GF Bearing vs. Plain Bearing: Smarter Design for Solar Trackers
In solar tracking systems, bearing performance is critical to long-term stability and smooth operation. This article compares two commonly used structures: the GF bearing Assembly and the traditional Plain bearing Assembly. Here's why GF bearings offer a smarter solution.
Introduction – Features of GF bearings
- High mechanical strength
- Durability
- Superior UV and Weather Resistance
- Maintenance-Free
- ±10° Swing angle
- Environmental Adaptability
- Easy Installation
GF bearings VS. Plain bearings
|
Feature |
GF bearing Assembly |
Plain bearing Assembly |
|---|---|---|
|
Swing Angle |
  |
 |
|
Installation |
Easy and fast; no need for high-precision alignment |
Slower; high installation accuracy required |
|
Inner bearing Retention |
Ball core securely fixed, not easy to fall out |
Ball may fall out under long-term radial stress |
|
Tolerance to Structural Deformation |
Can accommodate slight tracker deformation or misalignment |
Sensitive to misalignment; performance degrades with structure shift |
| Maintenance |
Low friction, low noise, maintenance-free |
May require periodic inspection or lubrication depending on material |
Why GF bearings Are Better Than Plain bearings?
-
±10° Swing Angle – Allows self-alignment and absorbs structural deformation.
-
Easy Installation – No need for perfect alignment or ground flatness.
-
Secure Inner Core – Ball core is tightly fixed and won't fall out under long-term axial load.
-
More Reliable – Better long-term performance with lower failure risk.
Conclusion
GF bearings offer a smarter, more robust solution for solar tracker systems by combining flexibility, easy installation, and long-term reliability. For developers and EPC contractors seeking lower maintenance and better performance, the GF bearing is the clear choice over traditional plain bearing designs.