F4-9 Thrust Ball Bearings
| F4-9 Thrust Ball Bearings | |||
|---|---|---|---|
| Part Number | F4-9 | Ball Number | 6 |
| d | 4 | Ball Size | 1.588 |
| B | 4 | Dynamic Load Co(N) | 800 |
| R | 0.15 | Static Load Cor(N) | 520 |
| D/D1 | 4.2/9 | Grease Speed | 8000 |
| Weight(Kg) | 0.0012 | Oil Speed | 12000 |
F4-9 Thrust Ball Bearing | 4x9x4mm Mini Flat Axial Thrust Bearings
Thrust ball bearings are professional rolling bearing units dedicated to unidirectional axial load support and shaft axial displacement control. Differing from conventional radial bearings designed for transverse force bearing, thrust bearings focus on vertical pressure resistance and fixed-axis stable rotation. With ultra-flat modular structure and diverse material configurations, these bearings deliver low-friction, long-cycle operation, suitable for precision micro machinery in dry, humid and corrosive working environments.
F4-9 Mini Thrust Bearing Product Overview
The F4-9 is a mainstream mini flat thrust ball bearing with precise standard dimensions of 4x9x4mm. It adopts a classic detachable three-piece structure, including upper shaft washer, lower housing washer and high-precision steel ball assembly. This axial-only bearing is designed exclusively for light unidirectional thrust loads and does not support radial force. Featuring expanded load-bearing contact area, easy plug-and-play installation and stable rotary accuracy, it is perfectly suited for compact precision equipment requiring strict axial positioning and long-term continuous operation.
F4-9 Bearing Material Properties And Industrial Applications
Bearing Steel: Premium standard bearing material with high hardness, excellent compressive wear resistance and strong mechanical fatigue resistance. It maintains smooth and stable rotation under long-term light axial loads, offering outstanding cost performance and low failure rate. Widely used in micro transmission modules, small motor assemblies, precision toy machinery and general industrial miniature positioning equipment.
304 Stainless Steel: Boasts reliable atmospheric anti-rust and anti-oxidation performance, adapting to conventional humid, dusty and open working scenarios. It retains consistent operational precision during long-cycle work, serving as an economical anti-corrosion solution for civilian electronic devices, light industrial micro fittings and ordinary low-load precision mechanical systems.
420 Stainless Steel: Combines high structural hardness and mechanical toughness with mild corrosion resistance. It effectively resists frequent start-stop friction and weak chemical medium erosion, ensuring accurate and jamming-free micro rotation. Ideal for portable precision instruments, small medical auxiliary equipment and miniature optical machinery systems.
440C Stainless Steel: Features ultra-high surface hardness and superior abrasion resistance, with excellent environmental adaptability to damp workshops and medium corrosive conditions. It effectively delays bearing wear and aging, avoiding operational stuck and failure. Extensively applied in micro automated components, small hydraulic matching parts and light chemical miniature mechanical equipment.
316 Stainless Steel: High-end customized anti-corrosion material with excellent salt spray, acid and alkali resistance, as well as superior high-humidity stability. It can operate stably in harsh corrosive environments, mainly used in miniature marine accessories, food sanitation processing equipment, chemical experimental instruments and sterile medical precision devices.
Core Advantages And Main Application Fields
The F4-9 mini flat thrust bearing stands out with standard dimensional accuracy, upgraded light-load bearing capacity, precise axial limit and mute low-friction operation. Diversified material options meet the environmental adaptation needs of different working conditions. It is widely applied in precision instrumentation, smart electronic products, micro automation equipment, miniature medical devices, food processing accessories and marine micro machinery, providing reliable and durable axial load-bearing and positioning solutions for various compact mechanical assemblies.
