The -type track cam follower roller bearing is an essential rail accessory, ideal for machine tools and 3D printers. Its high precision and rigid bearing design ensure smooth and accurate movements. To use, simply install the bearing onto the rail or machine part, ensuring the male thread is securely fastened. This replacement needle roller bearing is ideal for maintaining the efficiency and longevity of your equipment. Features -Color:Silver -Material:Steel -Size:2.30X1.30X1.30cm/0.90X0.51X0.51in -Firm material: made from steel, these bolt type needle roller bearings are built to last, ensuring longterm reliability and resistance to wear and tear - : engineered with precision, these cam followers offer smooth operation, reducing friction and noise for an enhanced user experience -Efficiency: the smooth rolling action of the bearings minimizes energy loss, thereby improving the overall efficiency of your machinery -Versatile application: suitable for a wide range of mechanical equipment, these bearings are widely used in various industrial applications -Easy installation: designed for simplicity, these track cam follower bearings are easy to install and maintain, spending less time on maintenance Package list: 4 x roller bearings