China factory Saf Worm Gearboxes with Hollow Shaft for Extruders automatic gearbox

Product Description

 

Product Description

Product Features

High modular design, biomimetic surface with owned intellectual property right.
Adopt German worm hob to process the worm wheel.
With the special gear geometry, it gets high torque, efficiency and long life circle.
It can achieve the direct combination for 2 sets of gearbox.
Mounting mode: foot mounted, flange mounted, torque arm mounted.
Output shaft: CHINAMFG shaft, hollow shaft.

Main applied for
Chemical industry and environmental protection
Metal processing
Building and construction
Agriculture and food
Textile and leather
Forest and paper
Car washing machinery

Detailed Photos

 

Product Parameters

Technical data:

Housing material

Cast iron/Ductile iron

Housing hardness

HBS190-240

Gear material

20CrMnTi alloy steel

Surface hardness of gears

HRC58°~62 °

Gear core hardness

HRC33~40

Input / Output shaft material

42CrMo alloy steel

Input / Output shaft hardness

HRC25~30

Machining precision of gears

accurate grinding, 6~5 Grade

Lubricating oil

GB L-CKC220-460, Shell Omala220-460

Heat treatment

tempering, cementiting, quenching, etc.

Efficiency

94%~96% (depends on the transmission stage)

Noise (MAX)

60~68dB

Temp. rise (MAX)

40°C

Temp. rise (Oil)(MAX)

50°C

Vibration

≤20µm

Backlash

≤20Arcmin

Brand of bearings

China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, SKF, FAG, INA, NSK.

Brand of oil seal

CHINAMFG — ZheJiang or other brands requested

 

Our Advantages

 

 

Certifications

Packaging & Shipping

Company Profile

Xihu (West Lake) Dis.ng Transmission Equipment Co., Ltd. located HangZhou city, ZHangZhoug, as 1 professional manufacturer and exporter of cycloidal pin wheel reducer,worm reducer, gear reducer, gearbox , AC motor and relative spare parts, owns rich experience in this line for many years.

We are 1 direct factory, with advanced production equipment, the strong development team and producing capacity to offer quality products for customers.

Our products widely served to various industries of Metallurgy, Chemicals, lifting,mining,Petroleum,textile,medicine,wooden etc. Main markets: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to ask us any questions, good offer always for you for long term business.

FAQ

Q: Are you trading company or manufacturer?
A: We are factory.
 

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
 

Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q:How to choose a gearbox which meets your requirement?
A:You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.

Q: What information shall we give before placing a purchase order?
A:a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.

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Application: Motor, Machinery, Marine, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: 90 Degree
Layout: Coaxial
Gear Shape: Worm Gear
Step: Single-Step

worm gearbox

What are the Noise Levels Associated with Worm Gearboxes?

The noise levels associated with worm gearboxes can vary depending on several factors, including the design, quality, operating conditions, and maintenance of the gearbox. Here are some key points to consider:

  • Design and Quality: Well-designed and high-quality worm gearboxes tend to produce lower noise levels. Factors such as gear tooth profile, precision manufacturing, and proper alignment can contribute to reduced noise.
  • Gear Engagement: The way the worm and worm wheel engage and mesh with each other can impact noise levels. Proper tooth contact and alignment can help minimize noise during operation.
  • Lubrication: Inadequate or improper lubrication can lead to increased friction and wear, resulting in higher noise levels. Using the recommended lubricant and maintaining proper lubrication levels are important for noise reduction.
  • Operating Conditions: Operating the gearbox within its specified load and speed limits can help prevent excessive noise generation. Overloading or operating at high speeds beyond the gearbox’s capabilities can lead to increased noise.
  • Backlash: Excessive backlash or play between the gear teeth can lead to impact noise as the teeth engage. Proper backlash adjustment can help mitigate this issue.
  • Maintenance: Regular maintenance, including gear inspection, lubrication checks, and addressing any wear or damage, can help keep noise levels in check.

It’s important to note that while worm gearboxes can produce some noise due to the nature of gear meshing, proper design, maintenance, and operation can significantly reduce noise levels. If noise is a concern for your application, consulting with gearbox manufacturers and experts can provide insights into selecting the right gearbox type and implementing measures to minimize noise.

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

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China factory Saf Worm Gearboxes with Hollow Shaft for Extruders   automatic gearbox	China factory Saf Worm Gearboxes with Hollow Shaft for Extruders   automatic gearbox
editor by CX 2024-02-24

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