearings have a 3mm inner diameter, a 8mm outer diameter, and a 4mm thickness.
These are great for small hobby 3mm shaft/rod projects such as 3D printer, quadcopter or ship model.
There comes total 10 pieces miniature bearings which you may use for many different projects.

Specifications:
Material: Bearing steel
Inner Diameter: 3mm / 0.12"
Outer Diameter: 8mm / 0.31"
Thickness: 4mm / 0.15"
Quantity: 10pcs

Package Includes:
10 x 693ZZ Bearing