Features: These bearings are made from high quality carbon steel for durability and long service life. They are double shielded to avoid entering and save lubricant. Bearings have 1.5mm deep V that generally ride on a rail or track.
These are profession bearings that are used in many linear motion systems.
There comes total 10 pieces bearings which you may use for many different projects.

Specifications:
Material: Carbon steel
Model: V624ZZ
Inner Diameter: 4mm / 0.15"
Outer Diameter: 13mm / 0.51"
Thickness: 6mm / 0.23"
V Width: 5mm / 0.19"
V Depth: 1.5mm / 0.06"
Quantity: 10pcs

Package Includes:
10 x Bearings