Revolution Design Ultra Bearing 12x21x5mm (4pcs)

Revolution Design Ultra Bearings are 12x21x5mm quality ball bearings with a metal and a plastic seal. This combination ensures excellent smoothness and high dirt repellence at the same time. They are available in many sizes and offer excellent quality at a fair Price.

Features

• High-quality ball bearings with metal and plastic seals
• Excellent smooth running and high dirt resistance
• Inner diameter: 12mm
• Outer diameter: 21mm
• Width: 5mm
• Available in many sizes
• Outstanding quality at a fair price