| Bearing number | 6904DDU |
| Size (mm) | 20x37x9 |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 37 |
| Width (mm) | 9 |
| d | 20 mm |
| D | 37 mm |
| B | 9 mm |
| C | 9 mm |
| r min. | 0,3 mm |
| da min. | 22 mm |
| da max | 24 mm |
| Da max. | 35 mm |
| ra max. | 0,3 mm |
| Weight | 0,037 Kg |
| Basic dynamic load rating (C) | 6,4 kN |
| Basic static load rating (C0) | 3,7 kN |
| (Grease) Lubrication Speed | 12 000 r/min |
| Category | Single Row Ball Bearing |
| Inventory | 2.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.036 |
| 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 | 20MM Bore; 37MM Outside Diameter; 9MM Outer Race Diameter; 2 Seals; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; No Internal Special Features |
| UNSPSC | 31171504 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball |
| Weight / LBS | 0.787 |
| Outside Diameter | 1.457 Inch | 37 Millimeter |
| Bore | 0.787 Inch | 20 Millimeter |
| Outer Race Width | 0.354 Inch | 9 Millimeter |
| bore diameter: | 20 mm |
| closure type: | Double Sealed |
| outside diameter: | 37 mm |
| internal clearance: | Normal Clearance |
| overall width: | 8 mm |
| manufacturer upc number: | 029176080890 |
| bore type: | Round |
| SRI | 2.46 |
| hidYobi | 6904DDU |
| LangID | 1 |
| D_ | 37 |
| SREX | 0.015 |
| B_ | 9 |
| da min | 22 |
| hidTable | ecat_NSRDGB |
| SRE | 2.46 |
| mass | 0.037 |
| GRS rpm | 12000 |
| ra | 0.3 |
| SRIX | 0.015 |
| D_a | 35 |
| SRIN | -0.015 |
| C0 | 3.7 |
| fo | 14.7 |
| SREN | -0.015 |
| DE_ | 33.262 |
| Prod_Type3 | DGBB_SR_DD |
| DA_ | 4.762 |
| Z_ | 11 |
| yobi | 6904DDU |
| C_conv | 6400 |
| SDM_ | 28.5 |
| r | 0.3 |
| KBRG | 6161 |
| SBRG | 19 |
| DI_ | 23.738 |
