＊Instant purchase welcome, silent purchase at midnight OK ◎ ＊One-of-a-kind, first-come, first-served ＊Bulk purchase welcome, feel free to comment ＊Free shipping! ＊Please contact us before evaluation if there are any problems.ᐟ.ᐟ This ball bearing is made of high-quality ceramic ZrO2 and PTFE materials, and features high precision, high speed, and low wear. It has low friction resistance, low power consumption, and high mechanical efficiency. Excellent corrosion resistance, can be used in harsh environments. It is characterized by high stability and high reliability. Standardized size, used for machine manufacturing, equipment installation, and maintenance. Specifications: Material: PTFE, ceramic ZrO2 Model: 6903 Inner diameter: 17mm / 0.7inch Outer diameter: 30 mm / 1.2inch Thickness: 7mm / 0.3 inch Weight: 15g / 0.5oz ※Since this item was received from someone else, I may not be able to answer detailed questions about the product. Please understand. ⚠️Please check the actual photos. I apologize if the description is incorrect (＞＜) Please purchase if you understand! ・Please understand that this item is stored at home and will be shipped in simple packaging. ・The item is unused, although it has been opened for inspection. ・Please check the actual photos for the condition of the product♪ ※In order to offer the item at a slightly lower price, it may be shipped without the box due to shipping costs. #Click here for SYK's product list ✨☜ 6903 ball bearing, ceramic ball bearing, 17x30x7mm ZrO2 ball bearing full ceramic ZrO2 ball bearing, miniature bearing deep groove ball bearing 8-6