China Standard Yj-Zc Series Manual Valve Spur Gearbox gearbox definition

Product Description

Product Description


YJ-ZC series is 360 degree multi-turn spur gearbox, suitable for gate valves, globe valves,etc. handwheel and stem protection cover can choose according to your requirements.
YJ-ZC series multi-turn spur gearbox are with good mechanical quality and steady operating performance which apply to deal with variety climate and temperature.  The flange connecting to valve is according to ISO5211.

Product Parameters


Model YJ-ZC-1 YJ-ZC-2 YJ-ZC-3 YJ-ZC-4 YJ-ZC-5 YJ-ZC-6 YJ-ZC-7
Standard ratio 3:1 6:1 9:1 12:1 14:1 21:1 24:1
Optional ratio 2.5:1 3:1 4:1/6:1 6:1/9:1 6:1/10:1 9:1/15:1 10:1/20:1
Max output torque
459 1428 2448 3264 3808 5712 6528
Flange F12 F14 F16 F25 F30 F35/F40 F40/F48
φD 150 175 210 300 350 415 560
PCD D0 125 140 165 254 298 356 483
N-H-DP 4-M12-18 4-M16-24 4-M20-30 8-M16-30 8-M20-30 8-M36-45 12-M36-54
Max stem diameter 38


Company Profile




Q: What’s your main products?
A: Our main products are worm gearbox, bevel gearbox and spur gearbox for gate valve, globe valve, ball valve, butterfly valve and etc.

Q: How long is your delivery time?
A: Delivery time was depends on the quantity of the order and our inventory, normally is 10~15 days.

Q: Term of payment?
A: T/T 30% in advance, T/T balance before shipment.

Q: Can you provide free sample?
A: Yes, we can provide the sample for free, but the shipping costs need paid by yourself.

Q: Could you specially design and produce according to client’s requirements?
A: Yes, we can

If any other questions about our products, welcome to contact us.

Shipping Cost:

Estimated freight per unit.

To be negotiated
Application: Industry Valves
Function: Change Drive Torque
Type: Spur Gearbox


Customized Request


What is a Gearbox and How Does It Work?

A gearbox is a mechanical device that transmits power and changes the speed or torque of a rotating input shaft to a different output shaft. It is commonly used in various machines and equipment to control the speed and direction of motion.

Here’s how a gearbox works:

  1. Input Shaft: The gearbox receives rotational energy from an input shaft connected to a power source, such as an electric motor or an engine.
  2. Gears: Inside the gearbox are a set of gears with different sizes. These gears mesh with each other, and their arrangement determines the gear ratio, which defines how many revolutions the output shaft will make for a given rotation of the input shaft.
  3. Output Shaft: The output shaft is connected to the machinery or equipment that needs to be powered. As the gears rotate, the motion and power are transmitted from the input shaft to the output shaft.
  4. Gear Ratio: By selecting different gear combinations, the gearbox can change the speed and torque of the output shaft. A higher gear ratio results in higher torque and lower speed, while a lower gear ratio provides higher speed and lower torque.

Gearboxes play a crucial role in various applications, including automobiles, industrial machinery, robotics, and more, enabling efficient power transmission and speed control.

China Standard Yj-Zc Series Manual Valve Spur Gearbox   gearbox definition		China Standard Yj-Zc Series Manual Valve Spur Gearbox   gearbox definition
editor by CX 2023-09-26

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