Revolution Design Ultra Bearing 12x18x4mm (4pcs)

The Revolution Design Ultra Bearings (12x18x4mm, 4pcs) are high-quality ball bearings that feature both a metal and a rubber seal. This unique combination ensures excellent low-friction performance while providing outstanding durability against dirt. They are available in many sizes and offer excellent quality at a fair price.

Product Features:

• High-quality ball bearings with metal and plastic seal
• Excellent low-friction performance and outstanding durability against dirt
• Inner diameter: 12mm
• Outer diameter: 18mm
• Width: 4mm
• Available in many sizes
• Excellent quality at a fair price