Worm Reducer-Replacement of Elecon Double Reduction Worm Gear Unit SFVD 5/120
SFVD 5/120 Worm Gear Unit
The SFVD 5/120 Worm Gear Unit is a series of double reduction worm gearboxes designed to meet the needs of slow-speed machines. The gearbox has a minimum reduction ratio of 75:1 and a maximum reduction ratio of 4900:1. It can be used in underdrive, overdrive, and vertical mounting conditions. Our company provides Elecon-brand replacement worm reducers that are of high quality and available at competitive prices. Please note that our products are replacement parts and not original parts. If you need to purchase original parts, please contact the original supplier. See the image below for a visual representation of the SFVD 5/120 Worm Gear Unit:

Features of SFVD 5/120 Worm Gear Unit
The SFVD 5/120 Worm Gear Unit is made up of two single reduction worm gearboxes. The main worm unit is specially designed to be installed as a whole on a standard single worm unit that makes up the second stage. The whole gear device is compact and robust, making it suitable for slow-moving machinery. The transmission ratio range is wide, from 75:1 to 4900:1. These gear devices are particularly suitable for high torque and low-speed drives. The worm gear transmission complies with the BS-721 standard. See the images below for a closer look at the gear device:
Worm Gear Unit Structure

SFVD 5/120 Worm Gear Unit Size

Applications of SFVD 5/120 Worm Gear Unit
- Conveyors
- Elevators
- Pumps
- Mixers
- Crushers
The SFVD 5/120 Worm Gear Unit can be used in a wide range of applications, such as those listed above. For more information on the applications of SFVD 5/120 Worm Gear Unit, please refer to the image below:

Maintenance of SFVD 5/120 Worm Gear Unit
- When hoisting the gear unit, use a lifting ring bolt or lifting point (on larger units).
- Before commissioning, check the level and quantity of lubricating oil. Read and execute the lubricating oil plate and installation instructions.
- Installation must be carried out according to the manufacturer's instructions and by personnel qualified to do so. Installation must be carried out by personnel qualified to do so.
- Ensure proper maintenance of the gearbox during operation.
- Check the oil level regularly and top up if necessary.
- The operating speed, transmission power, torque generated, or external load must not exceed the design value.
- The drive and driven equipment must be selected correctly to ensure satisfactory performance of the entire mechanical system, such as avoiding system critical speeds and system torsional vibrations.
For more information on the maintenance of SFVD 5/120 Worm Gear Unit, please refer to the image below:

Possible Issues, Causes, and Solutions
| Possible Issues | Causes | Solutions |
|---|---|---|
| Abnormal noise | Loose gear unit, insufficient lubrication, worn gears, damaged bearings | Tighten the gear unit, add lubrication, replace worn gears, replace damaged bearings |
| Oil leakage | Worn or damaged seal, damaged gear unit housing | Replace worn or damaged seal, replace damaged gear unit housing |
| Overheating | Insufficient lubrication, blocked oil passage, worn gears, damaged bearings | Add lubrication, unblock oil passage, replace worn gears, replace damaged bearings |
| Shaft breakage | Overload, improper installation, damaged bearings | Reduce the load, reinstall properly, replace damaged bearings |
| Abnormal vibration | Loose gear unit, damaged gears, worn bearings | Tighten the gear unit, replace damaged gears, replace worn bearings |
| Abnormal sound during idle | Insufficient lubrication, worn gears, damaged bearings | Add lubrication, replace worn gears, replace damaged bearings |
| Abnormal sound during operation | Loose gear unit, worn gears, damaged bearings | Tighten the gear unit, replace worn gears, replace damaged bearings |
| Seizure | Insufficient lubrication, worn gears, damaged bearings | Add lubrication, replace worn gears, replace damaged bearings |

Elecon Worm Gear Unit Replacement
- High quality replacement for Elecon-brand worm reducers
- Competitive prices
- Customizable products based on customer requirements
- Replacement parts, not original parts
- Contact us for more information
For more information on Elecon Worm Gear Unit Replacement, please contact us. See the image below for a closer look at our products:

Motors for Worm Reducers
Worm reducers and electric motors are essential components of many industrial machines. Worm reducers convert high-speed rotations to low-speed rotations while increasing torque. Electric motors provide the initial high-speed rotation. Together, these components form a reliable and efficient power transmission system. Our company provides a wide range of electric motors for use with our worm reducers. For more information on our electric motors and their applications in combination with our worm reducers, please refer to the image below:

At HZPT, we specialize in the design, production, and sale of speed reducers. Our products are widely used in the equipment industry, food industry, car washing industry, packaging industry, transmission industry, automation industry, solar energy industry, and more. We have more than 20 years of experience in the industry and serve customers in Europe, America, Africa, Asia, and other regions. Our mission is to provide high-quality, high-energy-efficiency, and high-stability production. We use standardized production management methods to strictly control every aspect of production. Our gearboxes are known for their quality and reliability, and we offer competitive prices and exceptional customer service. Please explore our products and contact us for more information or to place an order. See the image below for a closer look at our factory:

Q&A
Q: What is the standard for the worm gear unit transmission of SFVD 5/120 Worm Gear Unit?
A: The transmission of the SFVD 5/120 Worm Gear Unit complies with the BS-721 standard.
Q: What is the maximum reduction ratio of SFVD 5/120 Worm Gear Unit?
A: The maximum reduction ratio of SFVD 5/120 Worm Gear Unit is 4900:1.
Q: Is the SFVD 5/120 Worm Gear Unit suitable for high-speed applications?
A: No, the SFVD 5/120 Worm Gear Unit is designed for slow-speed machines and is not suitable for high-speed applications.

