chain-dat
chain gear Sprocket
chain types ?
| Chain Type | Pitch (P) | Internal Width (W) | Avg. Tensile Strength | Best Use Case |
|---|---|---|---|---|
| #25 (1/4") | 6.35 mm | 3.18 mm | ~4,000 N | Small, high-speed, lightweight. |
| T8F (8mm) | 8.00 mm | 4.80 mm | ~6,000 N | Heavy-duty scooters (High Torque). |
| #35 (3/8") | 9.53 mm | 4.77 mm | ~9,500 N | Go-karts / Heavy loads. |
main specs
- 06B
- 08B
specs
1. Chain — Main Parameters
| Parameter | Description | Unit / Example |
|---|---|---|
| Pitch (p) | Distance between adjacent roller centers | mm (e.g., 12.7, 15.875) |
| Roller Diameter (d₁) | Roller outer diameter | mm |
| Inner Width (b₁) | Inner width between chain plates (sprocket tooth fit) | mm |
| Chain Length | Total number of links × pitch | mm |
| Plate Thickness | Determines load capacity | mm |
| Tensile Strength / Rated Load | Maximum allowable tension the chain can carry | N or kN |
| Type / Series | Standard or series (ANSI, ISO, DIN, light/medium/heavy) | e.g., ANSI 40, DIN 08B-1 |
⚠️ Pitch is the most critical parameter. The chain and sprocket must have the same pitch to mesh correctly.
2. Sprocket — Main Parameters
| Parameter | Description | Unit / Example |
|---|---|---|
| Number of Teeth (z) | Sprocket tooth count; determines gear ratio | 10–120 teeth |
| Pitch (p) | Must match the chain pitch | mm |
| Tooth Profile Standard | Defines the tooth shape for proper engagement | ANSI, ISO, DIN |
| Outside Diameter (OD) | Useful for layout and clearance calculations | mm |
| Mounting Bore / Pin Hole Diameter | Sprocket mounting for shaft or bolts | mm |
| Thickness / Tooth Width | Must be compatible with chain inner width | mm |
| Material / Strength | Determines wear resistance and load capacity | Steel, cast iron, aluminum alloy |
⚠️ Tooth count and sprocket diameter set the drive ratio but do not affect mesh compatibility as long as the pitch is the same.
3. Key Fit and Selection Points
- Pitch match: The chain pitch must match the sprocket pitch exactly.
- Inner width: Sprocket tooth width must be less than or equal to the chain inner width.
- Profile standard: Chain and sprocket standards (ANSI, ISO, etc.) must match to avoid poor engagement and premature wear.
- Minimum sprocket tooth count: Too few teeth increases bending fatigue on the chain; typically choose ≥ 12 teeth when possible.
- Mounting alignment: Shaft diameter, keyway, and bolt pattern must match the sprocket mounting method.