Our factory offers the 20mm Inner Diameter Jvb Bearing ABEC-3 Ball Bearings 6004 Steel Cover Deep Groove Ball Bearing. These top-quality bearings are designed to withstand high-speed and heavy-duty applications. Made with premium-grade steel, they provide unmatched durability and strength. With an inner diameter of 20mm, these bearings are perfectly suited for a variety of industrial and mechanical applications. Our state-of-the-art manufacturing processes ensure that these bearings meet or exceed industry standards for quality and performance. Buy with confidence knowing that you're getting a product that's built to last. As a factory, we offer competitive pricing and excellent customer service.