Manufactured by CHG Bearing, the 627 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 7 mm bore diameter, a 22 mm outer diameter, and a 7 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.
627 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 627 |
| Dimensions | |
| Bore Diameter (d) | 7 mm |
| Width (B) | 7 mm |
| Outer Diameter (D) | 22 mm |
| Open Width B | 7 mm |
| Radius rs min | 0.3 mm |
| Flange Df | 25 mm |
| Closed Width B1 | 7 mm |
| Open Flange Width Bf | 1.5 mm |
| Closed Flange Width Bf1 | 1.5 mm |
| Performance | |
| Dynamic Load Cr (N) | 3287 N |
| Static Load C0r (N) | 1379 N |
| Grease Speed (x1000 rpm) | 30 x1000 rpm |
| Oil Speed (x1000 rpm) | 36 x1000 rpm |
| Design Configurations | |
| Open Model | 627 |
| Flanged Open Model | F627 |
| Shielded Model | 627ZZ |
| Flanged Shielded Model | F627ZZ |
| 2RS | 2RS |
| 2RU | 2RU |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | J, TW |
| Ball Qty. Z | 7 |
| Ball Size Dw | 3.969 mm |
| Shielded Weight (g) | 13.1 g |
| Flanged Shielded Weight (g) | 14.4 g |
| Open Weight (g) | 12.7 g |
| Flanged Open Weight (g) | 14 g |
627 22 mm 7 mm 7 mm Frequently Asked Questions about 627 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 627 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 627 with a precision bore diameter (d) of 7 mm, an outside diameter (D) of 22 mm, and a nominal ring width (B) of 7 mm. This configuration yields an effective cross-sectional wall thickness of 7.5 mm and an envelope ratio (D/d) of 3.14, delivering compact rigidity for OEM machinery housings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 627. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 627 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.
