Bearing Repair Kit, Fits Square Base Size Not Applicable, Compatible Grainger Part Number 2C533, 2C534, 2C802, Includes (5) 1/4-20 Lock Nut, (5) 1/4-20 x 3/4 Hex Head Cap Screws, 4-Way Top Casting, Aluminum Dust Cup, Instruction Sheet, Lower Casting with Thrust Bearing, For Fan Type Wind-Driven Turbines, For Fan Mounting Type Not Applicable, Container Capacity Not Applicable, Compatible Manufacturer Model Number TV16G, TV18G, TV20G, For Use With 16 in to 20 in Turbines