Wuxi FSK Transmission Bearing Co., Ltd fskbearing@hotmail.com 86-510-82713083
When equipment demands extreme space efficiency without compromising performance, engineers face a critical design challenge. The SKF 6902 thin-section deep groove ball bearing emerges as an ideal solution, combining compact dimensions with exceptional performance characteristics.
The SKF 6902 is an open-type thin-section deep groove ball bearing manufactured from premium bearing steel with standard radial internal clearance. Its defining characteristic is the remarkably slim cross-section, making it indispensable for space-constrained applications across multiple industrial sectors, particularly where high precision and reliability are paramount.
| Parameter | Value | Unit |
|---|---|---|
| Bore diameter (d) | 15 | mm |
| Outside diameter (D) | 28 | mm |
| Width (B) | 7 | mm |
| Cage type | Steel | - |
| Sealing/Shielding | Open | - |
| Dynamic load rating (Cr) | 4.36 | kN |
| Static load rating (Cor) | 2.24 | kN |
| Fatigue load limit (Cu) | 0.095 | kN |
| Reference speed | 56000 | r/min |
| Limiting speed | 34000 | r/min |
| Weight | 0.0160 | kg |
The 15mm bore diameter accommodates 15mm shafts, while the 28mm outside diameter requires corresponding housing dimensions. The 7mm width represents the thin-section profile that distinguishes this bearing series.
With a dynamic load rating of 4.36 kN and static load rating of 2.24 kN, the bearing handles moderate rotational and static loads effectively. The fatigue load limit of 0.095 kN requires careful consideration in applications involving repetitive loading cycles.
The theoretical reference speed of 56,000 r/min and operational limit of 34,000 r/min make this bearing suitable for high-speed applications, though actual performance depends on lubrication and cooling conditions.
The steel cage provides superior strength and wear resistance, maintaining proper ball spacing to minimize friction. The open design facilitates effective lubrication and heat dissipation, though additional protection may be necessary in dusty environments.
The SKF 6902 finds extensive use in demanding technical environments including medical imaging equipment (CT scanners, MRI machines), robotic systems (articulated arms, service robots), precision instrumentation (optical devices, measurement tools), aerospace components (engine systems, flight controls), textile machinery, and various automation systems.
Proper handling significantly extends bearing service life. Critical considerations include thorough component cleaning before installation, appropriate lubricant selection and maintenance, precise alignment to avoid undue stress, potential preloading for enhanced rigidity, and regular monitoring of operational parameters like temperature and vibration.
SKF represents over a century of bearing manufacturing expertise, maintaining its position as an industry leader through continuous innovation and uncompromising quality standards. The company's products are recognized globally for their reliability and performance consistency.
This thin-section solution combines space efficiency with the performance characteristics expected from premium bearings, offering design engineers a reliable component for compact applications where conventional bearings prove unsuitable.