Product Name: Copper Self Lubricating Material: Copper Base Alloy Bearing Mechanism: Solid Friction Lubricant Type: Solid Lubrication Additional Features: High Speed Bearing Load Direction: Radial Bearing Bearing capacity: 35N/mm Friction coefficient: 0.12~0.18 Operating temperature: - 80 C~160 C Sliding speed: 2.5m/s PV value: 2.45N/mm m/s Inner diameter: 4mm - 28mm Outer diameter: 8mm - 35mm Height: 4mm - 40mm For Example: 4 x 8 x 6mm, Inner Diameter Is 4mm, Outer Diameter Is 8mm, Height Is 6mm (and so on for Other Sizes) 1. It Is Formed by Mold Manufacturing, Sintering in High Temperature and Shaping. the Matrix Has Fine and Uniform Voids, and Forms Oil State After Lubricating Vacuum Impregnation. 2. Good Toughness, High Precision, Not Easy to Wear, Fatigue Resistance, Good Toughness, Impact Resistance and Load Resistance. 3. Long Self-lubricating Life, High-quality Material, High-temperature Sintering, Self-lubricating Through Lubricating Oil Impregnation. 4. Stable Performance, Not Easy to Damage, Improve Efficiency, Low Friction Coefficient, Not Easy to Burn in Use, Work in Coordination with Machinery, Fast Operation, Effectively Improve Work Efficiency, and Many Specifications. It Is Applicable to Agricultural Machinery, Food Packaging Machinery, Mining, Metallurgy, Medical Treatment, Chemical Construction, Automobile, Railway, Aviation, Instrumentation, Oil, Ships, Etc.