Manufactured by CHG Bearing, the 672 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 2 mm bore diameter, a 4 mm outer diameter, and a 1.2 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
672 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 672 |
| Dimensions | |
| Bore Diameter (d) | 2 mm |
| Width (B) | 1.2 mm |
| Outer Diameter (D) | 4 mm |
| Open Width B | 1.2 mm |
| Radius rs min | 0.05 mm |
| Closed Width B1 | 2 mm |
| Performance | |
| Dynamic Load Cr (N) | 124 N |
| Static Load C0r (N) | 40 N |
| Grease Speed (x1000 rpm) | 91 x1000 rpm |
| Oil Speed (x1000 rpm) | 104 x1000 rpm |
| Design Configurations | |
| Open Model | 672 |
| Flanged Open Model | - |
| Shielded Model | 672ZZ |
| Flanged Shielded Model | - |
| 2RS | - |
| 2RU | - |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 8 |
| Ball Size Dw | 0.6 mm |
| Shielded Weight (g) | 0.07 g |
| Open Weight (g) | 0.05 g |
672 4 mm 2 mm 1.2 mm Frequently Asked Questions about 672 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs 672 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 672 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
To match diverse operational dynamics, CHG Bearing supplies 672 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
To extend the trouble-free lifespan of CHG Bearing 672, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
