ZOOMRY
Selecting the correct conveyor roller diameter and bearing combination is essential for belt conveyor performance and service life. As a professional bulk material handling solution provider, ZOOMRY manufactures a complete range of conveyor rollers and Conveyor idlers for mining, cement, and port applications. Common conveyor roller diameters are 89 mm, 108 mm, 133 mm, 159 mm, and 194 mm. Common bearings are 6204, 6205, 6305, 6306, 6307, 6308, and 6309. The chart below shows the compatibility between roller diameter, bearing type, and belt width.
Conveyor Roller Diameter & Bearing Compatibility Chart
The table below shows which roller diameter and bearing combinations are compatible with each belt width (160 mm through 1,120 mm). Use this reference when selecting replacement rollers or designing new conveyor systems.
| Diameter | Bearing | 160 | 200 | 250 | 315 | 380 | 465 | 530 | 600 | 670 | 750 | 800 | 900 | 950 | 1050 | 1120 |
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| 89mm | 6204 | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6205 | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 108mm | 6204 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6205 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6305 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6306 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 133mm | 6205 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6305 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6306 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 159mm | 6305 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6306 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| 6307 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| 6308 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| 194mm | 6307 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 6308 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| 6309 |
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✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
✓ = Compatible combination. Belt widths in mm. Data reference for standard ZOOMRY conveyor roller configurations.
How to Use This Chart
To select the right roller for your conveyor:
- Identify your belt width from the top row
- Find the desired roller diameter in the left column
- The checkmarks (✓) indicate compatible bearing options for that diameter/belt width combination
Quick reference: For standard quarry conveyors with 800 mm belts, 133 mm diameter rollers with 6305 or 6306 bearings are common. For heavy-duty mining conveyors with wider belts, 159 mm or 194 mm diameter rollers with larger bearings (6307–6309) provide the necessary load capacity. For corrosive environments, HDPE rollers offer an alternative to steel with 40,000+ hour service life.
Related Equipment
Heavy-duty steel rollers with 50,000+ hour service life and precision bearings.
Complete range of CEMA B, C, D, and E idlers for all conveyor applications.
Corrosion-resistant rollers for salt, fertilizer, and chemical processing environments.
Industry Solutions
Large-diameter 159mm+ rollers with heavy-duty bearings for abrasive ore conveyors.
HDPE rollers with corrosion-resistant bearings for salt handling environments.
Need Conveyor Rollers with Specific Diameter & Bearing?
Contact ZOOMRY for conveyor roller specifications, bearing options, and material recommendations tailored to your belt width and operating conditions.
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