DSK W-Series Worm Gearbox from Daesung, Korea
The DSK W-Series worm gearbox from Daesung, Korea, features a compact design, right-angle transmission, and a wide range of gear ratios, making it ideal for conveyors, packaging machines, feeders, and industrial drive systems.
DSK W-Series Worm Gearbox from Daesung, Korea
The W-Series DSK is a line of worm gear reducers designed for right-angle industrial drive systems.
Overview of the W-Series DSK Worm Gearbox
W-Series DSK is a line of worm gear reducers from DSK Geared Motor / Daesung Industrial Co., Ltd. Machinery Division. The product is designed to reduce rotational speed, increase output torque, and provide a 90-degree right-angle transmission between the input and output shafts.
In industrial production lines, the W-Series DSK is commonly used for conveyors, packaging machines, feeders, rotary tables, turning mechanisms, light agitators, and equipment requiring low speed but stable pulling force.
The strengths of this series are its compact design, ease of installation, various gear ratios, and multiple input-output configurations to suit various types of machinery.
What Applications is the W-Series DSK Suitable For?
The W-Series DSK worm gearbox is suitable for systems requiring:
Speed reduction from an electric motor.
Increased output torque.
90-degree right-angle transmission.
Compact dimensions for easy machine integration.
Stable operation for light to medium loads.
Installation on conveyors, packaging machines, feeders, rotary tables, or light agitators.
For continuous heavy-duty applications, high-impact loads, or requirements for very high efficiency, it is necessary to carefully calculate torque, service factor, and operating time before selecting a model.
Key Features of the W-Series DSK
According to the W-Series catalog, this line of gearboxes has several notable features:
Feature | Practical Significance |
|---|---|
Aluminum alloy die-casting housing | Reduces weight, easy to install |
Multi-position mounting | Flexible for machine design |
Performance testing after assembly | Increases product reliability |
IEC flange | Easy to combine with standard motors |
Viton oil seal | Minimizes oil leakage |
Worm wheel with Tin Coating | Helps improve worm wheel lifespan |
Thanks to these features, the W-Series DSK is a suitable choice for common drive systems in factories, especially for applications requiring compact and easily replaceable gearboxes.
W-Series DSK Classification: W and WM
In the catalog, the W-Series DSK is divided into two main types:
Symbol | Meaning | Application |
|---|---|---|
WM | Type with input flange, for direct mounting with electric motor | Geared motor assembly, conveyors, packaging machines |
W | Type with input shaft, motor not attached | Transmission via coupling, pulley, belt, or separate mechanical system |
Additionally, the W-Series has options such as output flange, torque arm, extension worm shaft, single output shaft, and double output shaft.
How to Read the DSK W-Series Gearbox Code
Example model code:
WM-050-20-FL1-TA / 0.4kW - (160×14) - AI(DZ1/DZ2,SZ)
Component | Meaning |
|---|---|
WM | Type with input flange, direct motor mounting |
050 | Frame size 050 |
20 | Gear ratio 1/20 |
FL1 | Output flange type FL1 |
TA | With torque arm |
0.4kW | Attached motor power |
160×14 | Input flange dimensions / input size |
AI | Extension worm shaft |
DZ1 / DZ2 | Single output shaft |
SZ | Double output shaft |
Another example: W-040-30-F1 is a W-type, frame 040, gear ratio 1/30, with F1 output flange, and no motor included.
Frame Size Range and Gear Ratios
According to the catalog, the DSK W-Series has the following frame and gear ratio ranges:
Parameter | Selection Range |
|---|---|
Frame size | 25, 30, 40, 50, 63, 75, 90, 110, 130, 150, 185 |
Gear ratio | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
Input type | WM input flange / W input shaft |
Output shaft type | Single shaft / double shaft |
Options | Output flange, torque arm, extension worm shaft |
The wide range of gear ratios helps users easily select the appropriate output speed for each application.
Reference Output Speeds
The W-Series catalog includes characteristic tables based on a 4-pole motor at 1,720 rpm. Approximate output speeds can be referenced as follows:
Gear ratio | Approximate output speed |
|---|---|
7.5 | 233 rpm |
10 | 175 rpm |
15 | 117 rpm |
20 | 88 rpm |
30 | 58 rpm |
50 | 35 rpm |
100 | 18 rpm |
Actual speeds may vary depending on the motor, power frequency, load, and operating conditions.
