| Bearing number | 6311DDU |
| Size (mm) | 55x120x29 |
| Bore Diameter (mm) | 55 |
| Outer Diameter (mm) | 120 |
| Width (mm) | 29 |
| d | 55 mm |
| D | 120 mm |
| B | 29 mm |
| C | 29 mm |
| r min. | 2 mm |
| da min. | 64 mm |
| da max | 72,5 mm |
| Da max. | 111 mm |
| ra max. | 2 mm |
| Weight | 1,37 Kg |
| Basic dynamic load rating (C) | 71,5 kN |
| Basic static load rating (C0) | 44,5 kN |
| (Grease) Lubrication Speed | 4 000 r/min |
| Category | Single Row Ball Bearing |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 1.401 |
| Product Group | B00308 |
| Enclosure | 2 Seals |
| Precision Class | ABEC 1 | ISO P0 |
| Maximum Capacity / Filling Slot | No |
| Rolling Element | Ball Bearing |
| Snap Ring | No |
| Internal Special Features | No |
| Cage Material | Steel |
| Enclosure Type | Contact Seal |
| Internal Clearance | C0-Medium |
| Inch - Metric | Metric |
| Long Description | 55MM Bore; 120MM Outside Diameter; 29MM Outer Race Width; 2 Seals; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; No Internal Special Features; C0-Medium Internal Clearance; Steel Cage; |
| Other Features | Deep Groove | Rubber Seal |
| UNSPSC | 31171504 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball |
| Manufacturer Item Number | 6311DDU |
| Weight / LBS | 3.0209 |
| Bore | 2.165 Inch | 55 Millimeter |
| Inner Race Width | 0 Inch | 0 Millimeter |
| Outer Race Width | 1.142 Inch | 29 Millimeter |
| Outside Diameter | 4.724 Inch | 120 Millimeter |
| SRI | 10.68 |
| hidYobi | 6311DDU |
| LangID | 1 |
| D_ | 120 |
| SREX | 0.04 |
| B_ | 29 |
| da min | 64 |
| hidTable | ecat_NSRDGB |
| SRE | 10.68 |
| mass | 1.37 |
| GRS rpm | 4000 |
| ra | 2 |
| SRIX | 0.04 |
| D_a | 111 |
| SRIN | -0.04 |
| C0 | 44.5 |
| fo | 13.1 |
| SREN | -0.04 |
| DE_ | 108.138 |
| Prod_Type3 | DGBB_SR_DD |
| DA_ | 20.638 |
| Z_ | 8 |
| yobi | 6311DDU |
| C_conv | 71500 |
| SDM_ | 87.5 |
| r | 2 |
| KBRG | 6161 |
| SBRG | 3 |
| DI_ | 66.862 |
