China Best Sales Sc17 Slewing Bearing Worm Gear for Mounted Crane Truck supplier

Product Description

Slewing bearing worm gear for mounted crane truck

Model Slewing Bearing SC17 Brand Coresun Drive
Holding Torque 72.3Kn.m Tilting Moment Torque 135.6Kn.m
Self-locking Yes Gear Ratio 102:1
Outer Dia. 480mm Inner Dia. 365mm
Rated Output Speed 1.47rpm Precison 0.17°

Rotary Bearing Installation How To Solve Gear Rotary Bearing To Bearing Between The Effect Of Mechanical System, Bearing, Rotating And Transmission System?

such as fixed several functions at a suit, rotating bearing itself has compact structure, correctly guide rotation is convenient, simple installation and maintenance is very easy to features, is widely used to heavy machinery, mining machine, construction engineering machinery, port machinery, wind power generation, medical equipment, radar detection and the cruise missile launcher and other large and medium-sized rotating devices.

The rotary support plays a very important role in the construction site of mechanical equipment operation, which is also due to the accuracy of its overall design.

And want to give full play to its high – quality auxiliary features, installation stage must also be considered carefully.

The structure of rotating support products is different for different types of mechanical equipment.

The Gear Difference Is A Relative High Precision Structural Characteristics Of Rotary Support, Before And After The Installation Must Do A Good Job In A Timely Manner.

1. Carefully before the installation of the appearance of the situation, to determine that the rotary support in the whole process of transport did not suffer great damage, such as serious rust, deformation, etc.;Determine if there is a soft belt CHINAMFG and if the gear vibrates heavily (the gear has heat treatment or the consumer has irregular timing).

2. Bolts shall have sufficient pre-tightening force during installation, and the pre-tightening force caused by the pre-tightening force shall be within the range of 0.6-0.7 times of the bolt yield limit.

Before the installation bolts are tightened, the size gear tooth adjustment shall be carried out, as shown in Figure 1(side gap), especially in gear heat treatment products, the large vibration point of the rotating supporting gear (marked with green paint) shall be ensured to meet the requirements of the pinion tooth matching.

3. After the installation should immediately eliminate the size of the gear in the middle, on the rotary support and all surrounding dirty, slow rotation rotary support around 3 weeks, carefully and carefully whether the operation is smooth, whether there is sound, intermittent status and the size of the gear tooth is normal.

Application
Slewing bearing worm gear for mounted crane truck
Turntable rotary drive gear reducer for man lift crane and aerial working platform

Coresun Drive Relevant Certification as following 

CONTACT US

It is sincerely looking CHINAMFG to cooperating with you for and providing you the best quality product & service with all of our heart!

IP Class: IP65
Gear Ratio: 102:1
Static Radial Laod: 390kn
Color: Grey
Static Axial Load: 970kn
Output Torque: 12.24kn.M
Customization:
Available

|

Customized Request

worm gear

What lubrication is required for a worm gear?

The lubrication requirements for a worm gear system are crucial to ensure smooth operation, reduce friction, prevent wear, and extend the lifespan of the gears. The specific lubrication needed may vary depending on factors such as the application, operating conditions, gear materials, and manufacturer recommendations. Here are some key considerations regarding lubrication for a worm gear:

  • Lubricant selection: Choose a lubricant specifically designed for gear applications, taking into account factors such as load, speed, temperature, and environment. Common lubricant types for worm gears include mineral oils, synthetic oils, and greases. Consult the gear manufacturer’s recommendations or industry standards to determine the appropriate lubricant type and viscosity grade.
  • Viscosity: The lubricant viscosity is critical for effective lubrication. The viscosity should be selected based on the operating conditions and gear design parameters. Higher loads and slower speeds typically require higher viscosity lubricants to ensure sufficient film thickness and protection. Conversely, lower viscosity lubricants may be suitable for lighter loads and higher speeds to minimize power losses.
  • Lubrication method: The lubrication method can vary depending on the gear system design. Some worm gears have oil sumps or reservoirs that allow for oil bath lubrication, where the gears are partially submerged in a lubricant pool. Other systems may require periodic oil application or greasing. Follow the gear manufacturer’s guidelines for the appropriate lubrication method, frequency, and quantity.
  • Temperature considerations: Worm gear systems may encounter a wide range of temperatures during operation. Ensure that the selected lubricant can withstand the anticipated temperature extremes without significant degradation or viscosity changes. Extreme temperatures may require specialized high-temperature or low-temperature lubricants to maintain proper lubrication performance.
  • Maintenance and monitoring: Regular maintenance and monitoring of the lubrication are essential for optimal gear performance. Periodically inspect the lubricant condition, including its cleanliness, viscosity, and contamination levels. Monitor operating temperatures and perform oil analysis if necessary. Replace the lubricant at recommended intervals or if signs of degradation or contamination are observed.

It’s important to note that the lubrication requirements may vary for different worm gear applications, such as automotive, industrial machinery, or marine systems. Additionally, environmental factors such as dust, moisture, or chemical exposure should be considered when selecting a lubricant and establishing a lubrication maintenance plan.

