Feature:1. This oneway bearing can rotate freely in one direction and lock in the other direction.2. Made of GCr15 bearing steel, the hardness is HRC6165after heat treatment, compact size, high load capacity.3. With enough space for storing grease, it has a longer lubrication interval, more dependable to use.4. It can completely "lock up" the drive shaft when it receives driving force, avoiding the problem of insufficient "locking up" performance of traditional stamped outer ring oneway bearings.5. Widely used in textile machinery, printing machinery, automotive industry, household appliances, currency detectors, etc.Specification:Item Type: One-Way Bearing Material: GCr15 Bearing SteelModel: CSK20PPInner Diameter: Approx. 20mm/0.8inOuter Diameter: Approx. 47mm/1.9inThickness: Approx. 14mm/0.6in.Package List:1 x One-Way Bearing Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!