Structure of the DSK W-Series Worm Gearbox
The structure of the W-Series DSK consists of a worm shaft, worm wheel, bearings, oil seals, housing, and lubrication system.
The basic structure of the W-Series DSK includes:
Worm shaft: Receives motion from the motor or input shaft.
Worm wheel: Meshes with the worm shaft to reduce speed and increase torque.
Bearing: Supports the shaft, ensuring stable motion.
Oil seal: Prevents lubricant leakage.
Gear box: Protects the entire transmission mechanism.
Input flange: Input mounting flange for the WM series.
Drain plug / air vent: Supports oil drainage, ventilation, and maintenance.
The operating principle of the W-Series is based on the meshing between the worm shaft and the worm wheel. When the worm shaft rotates, the worm wheel rotates more slowly, thereby reducing speed and increasing torque at the output shaft.
Advantages of the W-Series DSK
Compact Design
The worm-worm wheel structure gives the W-Series a compact size, suitable for machines requiring drive integration in limited spaces.
Right-Angle Transmission
The input and output shafts are typically arranged at a right angle, convenient for conveyors, packaging machines, rotary tables, and machine mechanisms with narrow designs.
Diverse Gear Ratios
The gear ratio range from 7.5 to 100 makes it easy to select the appropriate output speed for many industrial applications.
Easy Integration with Electric Motors
The WM series has an input flange, suitable for mounting with standard electric motors. This makes design, replacement, and maintenance more convenient.
Suitable for Many Factory Applications
The W-Series DSK can be used for conveyors, feeders, packaging machines, rotary tables, light agitators, and auxiliary drive assemblies.
Disadvantages to Note
Efficiency Not as High as Helical Gearboxes
Due to the worm-worm wheel characteristics, efficiency is generally lower than helical gearboxes or planetary gearboxes.
May Generate Heat Under Heavy Loads
If running heavy loads, high gear ratios, or continuous operation, worm gearboxes may generate more heat. It is necessary to select the correct service factor and lubricant.
Requires Proper Oil Maintenance
Lubricant directly affects the lifespan of the worm wheel, bearings, and oil seals. Do not operate without oil or with the wrong viscosity.
Not Suitable for High-Impact Loads Without Calculation
For impact loads, frequent reversing, or 24/7 operation, it is necessary to carefully check the safety factor before selecting.
Safety Factor When Selecting W-Series DSK
The safety factor helps determine the safety level of the gearbox based on load, running time, and start/stop frequency.
Operating Condition | Uniform Load | Medium Load | Heavy Load |
|---|---|---|---|
On/Off < 10 times/hour, run < 2 hours/day | 0.8 | 1.0 | 1.25 |
On/Off < 10 times/hour, run 2–8 hours/day | 1.0 | 1.25 | 1.5 |
On/Off < 10 times/hour, run 8–16 hours/day | 1.25 | 1.5 | 1.75 |
On/Off > 10 times/hour, run < 2 hours/day | 1.0 | 1.5 | 1.75 |
On/Off > 10 times/hour, run 2–8 hours/day | 1.25 | 1.75 | 2.0 |
On/Off > 10 times/hour, run 8–24 hours/day | 1.75 | 2.0 | 2.25 |
For heavy loads or high start/stop frequency, a higher service factor should be chosen to increase durability and reduce the risk of overload.
Lubrication and Maintenance Guide
According to the catalog, sizes W25–W90 are pre-filled with lubricant and can be installed in positions specified in the catalog. For sizes W110–W185, the installation position must be determined beforehand; if not specified, the gearbox will be supplied with oil for B3 mounting.
Time | Recommendation |
|---|---|
First time | Change oil after 400 hours of operation |
Subsequent times | Change oil every 4,000 hours of operation |
Environment with large temperature changes or frequent On/Off | Should change oil sooner |
During maintenance, check oil level, oil color, oil leakage, noise, vibration, housing temperature, and oil seal condition.
Practical Applications of the W-Series DSK
The W-Series DSK is suitable for conveyors, packaging machines, feeders, rotary tables, and right-angle drive systems.
