DC7226 Sprag Clutch | Heavy Duty One Way Clutch
DC7226 Sprag Clutch is a heavy-duty DC Series one way freewheel clutch designed for industrial and automotive transmission applications. Featuring a 72.217mm inner diameter, 88.877mm outer diameter, 26.7mm height structure and 30 precision sprags, it delivers high torque transmission, reliable one-way locking and smooth overrunning performance. With enhanced structural strength and excellent durability, DC7226 is suitable for demanding mechanical drive systems. LSTO provides professional sprag clutch manufacturing, OEM customization and global supply solutions.
DC7226 Sprag Clutch | 26.7mm High Torque DC Series One Way Freewheel Clutch
Introduction: What Is DC7226 Sprag Clutch?
The DC7226 Sprag Clutch is a heavy-duty DC Series one way freewheel clutch designed for industrial machinery, automotive transmission systems and high-load mechanical drive applications.
Unlike traditional friction clutch systems, the DC7226 uses a precision sprag locking mechanism to achieve:
- One-way torque transmission
- Overrunning operation
- Backstop protection
- Reverse rotation prevention
When the driving shaft rotates in the locking direction:
- The internal sprags engage instantly
- Inner and outer races lock together
- Mechanical torque is transferred efficiently
When the driven component rotates faster:
- Sprags release automatically
- Freewheel operation begins
- Reverse torque is prevented
This design provides high efficiency, fast response and excellent durability for demanding power transmission systems.
Product Overview
| Item | Specification |
|---|---|
| Model | DC7226 |
| Product Type | Sprag Freewheel Clutch |
| Series | DC Series |
| Structure | One Way Sprag Clutch |
| Inner Diameter | 72.217 mm |
| Outer Diameter | 88.877 mm |
| Height | 26.7 mm |
| Number of Sprags | 30 Sprags |
| Torque Capacity | Approx. 1279 Nm |
| Application | Industrial / Automotive |
| Function | Overrunning & Backstopping |
Working Principle of DC7226 One Way Clutch
Locking Mode
During torque transmission:
- The driving shaft rotates.
- Sprag elements move into wedge locking position.
- Inner and outer races engage.
- Power is transmitted through mechanical contact.
Advantages:
- Instant locking response
- High torque efficiency
- No electronic control required
- Stable repeated operation
Overrunning Mode
During free rotation:
- Driven components exceed driving speed.
- Sprags release from locking position.
- Relative movement occurs.
- System operates smoothly.
This reduces unnecessary mechanical stress and improves transmission efficiency.
Key Features of DC7226 Sprag Clutch
1. 26.7mm High Structure Design
DC7226 adopts an enhanced height structure.
Compared with standard DC7221 versions:
| Model | Height |
|---|---|
| DC7221 Standard | 13.5 mm |
| DC7221B | 21 mm |
| DC7221C | 25.4 mm |
| DC7226 | 26.7 mm |
The increased height provides:
- Larger sprag contact support
- Improved mechanical stability
- Higher resistance to impact loads
- Longer service life
2. 30 Precision Sprag Locking System
DC7226 uses 30 precision sprag elements.
The multi-sprag structure provides:
| Feature | Benefit |
|---|---|
| 30 Sprags | Uniform torque distribution |
| Wedge locking design | Fast engagement |
| Precision cage | Stable positioning |
| Hardened material | Improved wear resistance |
3. High Torque Transmission Capability
The DC7226 series provides approximately:
1279 Nm Torque Capacity
Suitable for:
- Heavy industrial machinery
- Continuous-duty transmission systems
- Gearbox applications
- High-load mechanical drives
Application Areas
Industrial Equipment Applications
DC7226 is suitable for:
| Industry | Application |
|---|---|
| Conveyor Systems | Backstop protection |
| Elevator Equipment | Reverse prevention |
| Gearbox Systems | One-way transmission |
| Textile Machinery | Drive control |
| Heavy Machinery | Torque transmission |
DC series sprag clutches are commonly applied in equipment requiring overrunning and backstop functions.
Automotive & Mechanical Applications
Possible applications:
| Application | Function |
|---|---|
| Transmission Components | Direction control |
| Drive Systems | Torque transfer |
| Mechanical Assemblies | Overrunning |
| Power Systems | Reverse protection |
DC7226 Advantages Compared With Traditional Clutches
| Comparison | DC7226 Sprag Clutch | Friction Clutch |
|---|---|---|
| Locking Method | Mechanical wedge locking | Friction plates |
| Engagement Speed | Instant | Delayed |
| Energy Loss | Very Low | Higher |
| Maintenance | Low | Higher |
| Service Life | Long | Medium |
Why Choose LSTO DC7226 Sprag Clutch?
LSTO specializes in:
- DC Series Sprag Clutch
- Industrial Freewheel Clutch
- Automotive One Way Clutch
- Overrunning Clutch Components
Manufacturing Capability
Production processes:
- Precision CNC machining
- Heat treatment
- Surface grinding
- Assembly inspection
- Torque testing
Quality Control
| Inspection Item | Purpose |
|---|---|
| Raw Material Testing | Verify strength |
| Dimensional Inspection | Ensure accurate installation |
| Hardness Testing | Improve wear resistance |
| Performance Testing | Confirm locking capability |
OEM Replacement & Custom Manufacturing
LSTO provides:
- OEM replacement solutions
- Drawing-based manufacturing
- Customized dimensions
- Prototype testing
For international buyers:
| Service | Benefit |
|---|---|
| Engineering Support | Correct product selection |
| Sample Testing | Reduce development risk |
| Mass Production | Stable supply |
| Quality Control | Reliable performance |
How To Select A Sprag Clutch Supplier?
Professional buyers should evaluate:
Manufacturing Capability
Important factors:
- Sprag clutch production experience
- Precision machining capability
- Quality control system
Engineering Support
Supplier should provide:
- Application analysis
- Product matching
- Customized solutions
Supply Reliability
Evaluate:
- Production capacity
- Delivery performance
- Export experience
FAQ About DC7226 Sprag Clutch
What is DC7226 Sprag Clutch?
DC7226 is a heavy-duty DC Series one way freewheel clutch designed for industrial and automotive transmission applications.
What are the dimensions of DC7226?
Typical dimensions:
- Inner Diameter: 72.217 mm
- Outer Diameter: 88.877 mm
- Height: 26.7 mm
How many sprags does DC7226 have?
DC7226 uses:
30 precision sprag elements
for reliable locking performance.
What is the advantage of DC7226 compared with DC7221?
The main improvement is the increased height:
26.7mm high structure
which provides stronger support and improved durability for heavy-duty applications.
Can LSTO manufacture DC7226 replacement products?
Yes. LSTO provides OEM replacement and customized DC Series sprag clutch manufacturing according to customer drawings and application requirements.
Conclusion
The DC7226 Sprag Clutch is a heavy-duty DC Series one way freewheel clutch designed for industrial machinery and automotive transmission systems.
With its 26.7mm high structure, 30-sprag locking system, 72.217mm bore size and high torque transmission capability, DC7226 provides reliable one-direction locking, smooth overrunning performance and excellent durability.
LSTO specializes in Sprag Clutch, One Way Clutch and Freewheel Clutch manufacturing, providing OEM replacement, customized engineering solutions and global supply support.
