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

  • Supports combined radial and axial loads (one direction)

  • High rigidity due to tapered roller geometry

  • Excellent load distribution and mechanical stability

  • Separable design for easy installation and maintenance

  • Suitable for paired mounting with preload or clearance adjustment

  • Reliable performance in medium to high-speed operation

  • 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:

  • Mining machinery

  • Agricultural equipment

  • Construction machinery

  • Transportation systems

  • Industrial automation

  • Food processing machinery

  • Toys and power tools

  • 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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