Manufactured by CHG Bearing, the 6702 is a precision Metric Super-Thin Deep Groove Ball Bearings. Key dimensional parameters include a 15 mm bore diameter, a 21 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.
6702 - Metric Super-Thin Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6702 |
| Dimensions | |
| Bore Diameter (d) | 15 mm |
| Width (B) | 4 mm |
| Outer Diameter (D) | 21 mm |
| Radius rs min | 0.2 mm |
| Flange Df | 22.5 mm |
| Flange Width Bf | 0.8 mm |
| Performance | |
| Dynamic Load Cr (N) | 937 N |
| Static Load C0r (N) | 582 N |
| Grease Speed (x1000 rpm) | 11 x1000 rpm |
| Oil Speed (x1000 rpm) | 13 x1000 rpm |
| Design Configurations | |
| Open Model | 6702 |
| Flanged Open Model | F6702 |
| Shielded Model | 6702ZZS |
| Flanged Shielded Model | F6702ZZS |
| 2RS | 2RS |
| 2RU | - |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 14 |
| Ball Size Dw | 1.588 mm |
| Shielded Weight (g) | 3.6 g |
| Flanged Shielded Weight (g) | 3.9 g |
6702 21 mm 15 mm 4 mm Frequently Asked Questions about 6702 Metric Super-Thin Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 6702 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 safeguard CHG Bearing 6702 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (15 mm x 21 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To extend the trouble-free lifespan of CHG Bearing 6702, 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.
When fitting 6702 over a 15 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
