Cooling Tower Gearbox
  • Cooling Tower Gearbox
  • Cooling Tower Gearbox
  • Cooling Tower Gearbox
  • Cooling Tower Gearbox

    • TCT Series

    Cooling Tower Gearbox

    Industrial gear units for the drive of cooling tower fans

    The gearboxes used in cooling towers are designed to deliver steady power transmission and reliable motion control. They help drive large fan systems efficiently, even under continuous load and changing weather conditions. With precise gear alignment and smooth torque transfer, these units ensure quiet operation, stable performance, and longer equipment life. Their solid construction and well-sealed housing also protect against moisture and corrosion, which is suitable for long-term use in cooling applications.

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    Product Manual
    Features Gearboxes Designed for Cooling Towers
    • Output Shaft Design
      1:10 tapered shaft for precise alignment
      Easy installation and removal of fan blades
      Even load distribution for stable operation
    • Anti-Vibration Design
      Wider bearing span on the output shaft improves stability and reduces vibration during fan operation
      Even load distribution achieved through symmetrically positioned mounting bolts, helping maintain balance and structural strength
    • Cooling Performance
      The larger heat-dissipating surface and improved airflow cover help keep the gearbox temperature stable during operation
      Optional cooling coils can be added when the gearbox runs for long hours or in high-temperature environments
    • Low Noise
      The large gear contact ratio helps the transmission run more smoothly
      Precision gears manufactured to DIN 6 standards reduce vibration and operating noise.
    • Easy Maintenance
      Extension pipes can be installed through pre-drilled holes to allow a breather, oil fill, and drain ports to be accessed from outside the operating area
      The inspection window is positioned above the oil level, so the internal gear condition can be checked without draining the oil
      A patented S-shaped breather design helps prevent oil leakage and keeps maintenance clean and simple
    Quick Selection Table

    Input Speed: 1750 rpm

    Output speed (rpm) Gear ratio Motor power (kW)
    55 75 90 110 132 160 200 250 280
    280 6.3 - - - - - - - - -
    245 7.1 - 045 045 045 - - - - -
    220 8 - 045 045 045 050 055 - - -
    195 9 - 045 045 050 050 055 060 - -
    175 10 - 045 045 050 050 055 060 065 -
    155 11.2 045 045 050 050 055 060 065 070 070
    140 12.5 045 045 050 050 055 060 065 070 075
    125 14 - 055 055 055 060 065 070 075 075
    110 16 - 055 055 055 065 070 075 075
    97 18 - 055 055 060 065 070 075

    Input Speed: 1160 rpm

    Output speed (rpm) Gear ratio Motor power (kW)
    55 75 90 110 132 160 200 250 280
    185 6.3 - - - - 60 60 65 65
    165 7.1 45 45 - - 60 60 65 70
    145 8 45 45 50 55 60 60 65 70
    130 9 45 50 50 55 60 65 65 75
    115 10 45 50 50 55 60 65 70 75 75
    105 11.2 50 50 55 60 65 65 75 75
    93 12.5 50 50 60 65 65 70 75
    83 14 55 55 60 65 70 70 75
    73 16 55 55 65 70 75 75
    64 18 55 60 70 70 75

    Overall Dimensions (mm)

    Frame size A B M D Q G H Mounting bolt (J) L K E Weight (kg) Oil capacity （L） O
    45 725 260 645 200 470 35 38 28 (M24) 725 290 95 365 24 260
    50 794 290 714 225 530 40 40 35 (M30) 795 320 105 435 34 290
    55 794 290 714 225 530 40 40 35 (M30) 795 320 105 435 34 290
    60 865 305 750 240 560 40 45 35 (M30) 900 370 105 660 55 335
    65 946 325 831 260 600 40 45 35 (M30) 990 395 105 830 75 360
    70 965 350 850 275 650 50 52 42 (M36) 1010 415 135 960 90 375
    75 1018 370 903 295 690 50 52 42 (M36) 1045 450 135 1250 110 410
    Overall Dimensions
    Need Reliable Drive Solutions for Your Application?

    Talk to our experts and find the gearbox or speed reducer that fits your system

    Why Us

    Transcyko specializes in the design and manufacturing of industrial gearboxes and speed reducers. With over 40 years of gearbox manufacturing expertise, we deliver precision drive solutions for plastics, rubber, chemical, metallurgy, automation, and energy industries. Our 40,000m² manufacturing facilities in Nanjing and Taiwan support large-scale production of up to 60,000 high-precision gear reducers annually.

    • Why UsOver 40 years of experience in gearbox manufacturing
    • Why UsClose cooperation with the Industrial Technology Research Institute (ITRI)
    • Why UsAdvanced machining and testing equipment from Germany and Japan
    • Why UsCertified to ISO 9001, ISO 14001, ISO 45001 and ISO 50001 standards
    • Why UsLong-term cooperation with global distributors

    When selecting gearboxes for cooling tower fans, it’s important to consider factors such as the tower size, airflow rate, and type of fan used. The gearbox also needs to provide enough torque to move the fan efficiently, which depends on the fan’s diameter, rotation speed, and the chosen gear ratio. Environmental conditions such as temperature, humidity, and potential exposure to corrosive elements should also be taken into account. Lastly, gearboxes with a simple and accessible maintenance design help reduce downtime and operating costs.

    To keep the gearboxes running smoothly, regular care is important. The oil needs to be changed or topped up timely to keep the gears well-lubricated and prevent wear. It’s also good to check for unusual noise or vibration, since these can be early signs of a problem. Keeping the gearbox clean helps prevent dirt and dust from building up, which can slow things down over time. It’s also important to make sure the motor, gearbox, and fan stay aligned, so the system runs smoothly and lasts longer.

    The lifespan depends on operating conditions and maintenance frequency. With proper lubrication, regular inspections, and correct alignment, a high-quality cooling tower gearbox can operate reliably for more than 10 years.