0436502 bearings are used in the Excavator Final drive system of Hitachi ：
0436502 Double row angular contact ball bearings
0436502 BRG. Hitachi parts EX20UR, EX22, EX22-2, EX25, EX25-2, EX30, EX30-2, EX30U, EX30UR, EX30UR-2, EX30UR-2C, EX30UR-3, EX33MU, EX33U, EX35-2, EX35U, EX35UNA, EX40UR-3, ZX27-3, ZX30, ZX30U, ZX30UR, ZX35, ZX35U, ZX40UR
