Welcome to our store! This track roller bearing is designed with smooth operation, low operating noise, and high operating speed. The contact between the roller and the guide rail is a 60-degree contact, which ensures good contact performance. With a small rolling resistance, this roller has a long service life. The internal structural design of the double-row angular contact ball bearing and the thickened outer ring give the roller a higher load capacity. Made of high-quality stainless bearing steel, this roller is heat-treated and precisely ground. The dust cover of the roller is either a metal dust cover or a rubber sealing ring. Specification: - Condition: 100% brand new - Material: Stainless bearing steel AISI440(9Cr18) - Inner diameter: Approx. 8 mm / 0.3 inch - Outer diameter: Approx. 24 mm / 0.9 inch - Thickness: Approx. 11 mm / 0.4 inch - Inner groove radius: Approx. 8 mm / 0.3 inch - Optional style: - #1 LFR50/8-8 for 8 mm guide KDD metal shield - #2 LFR50/8-8 for 8 mm guide NPP rubber shield Package list: - 1 * Track roller bearing 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.