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Product Description
Definition and Basic Function
A drive chain (or power transmission chain) is a roller-connected mechanical component used to transfer rotational power from one shaft to another. It consists of interconnected metal links that mesh with sprockets to form a positive drive system with minimal slip.
Key Benefits
High efficiency (98% power transmission efficiency)
Compact design (space saving compared to belt drive)
Durable construction (heat-treated steel for long lasting durability)
Precise speed ratio retention (no slip)
High torque capacity (suitable for heavy loads)
Main Components
| Component |
Function |
Material |
| Inner Links |
Contain bushings |
Carbon steel |
| Outer Links |
Hold pins |
Alloy steel |
| Rollers |
Reduce friction |
Case-hardened steel |
| Pins |
Connect links |
Chrome-plated steel |
| Bushings |
Protect pins |
Sintered steel |
Common types of transmission chains
Roller chain (most common)
Standards: ANSI (US), ISO (metric), BS (British)
Series: 25 (light duty) to 240 (heavy duty industrial)
Silent (inverted tooth) chain
Features: smooth and quiet operation
Applications: automotive timing transmission, high-speed transmission
Plate chain
Structure: rollerless, parallel plates
Use: forklifts, lifting equipment
Engineering steel chain
Features: extra heavy duty
Applications: mining, oil drilling platforms
Technical specifications
Pitch: pin spacing (1/4 inch to 3 inches)
Width: inner plate spacing
Tensile strength: 1,500 pounds to more than 100,000 pounds
Speed limit: usually ≤ 3,000 rpm
Industrial Applications
| Industry |
Typical Use |
| Automotive |
Timing chains, transmission drives |
| Agriculture |
Combine harvesters, tractors |
| Manufacturing |
Conveyors, production line drives |
| Construction |
Excavators, cranes |
| Energy |
Wind turbines, oil pumps |
Maintenance best practices
Lubrication: Regular oil bath or drip lubrication
Alignment check: Prevents uneven wear
Tension adjustment: 2-4% of chain length
Wear monitoring: Measure elongation (maximum 3%)
We also provide Sprockets.
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