F5-12M
Miniature Thrust Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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F5-12M Bearing Product Overview & Core Advantages
The F5-12M is a metric thrust ball bearing engineered for applications requiring precise axial load capacity in compact spaces. This open-type bearing features a standard inner ring and grooved raceway washers, delivering reliable thrust load performance. Manufactured from chrome steel with a brass cage, it offers excellent durability and stable operation. With its miniature dimensions (5mm bore, 12mm OD, 4mm width) and high limiting speed of 5,000 rpm, it's ideal for precision mechanisms where space constraints and axial load requirements are critical.
F5-12M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| F5 | Series designation for miniature thrust ball bearings |
| 12 | Outside diameter: 12 mm |
| M | Metric system of measurement |
| Open Type | No seals or shields, requiring external lubrication |
F5-12M Bearing Structural Features & Performance Benefits
Precision Grooved Raceway Design: The shaft washer with grooved raceway ensures optimal ball guidance and load distribution, enhancing axial dynamic load rating (222 lbf) and operational stability.
High-Speed Brass Cage: The brass cage accurately spaces the seven chrome steel balls (1.588 mm diameter), enabling smooth rotation at limiting speeds up to 5,000 rpm while minimizing friction and heat generation.
Compact & Lightweight Construction: With a total bearing width of just 4 mm and weight of 2.1 g, this miniature bearing provides maximum performance in minimal space, ideal for compact assembly designs.
Precision Tolerance Control: Tight dimensional tolerances on bore diameter (-0.008mm to 0) and outside diameter (-0.008mm to 0) ensure precise fit and reliable performance in high-precision applications.
F5-12M Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment requiring accurate axial positioning
- Small Motors & Actuators: Stepper motors, micro motors, and linear actuators where space is limited
- Office Automation: Printers, scanners, and copiers for precise paper feed mechanisms
- Medical Devices: Dental handpieces, surgical instruments, and diagnostic equipment
- Automotive Electronics: Throttle controls, sensor mechanisms, and small automotive actuators
