Single Row vs. Double Row Ball Bearings: What’s the Difference?

Time : Mai 21, 2025

When it comes to choosing the right ball bearing for your application, understanding the differences between single row and double row ball bearings is essential. Both types have their unique advantages, and selecting the right one can significantly improve the performance, durability, and efficiency of your equipment.

What Is a Single Row Ball Bearing?

A single row ball bearing consists of one row of balls running between the inner and outer rings. This type is the most commonly used bearing across a wide range of industries due to its simplicity, cost-effectiveness, and reliability.

Key features:

Designed for radial loads and limited axial loads in both directions
High-speed capability due to low friction
Compact and space-saving design
Easy to install and maintain

Common applications: Electric motors, household appliances, automotive wheels, industrial gearboxes.

What Is a Double Row Ball Bearing?

A double row ball bearing has two rows of balls running in parallel. This design allows it to carry higher radial loads and axial loads in both directions, offering greater strength and stability.

Key features:

Higher load-carrying capacity
Better rigidity and alignment control
Suitable for applications where space for separate bearings is limited
Can substitute for two single row bearings in some designs

Common applications: Heavy-duty machinery, pumps, conveyors, agricultural equipment.

Comparison Table

Feature	Single Row Bearing	Double Row Bearing
Load Capacity	Moderate	High
Axial Load Resistance	Limited	Good
Space Efficiency	Very Compact	More space needed
Speed Capability	Excellent	Moderate
Cost	Lower	Higher
Installation Complexity	Simple	Slightly more complex

Ball Bearing

Which One Should You Choose?

Choose single row bearings for high-speed, low-load applications where cost and space are primary concerns.
Choose double row bearings when load capacity, rigidity, and durability are critical, even if it comes at the cost of slightly more space and expense.

Need Help Choosing?

At Xinzhou Bearing, we supply a wide range of precision single and double row ball bearings tailored to your industry and application. Our engineering team is ready to assist you in finding the right solution for your needs.

👉 Contact us today for product recommendations or custom solutions.
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