This INSERT BEARING has a Spherical 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. Have Oil Hole to Relubricate. Has Eccentric Locking Collar (Self-Locking Collar). - Specification: Item SA204 G, Series SA200, Outer ring type Spherical, Bore Diameter Metric 20.00 mm, Bore Diameter Inch 0.787 in, Outside Diameter Matric 47.00 mm, Outside Diameter Inch 1.850 in, Width with Collar Matric 31 mm, Width with Collar Inch 1.22 in, Width Inner Ring Matric 21.40 mm, Width Inner Ring Inch 0.843 in, Width Outer Ring Matric 14.00 mm, Width Outer Ring Inch 0.551 in, Dynamic Load Rating Cr 12700 N, Static Load Rating Cor 6550 N, Limiting Speed 8500 r/min, Clearance Normal, Closures Shield on both sides, Sealing type Contact standard, Lubrication Type Grease Shell RL2, Lubrication Temperature -20°C to +160°C, Relubrication feature With, Rolling Element Indicator Ball, Material Gcr15, Locking Type Eccentric Locking Collar, Weight 0.180 KG.