Product Description

Product Description

YJ-1S-L series Part-turn worm gearboxes suitable for Ball Valves, Butterfly Valves, Plug Valves,etc. Handwheel can choose according to your requirements.

 
YJ-1S-L series part-turn worm gearbox has good mechanical quality and steady operating performance. It has high mechanical efficiency, with new design, and it’s very easy to operate. The flange connecting to valve is according to ISO5211.
 

Product Parameters

 

Model YJ-1
-S-L
YJ-2
-S-L
YJ-2J
-S-L
YJ-3
-S-L
YJ-3J
-S-L
YJ-4
-S-L
YJ-4J
-S-L
YJ-5
-S-L
YJ-5J
-S-L
YJ-6
-S-L
YJ-6J
-S-L
YJ-7
-S-L
YJ-7X
-S-L
YJ-7J
-S-L
YJ-8
-S-L
YJ-8J
-S-L
YJ-9
-S-L
YJ-9J
-S-L
YJ-10
-S-L
YJ-11
-S-L
YJ-12
-S-L
Ratio 78:1 78:1 127:1 200:1 375:1 495:1 798:1 868:1 938:1 1100:1 2067:1 2260:1 3030::1 3960:1 5535:1 5900:1 7760:1 8526:1 9660:1 14130:1 19320:1
Max output torque
N.m
1300 1600 3000 4500 7500 12000 16500 23000 28000 32000 48000 63000 80000 100000 140000 190000 250000 350000 400000 650000 850000
Max stem diameter 42 50 60 60 75 90 110 110 120 120 145 160 170 180 200 210 220 270 300 380 420
Flange F12 F14 F16 F16 F20 F25 F30 F30 F35 F35 F40 F40 F48 F48 F48 F60 F60 F60 F80 F100 F100
φD 150 175 210 210 250 300 350 350 415 415 475 475 560 560 560 686 686 686 900 1200 1200
PCD D0 125 140 165 165 205 254 298 298 356 356 406 406 483 483 483 603 603 603 813 1042 1042
N-H-DP 4-M12-18 4-M16-20 4-M20-30 4-M20-30 8-M16-24 8-M16-24 8-M20-30 8-M20-30 8-M30-45 8-M30-40 8-M36-54 8-M36-54 12-M36-54 12-M36-54 12-M36-54 20-M36-54 20-M36-54 20-M36-54 20-M42-65 32-M42-65 32-M42-65

 

Company Profile

 

FAQ

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.

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Application: Industry Valves
Function: Change Drive Torque
Type: Worm Gear Box
Protection Grade: IP65 (IP67,IP68 Optional)
Operation: Manual
Material: Ductile Iron, Carbon Steel (Customizable)
Customization:
Available

|

Customized Request

worm gearbox

Is it Possible to Reverse the Direction of a Worm Gearbox?

Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:

  • Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
  • Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
  • Lubrication: Depending on the gearbox’s design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
  • Load: Reversing the direction might also impact the gearbox’s load-carrying capacity, especially if it’s designed for predominantly one-way operation.
  • Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.

If you need to reverse the direction of a worm gearbox, it’s advisable to consult the gearbox manufacturer’s guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.

worm gearbox

How to Calculate the Input and Output Speeds of a Worm Gearbox?

Calculating the input and output speeds of a worm gearbox involves understanding the gear ratio and the principles of gear reduction. Here’s how you can calculate these speeds:

  • Input Speed: The input speed (N1) is the speed of the driving gear, which is the worm gear in this case. It is usually provided by the manufacturer or can be measured directly.
  • Output Speed: The output speed (N2) is the speed of the driven gear, which is the worm wheel. To calculate the output speed, use the formula:

    N2 = N1 / (Z1 * i)

Where:
N2 = Output speed (rpm)
N1 = Input speed (rpm)
Z1 = Number of teeth on the worm gear
i = Gear ratio (ratio of the number of teeth on the worm gear to the number of threads on the worm)

It’s important to note that worm gearboxes are designed for gear reduction, which means that the output speed is lower than the input speed. Additionally, the efficiency of the gearbox, friction, and other factors can affect the actual output speed. Calculating the input and output speeds is crucial for understanding the performance and capabilities of the worm gearbox in a specific application.

worm gearbox

Types of Worm Gear Configurations and Their Uses

Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:

  • Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
  • Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
  • Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
  • Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
  • Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
  • Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.

Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.

China Standard Yj-1s-L Manual Type Part-Turn Valve Worm Gearbox   gearbox drive shaft	China Standard Yj-1s-L Manual Type Part-Turn Valve Worm Gearbox   gearbox drive shaft
editor by CX 2024-02-29