DC5476B Sprag Clutch | Industrial One Way Clutch
DC5476B Sprag Clutch is a high-performance DC Series one way freewheel clutch designed for industrial and automotive transmission applications. Featuring a 54.765mm inner diameter, 71.425mm outer diameter, 21mm height structure and 24 precision sprags, it provides reliable torque transmission, fast locking response and smooth overrunning operation. With high load capability and durable construction, DC5476B is ideal for demanding power transmission systems. LSTO provides professional sprag clutch manufacturing, OEM customization and global supply solutions.
DC5476B Sprag Clutch | 21mm Height DC Series One Way Freewheel Clutch
Introduction: What Is DC5476B Sprag Clutch?
The DC5476B Sprag Clutch is a precision-engineered DC Series one way freewheel clutch designed for industrial machinery, automotive transmission systems and mechanical power transmission applications.
Using advanced sprag locking technology, DC5476B provides automatic switching between locking and freewheel modes.
Its main functions include:
- One-direction torque transmission
- Overrunning operation
- Reverse rotation prevention
- Backstop protection
Unlike friction-based clutch systems, a sprag clutch uses multiple wedge-shaped locking elements to achieve direct mechanical engagement.
When torque is applied:
- Sprags move into locking position
- Inner and outer races engage
- Torque is transmitted efficiently
When overrunning occurs:
- Sprags release automatically
- Free rotation is allowed
- System stress is reduced
This makes DC5476B suitable for high-reliability transmission applications requiring long service life.
Product Overview
| Item | Specification |
|---|---|
| Model | DC5476B |
| Product Type | Sprag Freewheel Clutch |
| Series | DC Series |
| Structure | Sprag Type One Way Clutch |
| Inner Diameter | 54.765 mm |
| Outer Diameter | 71.425 mm |
| Height | 21 mm |
| Number of Sprags | 24 Sprags |
| Torque Capacity | Approx. 615-769 Nm |
| Application | Industrial / Automotive |
| Function | Overrunning & Backstopping |
Working Principle of DC5476B One Way Clutch
Locking Operation
During power transmission:
- Driving shaft rotates.
- Internal sprags tilt into locking position.
- Inner and outer races become connected.
- Torque transfers through mechanical contact.
Advantages:
- Fast engagement
- High torque efficiency
- Reliable power transmission
- Low energy loss
Freewheel Operation
During overrunning:
- Driven component rotates faster.
- Sprag elements release.
- Relative movement is allowed.
- Reverse torque is prevented.
This automatic switching improves mechanical efficiency and protects transmission components.
Key Features of DC5476B Sprag Clutch
1. 21mm High Structure Design
DC5476B adopts a 21mm height B-type structure.
Compared with standard DC5476:
| Model | Height |
|---|---|
| DC5476 Standard | 13.5 mm |
| DC5476A | 16 mm |
| DC5476B | 21 mm |
| DC5476C | 25.4 mm |
The higher structure provides:
- Larger sprag support area
- Improved load distribution
- Higher torque capability
- Better operating stability
2. 24 Sprag Precision Locking System
DC5476B uses 24 precision sprags to achieve reliable one-way locking.
Advantages:
| Feature | Benefit |
|---|---|
| 24 sprags | Balanced load distribution |
| Wedge locking design | Instant engagement |
| Precision cage structure | Stable operation |
| Hardened components | Improved wear resistance |
3. High Torque Transmission Performance
With torque capacity up to approximately 615 Nm or higher depending on specification, DC5476B is suitable for medium and heavy-duty transmission applications.
Typical requirements:
- Continuous operation
- Frequent start-stop cycles
- High mechanical load
- Reliable directional control
Application Areas
Automotive Transmission Applications
DC5476B can be used in:
| Application | Function |
|---|---|
| Transmission System | One-way torque control |
| Drive Assembly | Rotation management |
| Mechanical Components | Overrunning |
| Power Transmission | Torque transfer |
Industrial Equipment Applications
Typical industrial uses:
| Industry | Function |
|---|---|
| Conveyor Equipment | Backstop protection |
| Textile Machinery | One-way drive |
| Elevator Equipment | Reverse prevention |
| Gearbox Systems | Torque control |
DC5476B Advantages Compared With Traditional Clutch
| Comparison | DC5476B Sprag Clutch | Friction Clutch |
|---|---|---|
| Locking Method | Mechanical sprag locking | Friction plates |
| Response Speed | Instant | Slower |
| Slip Loss | Very Low | Higher |
| Maintenance | Reduced | More frequent |
| Service Life | Long | Medium |
Why Choose LSTO DC5476B Sprag Clutch?
LSTO specializes in:
- DC Series Sprag Clutch
- Automotive One Way Clutch
- Industrial Freewheel Clutch
- Transmission Overrunning Clutch
Manufacturing Capability
Production process:
- CNC precision machining
- Heat treatment
- Grinding processing
- Assembly inspection
- Performance testing
Quality Control
| Inspection Item | Purpose |
|---|---|
| Material Analysis | Verify steel quality |
| Dimensional Inspection | Ensure accurate installation |
| Hardness Testing | Improve durability |
| Torque Testing | Verify locking performance |
OEM Replacement & Custom Manufacturing
LSTO provides:
- OEM replacement production
- Custom dimension development
- Drawing-based manufacturing
- Sample testing
For global customers:
| Service | Benefit |
|---|---|
| Engineering support | Correct selection |
| Prototype validation | Reduce risk |
| Mass production | Stable supply |
| Quality management | Reliable performance |
How To Select A Professional Sprag Clutch Supplier?
Before purchasing DC series sprag clutches, buyers should evaluate:
Manufacturing Experience
Check:
- Sprag clutch production capability
- Precision machining technology
- Quality management system
Technical Support
A professional supplier should provide:
- Product selection assistance
- Application analysis
- Customized solutions
Supply Reliability
Important factors:
- Production capacity
- Delivery stability
- Export experience
FAQ About DC5476B Sprag Clutch
What is DC5476B Sprag Clutch?
DC5476B is a DC Series one way sprag freewheel clutch designed for industrial and automotive transmission applications.
What are the dimensions of DC5476B?
Standard dimensions:
- Inner diameter: 54.765 mm
- Outer diameter: 71.425 mm
- Height: 21 mm
How many sprags does DC5476B have?
DC5476B uses 24 precision sprag elements for reliable locking performance.
What is the advantage of DC5476B compared with DC5476?
The B version increases height to 21mm, providing stronger support and higher load capability compared with standard versions.
Can LSTO manufacture DC5476B replacement products?
Yes. LSTO provides OEM replacement and customized DC Series sprag clutch manufacturing solutions according to customer drawings and applications.
Conclusion
The DC5476B Sprag Clutch is a high-performance DC Series one way freewheel clutch designed for industrial machinery and automotive transmission systems.
With its 21mm high structure, 24-sprag locking design and high torque transmission capability, DC5476B delivers reliable one-direction locking, smooth overrunning performance and long service life.
LSTO specializes in Sprag Clutch, One Way Clutch and Freewheel Clutch manufacturing, providing OEM replacement, customized engineering support and stable global supply solutions.