The W-Series DSK is commonly applied in:
Application | Reason for Suitability |
|---|---|
Light and medium conveyors | Requires low speed, stable pulling force |
Packaging machines | Requires compact design, uniform transmission |
Feeders | Requires stable rotational speed |
Rotary tables | Requires high gear ratio, slow motion |
Light agitators | Requires torque at low speed |
Turning mechanisms | Requires right-angle transmission, compact machine |
Production lines | Easy to install, easy to replace |
How to Select the Right W-Series DSK
To select the correct model, the following information must be determined:
Required Information | Suggested Check |
|---|---|
Gearbox type | Choose W input shaft or WM input flange |
Frame size | 25, 30, 40, 50, 63, 75, 90, 110, 130, 150, 185 |
Gear ratio | 7.5 to 100 |
Motor power | Choose according to actual load |
Output speed | Calculated by motor speed / gear ratio |
Required torque | Check according to load and safety factor |
Shaft type | Single shaft, double shaft, extension shaft |
Mounting type | Foot, flange, torque arm |
Mounting position | B3, B8, V5, V6, B6, B7 |
Working environment | Dust, humidity, temperature, operating hours |
If replacing an old gearbox, carefully measure shaft diameter, shaft length, keyway, bolt hole spacing, and mounting orientation.
Comparison of W-Series DSK with Gear Gearboxes
Criteria | W-Series DSK Worm | Gear Gearbox |
|---|---|---|
Transmission direction | 90° right angle | Parallel, coaxial, or right angle |
Size | Compact | Depends on type |
Efficiency | Medium | Usually higher |
High gear ratio | Easy to achieve in compact size | Requires multiple gear stages |
Continuous heavy load capacity | Needs careful checking | Usually better |
Suitable application | Conveyors, packaging machines, rotary tables | Heavy conveyors, crushers, mixers |
Where to Buy DSK W-Series Gearboxes?
When purchasing the W-Series DSK, businesses should choose a partner capable of providing technical advice, catalog cross-referencing, installation dimension checks, and proposing models based on actual loads.
MDRIVE TECH provides industrial drive and automation solutions, including DSK W-Series worm gearboxes, DSK geared motors, gearboxes, electric motors, VFDs, and industrial control equipment.
MDRIVE TECH supports:
Consulting on W-Series DSK selection based on actual load.
Reading and cross-referencing W / WM model codes.
Checking gear ratios, output speeds, and torque.
Providing dimension drawings, catalogs, and technical specifications.
Consulting on replacing old gearboxes based on shaft dimensions, flanges, and mounting types.
Consulting on integration with electric motors, VFDs, and control systems.
FAQ – Frequently Asked Questions About W-Series DSK
What is the W-Series DSK?
The W-Series DSK is a line of worm gear reducers from DSK Geared Motor / Daesung Korea, used for speed reduction, torque increase, and right-angle transmission in industrial applications.
How do W and WM differ?
WM is the type with an input flange, used for direct mounting with an electric motor. W is the input shaft type, meaning it has a separate input shaft and is typically used with separate drive systems.
What gear ratios does the W-Series DSK have?
According to the catalog, the W-Series has gear ratios of 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, and 100.
What applications is the W-Series DSK used for?
This series is suitable for conveyors, packaging machines, feeders, rotary tables, turning mechanisms, light agitators, and drive systems requiring right-angle arrangements.
When should the W-Series DSK not be chosen?
It should not be chosen for high-impact loads, continuous heavy loads, or applications requiring very high efficiency without checking the service factor, torque, and operating conditions.
Contact for Consultation and Quotation of DSK Geared Motors
MDRIVETECH is a distributor and technical support provider for DSK Daesung geared motors in Vietnam. We assist customers in selecting the appropriate model based on power, gear ratio, output speed, mounting type, and actual application.
The technical team at MDRIVETECH is ready to provide drive solutions for factories, machine manufacturers, conveyor systems, automation lines, and industrial equipment.
Hotline: 0868 789 647
Email: [email protected]
Contact MDRIVETECH now for technical advice, product catalogs, and the latest quotations for the DSK W-Series gearbox.
