Single Row Tapered Roller Bearings

What Are Single Row Tapered Roller Bearings?

Single row tapered roller bearings are specifically designed to accommodate combined radial and axial loads. The internal geometry features raceways and rollers that taper towards the bearing axis, allowing the bearing to manage force from multiple directions. This design reduces friction and increases stability, even under severe working conditions.

Construction and Design Features

• Composed of a tapered inner ring assembly (cone) and an outer ring (cup).
• The contact angle increases with higher axial load requirements, typically ranging from 10° to 30°.
• Raceway extensions converge at a common point on the bearing axis, ensuring true rolling motion and lower frictional torque.

Material Options

• Chrome steel (GCr15): Offers high load capacity and low noise for most industrial applications.
• Stainless steel (440C): Ideal for corrosion-resistant and high-speed environments, such as food processing and medical equipment.

Precision Grades

Available in ABEC-1 to ABEC-5:

• ABEC-1 / ABEC-3: Suitable for general-purpose applications.
• ABEC-5: Recommended for high-precision assemblies requiring minimal runout and noise.

Available Sizes

Bore diameters range from 7.937 mm to 1270 mm, available in both inch and metric specifications.

Sealing Configurations

• Open type
• Rubber-sealed type
• Metal-shielded type

Customized sealing solutions are available upon request.

Key Features and Benefits

1. Low Friction Operation

Optimized roller design and surface finishing enhance lubricant film formation, reducing wear and heat buildup.

2. Extended Service Life

Logarithmic raceway profiles distribute loads more evenly, lowering stress peaks and enhancing resistance to misalignment.

3. High Operational Reliability

Advanced surface treatment promotes consistent fluid lubrication under dynamic loads.

4. Consistency and Precision

Rollers are manufactured to ultra-precise tolerances, enabling even load distribution, low vibration, and quiet operation.

5. Preload and Rigidity

Can be paired with other tapered roller bearings to create rigid assemblies and optimize bearing stiffness.

6. Reduced Peak Temperature

Proper installation and lubrication reduce friction during the running-in period, preventing early wear and temperature spikes.

7. Interchangeability and Ease of Mounting

Inner and outer rings can be installed separately. Components are fully interchangeable for standardized sizes.

8. Custom Lubrication

Over 200 types of lubricants available, or use customer-specified oil or grease for tailored performance.

9. Temperature Resistance

Standard bearings operate up to 120°C continuously or 150°C intermittently. High-temperature versions available upon request.

Typical Applications

• Automotive drive axles, gearboxes, and wheels
• Gearing systems and transmissions
• Construction and mining equipment
• Railroad axle-boxes
• Port equipment and rubber machinery
• Machine tool spindles and gear reducers
• Agricultural equipment like rakes and tension rollers
• Aerospace wheels and aircraft landing gear

Why Choose Corebearing?

With many years of expertise in tapered roller bearing manufacturing, Corebearing serves thousands of global clients with superior quality and fast delivery. Our extensive stock includes hard-to-find sizes, and most orders can be shipped the same day.

Value-Added Services

• Custom-engineered bearing solutions based on real working conditions
• Expert technical support and global after-sales service
• Strong presence in the North American market (60% of our clients)

Interchangeable Brands

• SKF
• Timken