Description
The SKF 6311-2RS1/C3 deep groove ball bearing delivers a robust, versatile, and low-maintenance solution for machinery requiring reliable sealing and high performance. Its contact seals on both sides keep grease in and contaminants out, ensuring longer service life while reducing the need for relubrication.
Optimized internal geometry minimizes friction, vibration, and noise, enabling efficient operation even at high speeds, with a limiting speed of 3,800 r/min. With a basic dynamic load rating of 74.1 kN, static load rating of 45 kN, and C3 clearance for smooth running under thermal expansion and heavy loads, this SKF Explorer bearing is engineered for durability and consistent performance across motors, gearboxes, pumps, and general machinery.
Specifications
| Attribute | Value |
|---|---|
| Part Number | 6311-2RS1/C3 |
| Bearing Type | Deep groove ball bearing |
| Number of Rows | 1 |
| Bore Diameter | 55 mm |
| Outside Diameter | 120 mm |
| Width | 29 mm |
| Basic Dynamic Load Rating | 74.1 kN |
| Basic Static Load Rating | 45 kN |
| Reference Speed | 12,000 r/min |
| Limiting Speed | 3,800 r/min |
| Radial Internal Clearance | C3 |
| Bore Type | Cylindrical |
| Cage Material | Sheet metal |
| Sealing | Seal on both sides |
| Sealing Type | Contact |
| Lubricant | Grease |
| Relubrication Feature | Without |
| Filling Slots | Without |
| Matched Arrangement | No |
| Locating Feature, Outer Ring | Without |
| Material | Bearing steel |
| Coating | Without |
| SKF Performance Class | SKF Explorer |
| Product Net Weight | 1.38 kg |
| Indicative Carbon Footprint (Manufacture) | 4.95 kg CO2e |
| eClass Code | 23-05-08-01 |
| UNSPSC Code | 31171504 |
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