Introduction
Circular flange linear bearing are high-precision linear motion support components featuring precision ball or roller designs and a round flange structure. They can be directly bolted to mounting surfaces, enabling low-friction, high-rigidity linear motion. Ideal for automation equipment, CNC machines, robotics, medical devices, and more, these bearings support long-life, high-load applications.
product highlights
1. High Precision
Precision grinding ensures linearity error ≤0.002mm and motion accuracy.
Optimized ball-race contact angles reduce noise to ≤30dB.
2. High Load Capacity
Dynamic load range: 226N~3068N (varies by model).
Static load range: 310N~4400N (varies by model).
3. Corrosion Resistance
Hard chrome-plated surface (≥0.02mm thickness) passes salt spray test ≥500 hours.
Optional stainless steel (304/316) for humid or corrosive environments.
4. Easy Installation & Maintenance
Round flange design with ±0.1mm mounting hole tolerance for quick positioning.
Built-in sealing lips prevent dust ingress, extending maintenance intervals by 30%.
Product Information

Application Scenarios




Installation Guide
1. Shaft Matching: Ensure shaft diameter tolerance H7/g6 with surface roughness Ra≤0.8μm.
2. Parallelism Calibration: Mounting surface-to-shaft parallelism error ≤0.05mm/100mm.
3. Preload Adjustment: Adjust preload based on load requirements to avoid excessive friction.
4. Lubrication Maintenance: Re-grease every 100 hours of operation; shorten intervals in high-temperature environments.
After-Sales Service
• 1-Year Warranty: Free replacement for non-human-caused defects.
• Technical Support: Selection calculations, installation guidance, and customized solutions.
• Quick Response: 7×24-hour online support, issue resolution within 48 hours.
FAQ
Q: How do I select the right Circular flange linear bearing model?
A: Choose based on:
Inner diameter: Match the shaft diameter (standard ID 6~50mm, shaft tolerance H7/g6 recommended).
Load requirements: Dynamic/static load should exceed actual working loads (refer to model load parameters).
Environmental conditions: Select stainless steel (304/316) for humid/corrosive environments; high-temperature models (-40~150℃) for hot scenarios.
Accuracy needs: Standard P5 class; P4/P2 available for high-precision equipment (customizable).
Q: What installation tips should I note?
A:Flat mounting surface: Surface roughness Ra≤0.8μm to prevent deformation and 卡顿 (jamming).
Parallelism check: Mounting surface-to-shaft parallelism ≤0.05mm/100mm, verified with a dial indicator.
Bolt torque: Use specified torque for flange size (e.g., M4 bolts: 5~7N·m) to avoid bearing damage from over-tightening.
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