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4B sprockets and trailing wheels are manufactured from high grade heat treated steel to a minimum hardness of 57 HRC.
Each piece is machined to size with appropriate bore and keyway specific to each customer's application.
- Sizes Available: 102LA, 102NA, 125NA, 142NA, 142LA, 142HA, 150NA, 160NA, 175NA, 200NA, 216NA, 250NA, 260NA
- Now available: segmental star and self cleaning trailers.
Specifications
| Max Shaft Dia | Pitch Circle Dia. | Hub Width Dia - Smooth | Hub Width Dia - Segmental | Rim Width Dia. | ||
| Dia. A (mm) | Dia PCD (mm) | WB2 (mm) | WB3 (mm) | T (mm) | ||
| . | ||||||
| 4B102NA | 65 | 204 | 57 | 83 | 35 | |
| 4B102NA | 65 | 235.1 | 57 | 83 | 35 | |
| 4B102NA | 65 | 266.5 | 57 | 83 | 35 | |
| 4B102NA | 65 | 298.2 | 57 | 83 | 35 | |
| 4B102NA | 65 | 330.1 | 57 | 83 | 35 | |
| . | ||||||
| 4B142NA | 85 | 284 | 74 | 112 | 45 | |
| 4B142NA | 85 | 327.3 | 74 | 112 | 45 | |
| 4B142NA | 85 | 371.1 | 77 | 127 | 45 | |
| 4B142NA | 115 | 415.2 | 77 | 127 | 45 | |
| 4B142NA | 115 | 459.5 | 77 | 127 | 45 | |
| 4B142NA | 115 | 504 | 105 | 150 | 45 | |
| 4B142NA | 115 | 548.6 | 105 | 150 | 45 | |
| 4B142NA | 115 | 593.4 | 120 | 150 | 45 | |
| 4B142NA | 115 | 638.1 | 120 | 150 | 45 | |
| . | ||||||
| 4B142HA | 115 | 327.3 | 110 | 127 | 75 | |
| 4B142HA | 115 | 371.1 | 110 | 150 | 75 | |
| 4B142HA | 115 | 415.2 | 110 | 150 | 75 | |
| 4B142HA | 115 | 495.5 | 120 | 150 | 75 | |
| 4B142HA | 140 | 504 | 120 | 150 | 75 | |
| 4B142HA | 140 | 548.6 | 120 | 150 | 75 | |
| 4B142HA | 140 | 593.4 | 120 | 150 | 75 | |
| 4B142HA | 140 | 638.1 | 140 | 150 | 75 |
*Smooth and segmental trailers have different hub widths as noted (WB2 & WB3).
**Symmetric smooth trailers on demand.
4B offers any bore size to suit your requirements; consult with our engineers for recommended shaft diametre.
216NA and 260NA sizes are available; contact 4B for more information.
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Design Services
Chain Conveyor Design Service
Chain Conveyor Design Service
Take advantage of our free design service for chain conveyors.
Whether you want a new chain conveyor or you want to optimize an existing chain conveyor, our engineers at 4B can help you.
To get a free chain conveyor calculation
Please fill this form in as accurately as possible to allow us to deal with your enquiry more effectively.
Take advantage of our free design service for chain conveyors.
Whether you want a new chain conveyor or you want to optimize an existing chain conveyor, our engineers at 4B can help you.
To get a free chain conveyor calculation
Please fill this form in as accurately as possible to allow us to deal with your enquiry more effectively.