Manufactured by CHG Bearing, the 6705 is a precision Metric Super-Thin Deep Groove Ball Bearings. Key dimensional parameters include a 25 mm bore diameter, a 32 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.

6705 - Metric Super-Thin Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6705 |
| Dimensions | |
| Bore Diameter (d) | 25 mm |
| Width (B) | 4 mm |
| Outer Diameter (D) | 32 mm |
| Radius rs min | 0.2 mm |
| Flange Df | 34 mm |
| Flange Width Bf | 1 mm |
| Performance | |
| Dynamic Load Cr (N) | 1091 N |
| Static Load C0r (N) | 838 N |
| Grease Speed (x1000 rpm) | 7 x1000 rpm |
| Oil Speed (x1000 rpm) | 8 x1000 rpm |
| Design Configurations | |
| Open Model | 6705 |
| Flanged Open Model | F6705 |
| Shielded Model | - |
| Flanged Shielded Model | - |
| 2RS | 2RS |
| 2RU | - |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 21 |
| Ball Size Dw | 1.588 mm |
| Shielded Weight (g) | 7.1 g |
| Flanged Shielded Weight (g) | 7.9 g |
6705 32 mm 25 mm 4 mm Frequently Asked Questions about 6705 Metric Super-Thin Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model 6705 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 25 mm) and steep thermal gradients between inner and outer rings.
In its sealed configuration (Open Type), CHG Bearing pre-charges 6705 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
As standard production, CHG Bearing subjects 6705 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Absolutely. The CHG Bearing 6705 Metric Super-Thin Deep Groove Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 6705, FAG 6705, NSK 6705. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