Always refer to the gear manufacturer’s recommendations and guidelines for the specific lubrication requirements of your worm gear system. Adhering to proper lubrication practices helps ensure smooth and reliable operation, minimizes wear, and maximizes the gear system’s longevity.

worm gear

Can worm gears be used in both horizontal and vertical orientations?

Yes, worm gears can be used in both horizontal and vertical orientations. Here’s a detailed explanation of the suitability of worm gears for different orientations:

1. Horizontal Orientation: Worm gears are commonly used in horizontal orientations and are well-suited for such applications. In a horizontal configuration, the worm gear’s weight is primarily supported by the bearings and housing. The lubrication and load-carrying capabilities of the gear design are optimized for horizontal operation, allowing for efficient power transmission and torque generation. Horizontal worm gear applications include conveyor systems, mixers, mills, and many other industrial machinery setups.

2. Vertical Orientation: Worm gears can also be used in vertical orientations, although there are some additional considerations to address in such cases. In a vertical configuration, the weight of the worm gear exerts an axial force on the worm shaft, which can introduce additional load and affect the gear’s performance. To ensure proper operation in a vertical orientation, the following factors should be considered:

  • Thrust load handling: Vertical orientations impose a thrust load on the worm gear due to the weight of the gear and any additional external loads. The gear design should be capable of handling and transmitting this thrust load without excessive wear or deformation. Proper bearing selection and lubrication are crucial to support the axial load and maintain optimal performance.
  • Lubrication: Lubrication becomes even more critical in vertical worm gear applications. Adequate lubrication ensures proper lubricant film formation to minimize friction, reduce wear, and dissipate heat generated during operation. Careful consideration should be given to the lubricant type, viscosity, and lubrication method to ensure effective lubrication, particularly in the upper parts of the gear where lubricant distribution may be more challenging.
  • Backlash control: In vertical orientations, gravity can cause the load to act on the gear in the opposite direction, potentially leading to increased backlash. Proper gear design, including tooth geometry and clearance adjustments, can help minimize backlash and ensure precise motion control and positional stability.
  • Bearing selection: The choice of bearings becomes crucial in vertical worm gear applications. Thrust bearings or combinations of thrust and radial bearings may be required to handle the axial and radial loads effectively. Bearings with appropriate load-carrying capacities and stiffness are selected to ensure smooth operation and minimize deflection under vertical loads.
  • Sealing: Vertical orientations may require additional sealing measures to prevent lubricant leakage and ingress of contaminants. Proper sealing and protection mechanisms, such as seals or gaskets, should be implemented to maintain the integrity of the gear system and ensure reliable operation.

In summary, worm gears can be utilized in both horizontal and vertical orientations. However, certain considerations related to thrust load handling, lubrication, backlash control, bearing selection, and sealing should be taken into account for vertical applications. By addressing these factors appropriately, worm gears can effectively transmit power and torque, whether in horizontal or vertical configurations.

worm gear

Are there different types of worm gears available?

Yes, there are different types of worm gears available to suit various applications and requirements. Here are some of the commonly used types:

Single Enveloping Worm Gear:

The single enveloping worm gear, also known as a cylindrical worm gear, has cylindrical teeth on the worm wheel that mesh with the helical thread of the worm. The teeth of the worm wheel wrap around the worm in a single enveloping manner. This design provides better contact and load distribution, resulting in higher load-carrying capacity and smoother operation. Single enveloping worm gears are commonly used in heavy-duty applications where high torque transmission is required.

Double Enveloping Worm Gear:

The double enveloping worm gear is a specialized type of worm gear that provides even greater load-carrying capacity compared to the single enveloping design. In a double enveloping worm gear, both the worm and the worm wheel have curved tooth profiles. The teeth of the worm wrap around the worm wheel while the teeth of the worm wheel wrap around the worm. This double enveloping action increases the contact area, improves load distribution, and enhances the gear’s efficiency. Double enveloping worm gears are used in applications that demand high torque and precision, such as aerospace and defense industries.

Non-enveloping Worm Gear:

The non-enveloping worm gear, also known as a non-throated worm gear, has a worm wheel with teeth that do not fully wrap around the worm. Instead, the worm wheel has straight or slightly curved teeth that engage with the helical thread of the worm. Non-enveloping worm gears are simpler in design and less expensive to manufacture compared to enveloping worm gears. They are commonly used in applications with moderate loads and where cost is a consideration.

Self-locking Worm Gear:

Self-locking worm gears are designed with a specific helix angle of the worm’s thread to provide a self-locking effect. This means that when the worm is not actively driving the worm wheel, the worm wheel is prevented from rotating backward and can hold its position securely. Self-locking worm gears find applications in systems where holding position or preventing backdriving is crucial, such as elevators, lifts, and certain industrial machinery.

These are just a few examples of the different types of worm gears available. The choice of worm gear type depends on factors such as the application requirements, load capacity, efficiency, and cost considerations.

China Best Sales Sc17 Slewing Bearing Worm Gear for Mounted Crane Truck supplier China Best Sales Sc17 Slewing Bearing Worm Gear for Mounted Crane Truck supplier
editor by CX 2023-09-12