20Pcs V623ZZ V Groove Ball Bearings Pulley Wheels Roller V Shape Groove Wheel Roller Ball Bearing for Rail Track Linear Motion System 3x12x4mm

• 【High Quality】These bearings are made from high quality carbon steel for durability, with good performance and long service life.
• 【Double Shield】They are double shielded to avoid contaminants entering and save lubricant, more practical, can bring you more convenience.
• 【V Groove】These ball bearings is compact design, easy to carry and store, with 1.4mm deep V groove that generally ride on a rail or track.
• 【Wide Use】These are specialized bearings that are used in many linear motion systems, easy to use, can improve work efficiency, save time and energy.
• 【Package】There comes total 20 pieces bearings which you may use for many different projects.

Features: These bearings are made from high quality carbon steel for durability and long service life. They are double shielded to avoid contaminants entering and save lubricant. Bearings have 1.4mm deep V groove that generally ride on a rail or track. These are specialized bearings that are used in many linear motion systems. There comes total 20 pieces bearings which you may use for many different projects. Specifications: Material: Carbon steel Model: V623ZZ Inner Diameter: 3mm / 0.12" Outer Diameter: 12mm / 0.47" Height: 4mm / 0.15" V Groove Angle: 90° V Groove Width: 2.8mm / 0.11" V Groove Depth: 1.4mm / 0.05" Quantity: 20pcs Package Includes: 20 x Bearings