Manufactured by CHG Bearing, the 679 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 9 mm bore diameter, a 14 mm outer diameter, and a 3 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.
679 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 679 |
| Dimensions | |
| Bore Diameter (d) | 9 mm |
| Width (B) | 3 mm |
| Outer Diameter (D) | 14 mm |
| Open Width B | 3 mm |
| Radius rs min | 0.1 mm |
| Flange Df | 15.5 mm |
| Closed Width B1 | 4.5 mm |
| Open Flange Width Bf | 0.8 mm |
| Closed Flange Width Bf1 | 0.8 mm |
| Performance | |
| Dynamic Load Cr (N) | 919 N |
| Static Load C0r (N) | 468 N |
| Grease Speed (x1000 rpm) | 36 x1000 rpm |
| Oil Speed (x1000 rpm) | 42 x1000 rpm |
| Design Configurations | |
| Open Model | 679 |
| Flanged Open Model | F679 |
| Shielded Model | 679ZZS |
| Flanged Shielded Model | F679ZZS |
| 2RS | - |
| 2RU | - |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | J |
| Ball Qty. Z | 12 |
| Ball Size Dw | 1.588 mm |
| Shielded Weight (g) | 1.98 g |
| Flanged Shielded Weight (g) | 2.2 g |
| Open Weight (g) | 1.35 g |
| Flanged Open Weight (g) | 1.57 g |
679 14 mm 9 mm 3 mm Frequently Asked Questions about 679 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To match diverse operational dynamics, CHG Bearing supplies 679 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.
Standard batches of CHG Bearing 679 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Absolutely. The CHG Bearing 679 Metric Miniature Deep Groove Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 679, FAG 679, NSK 679. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Model 679 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 9 mm) and steep thermal gradients between inner and outer rings.
