This INSERT BEARING has a Cylindrical Surface. Two Metal Shields to Protect the Bearing from Dust or any Possible Contamination. Bearing is Pre-Lubricated with High-Quality Grease, ideal for use in High and Low-temperature settings. Doesn't Have Groove and Oil Hole to Relubricate. Has Eccentric Locking Collar (Self-Locking Collar). - Specification: Item CSA205-16, Series CSA200, Outer ring type Cylindrical, Bore Diameter Metric 25.40 mm, Bore Diameter Inch 1.00 in, Outside Diameter Matric 52.00 mm, Outside Diameter Inch 2.0472 in, Width with Collar Matric 31.00 mm, Width with Collar Inch 1.220 in, Width Inner Ring Matric 21.40 mm, Width Inner Ring Inch 0.8425 in, Width Outer Ring Matric 15.00 mm, Width Outer Ring Inch 0.5906 in, Dynamic Load Rating Cr 14000 N, Static Load Rating Cor 7800 N, Limiting Speed 7000 r/min, Clearance Normal, Closures, Sealing type Contact standard, Lubrication Type Grease Shell RL2, Lubrication Temperature -20°C to +160°C, Relubrication feature Without, Rolling Element Indicator Ball, Material Gcr15, Locking Type Eccentric Locking Collar, Weight 0.200 KG.