such gears each weighing between 1.885 kg and 500 kg, measuring between 30 mm and 505 mm in diameter and between 15 mm and 285 mm in width (provided for in subheading 8483.90.50) Free No change No change On or before 12/31/2025 . 12046. 14Y stepper motors Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.67 Electric DC stepper motors of an output under 18.65 W, measuring between 20 mm and 39 mm in length (provided for in subheading 8501.10.40) Free No change No change On or before 12/31/2025 . 12047. Air door actuators Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.68 Air door actuator DC motor of an output under 18.65 W for heating, ventilating and air conditioning (HVAC) climate-control systems (provided for in subheading 8501.10.40) 2.1% No change No change On or before 12/31/2025 . 12048. Servo motors Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.69 Ferrite type DC electric motors, of a kind used to control air temperature in permanently installed heating, ventilation and air conditioning systems in the automotive industry, each motor with an operating voltage ranging between 8 V and 14.5 V (amp side voltage ranging between 10 V and 16 V), ring varistor, brush and D cut output shaft (provided for in subheading 8501.10.40) Free No change No change On or before 12/31/2025 . 12049. DC brushed rhombic winding NdFeb magnet motors, with output under 18.65 W Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.70 Electric DC, brushed, ironless core motors with rhombic winding and NdFeB magnets, each motor with an output under 18.65 W and a diameter exceeding 8 mm but not exceeding 15 mm (provided for in subheading 8501.10.40) Free No change No change On or before 12/31/2025 . 12050. DC brushed rhombic winding NdFeB magnet motors Subchapter II of chapter 99 is amended by inserting