Cast iron flanged housing with a solid base for vibration damping and structural rigidity Standard-duty, deep-groove ball bearing insert for applications with moderate radial loads and light to moderate thrust or combination loads Felt labyrinth seals on both sides of the bearing keep lubricant in and contaminants out and flingers provide extra sealing protection Setscrew lock for a three-point contact hold on the shaft Grease fitting on the housing for reapplying lubricant