Manufactured by CHG Bearing, the 6703 is a precision Metric Super-Thin Deep Groove Ball Bearings. Key dimensional parameters include a 17 mm bore diameter, a 23 mm outer diameter, and a 4 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.

6703 - Metric Super-Thin Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6703 |
| Dimensions | |
| Bore Diameter (d) | 17 mm |
| Width (B) | 4 mm |
| Outer Diameter (D) | 23 mm |
| Radius rs min | 0.2 mm |
| Flange Df | 24.5 mm |
| Flange Width Bf | 0.8 mm |
| Performance | |
| Dynamic Load Cr (N) | 1000 N |
| Static Load C0r (N) | 658 N |
| Grease Speed (x1000 rpm) | 9.5 x1000 rpm |
| Oil Speed (x1000 rpm) | 11 x1000 rpm |
| Design Configurations | |
| Open Model | 6703 |
| Flanged Open Model | F6703 |
| Shielded Model | 6703ZZS |
| Flanged Shielded Model | F6703ZZS |
| 2RS | 2RS |
| 2RU | - |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 16 |
| Ball Size Dw | 1.588 mm |
| Shielded Weight (g) | 4 g |
| Flanged Shielded Weight (g) | 4.4 g |
6703 23 mm 17 mm 4 mm Frequently Asked Questions about 6703 Metric Super-Thin Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 6703 with a precision bore diameter (d) of 17 mm, an outside diameter (D) of 23 mm, and a nominal ring width (B) of 4 mm. This configuration yields an effective cross-sectional wall thickness of 3.0 mm and an envelope ratio (D/d) of 1.35, delivering compact rigidity for OEM machinery housings.
The CHG Bearing 6703 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
To extend the trouble-free lifespan of CHG Bearing 6703, 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.
Quality starts with raw material selection: CHG Bearing crafts 6703 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
