Miniature Deep Groove Carbon Steel Bearing 2mm-12mm Bore Metal Sealed

Key Features

• Grease Lubrication — It is grease-lubricated, with the grease kept inside the bearing to lubricate the rolling parts.
• Metal-Sealed Sides — Both sides are metal-sealed, so each face of the bearing has a seal.
• Low Noise, Long Life — It offers high precision, low noise, high temperature resistance and long life.
• 4mm Inner Diameter — The inner bore is 4mm (0.16 in).
• 6mm Inner Diameter — The inner bore is 6mm (0.24 in).

Product Specifications

• Dimensions: 1mm 1.5mm 2mm~12mm
• Size code example: 3x18x3mm: inner diameter 3mm, outer diameter 8mm, width 3mm
• Lubrication: Grease-lubricated
• Seals: Metal-sealed on both sides
• Piece Count: 5 pcs

What It Is / How It Works

Miniature deep groove bearings are small ball bearings with grooved inner and outer rings. They carry radial loads and light axial loads, which makes them a common choice for compact rotating parts.

Who It's For / Use Cases

Miniature deep groove bearings suit builders and hobbyists who need a compact rotating support for small mechanisms, such as RC car and skate projects. They suit projects where shaft size and housing space are the first things to check before buying.

How to Use / Care

1. Use miniature deep groove bearings as the rotating support in small RC car and skate builds.

How to Choose

Start with the shaft diameter, then choose an inner diameter that matches it. Measure the housing opening for the outer diameter and width before ordering. Size codes such as 3x18x3mm read as inner diameter, outer diameter, then width.

Frequently Asked Questions

Which inner diameters are offered?
The inner diameters stated are 3mm, 4mm, 6mm and 7mm. The size range given is 1mm, 1.5mm and 2mm to 12mm.

How do I read a size code?
A code like 3x18x3mm means inner diameter 3mm, outer diameter 8mm and width 3mm.

Are the seals and lubrication sealed?
Both sides are metal-sealed, and the bearing is grease-lubricated.

How many pieces are in a pack?
The pack has 5 pieces.