How Thin Section Bearings Power the Precision Inside Modern Cameras
As photography technology continues to evolve, modern cameras are becoming increasingly compact and lightweight—while also demanding higher internal precision and stability. At the heart of many of these mechanical movements lies the thin section bearing, playing a vital and often overlooked role.
Thin Section Bearings: Built for Compact Systems
Thin section bearings are high-performance bearings designed to minimize weight and space without sacrificing load capacity. They maintain consistent inner and outer diameters while drastically reducing cross-sectional thickness—making them ideal for tightly packed optical systems such as DSLRs, mirrorless cameras, industrial lenses, and medical imaging devices.
Key Applications of Thin Section Bearings in Cameras
Autofocus Modules
Thin section bearings reduce friction in moving parts, improving autofocus speed and accuracy for better shooting efficiency.
Zoom Lens Rotation
During lens extension or retraction, these bearings provide smooth, low-friction rotation for seamless zooming performance.
Image Stabilization Systems
In optical image stabilization units, bearings must support rapid micro-movements—thin section designs enhance responsiveness and reliability.
Noise Reduction
With their low-friction and silent operation, thin section bearings are crucial in noise-sensitive shooting environments, such as wildlife photography or video recording.
Common Bearing Types Used in Cameras
Depending on the internal structure and required performance, the following bearing types are widely used in camera systems:
Precision Ball Bearings
These bearings offer high-speed, high-accuracy rotation and are ideal for autofocus motors and zoom drives. They typically meet P5 or P4 precision grades.
Thin Section Ball Bearings
Designed with small cross-sections for compact assemblies. Common forms include:
C-Type (Deep Groove Ball Bearings)
A-Type (Angular Contact Ball Bearings)
X-Type (Four-Point Contact Ball Bearings)
Each type is tailored to support specific radial or axial load directions.
Both types can be customized with stainless steel or hybrid ceramic materials and are available with special lubricants or seals to withstand variable humidity, temperature shifts, and dust.
Better Bearings, Better Imaging
For manufacturers, choosing premium thin section bearings results in smoother assembly and superior product performance. For end users, this means faster focusing, quieter operation, and sharper images—enhancing the overall photography experience.
Welcome to contace us at sale@chg-bearing.com
