High Load Single Row Tapered Roller Bearings
Single row tapered roller bearings are engineered to support combined loads, primarily high radial loads together with axial forces acting in one direction.
Single row tapered roller bearings are engineered to support combined loads, primarily high radial loads together with axial forces acting in one direction. The tapered geometry of the rollers and raceways ensures efficient load distribution, reduced stress concentration, and high structural rigidity, making these bearings highly reliable in demanding mechanical systems.
Because axial load generates a corresponding radial reaction force, single row tapered roller bearings are typically installed in matched pairs and adjusted with controlled clearance or preload to ensure optimal performance. Their separable design allows the inner ring (cone) and outer ring (cup) to be mounted independently, significantly simplifying installation, inspection, and maintenance.
These bearings provide excellent load capacity, precise guidance, and stable rotational performance, making them suitable for medium to high-speed applications where both durability and accuracy are required.
Key Features
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Supports combined radial and axial loads (one direction)
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High rigidity due to tapered roller geometry
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Excellent load distribution and mechanical stability
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Separable design for easy installation and maintenance
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Suitable for paired mounting with preload or clearance adjustment
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Reliable performance in medium to high-speed operation
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Wide range of sizes for industrial flexibility
Technical Parameters
| Designation | Bore Diameter (mm) | Outside Diameter (mm) | Width (mm) | Basic Dynamic Load Rating (kN) | Limiting Speed (r/min) | Rows | Seal Type | Load Direction |
|---|---|---|---|---|---|---|---|---|
| 30215 | 75 | 130 | 27 | 171 | 3000 | Single row | Without | Radial |
| 30214 | 70 | 125 | 26 | 125 | 3000 | Single row | Without | Radial |
| 30209 | 45 | 85 | 21 | 81.6 | 4000 | Single row | Without | Radial |
| 30208 | 40 | 80 | 20 | 75.8 | 4250 | Single row | Without | Radial |
| 30204 | 20 | 47 | 15 | 34.1 | 7500 | Single row | Without | Radial |
| 30202 | 15 | 35 | 12 | 18.5 | 10000 | Single row | Without | Radial |
| 30311 | 35 | 120 | 32 | 176 | 1680 | Single row | Without | Radial |
| 30307 | 35 | 80 | 23 | 88.9 | 2700 | Single row | Without | Radial |
| 30305/VA983 | 25 | 62 | 18 | 48.6 | 3600 | Single row | Without | Radial |
| 30302 | 15 | 42 | 14 | 27.7 | 5400 | Single row | Without | Radial |
| 30234 | 170 | 310 | 57 | 657 | 1000 | Single row | Without | Radial |
| 30211/VA983 | 55 | 100 | 23 | 94.8 | 2010 | Single row | Without | Radial |
| 30206 J2/Q | 30 | 62 | 17 | 40.2 | 3300 | Single row | Without | Radial |
| 30204/VA983 | 20 | 47 | 15 | 29.6 | 4500 | Single row | Without | Radial |
| 30204 J2/Q | 20 | 47 | 15 | 99.1 | 2400 | Single row | Without | Radial |
| 30207/VA983 | 35 | 72 | 18 | 56.5 | 2850 | Single row | Without | Radial |
| 30206/VA983 | 30 | 62 | 17 | 45.3 | 3300 | Single row | Without | Radial |
| 30203 | 17 | 40 | 13 | 23.4 | 3600 | Single row | Without | Radial |
Applications
Single row tapered roller bearings are widely used in heavy-duty and precision mechanical systems, including:
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Mining machinery
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Agricultural equipment
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Construction machinery
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Transportation systems
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Industrial automation
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Food processing machinery
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Toys and power tools
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Smelting and metallurgical industry
With their strong load-carrying capacity and reliable combined load performance, these bearings are essential components in systems requiring durability, precision, and stable operation under challenging working conditions.
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