KOYO NA2120 needle roller bearings
100% 20x52x15 Size (mm) 20 Bore Diameter (mm) Authentic. 52 Outer Diameter (mm) KOYO NA2120 needle roller bearings Highest Quality. Certified Supplier.
| Size (mm) | 20x52x15 |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 15 |
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| C | 15 mm |
| rn | 0,5 mm |
| a | 2,46 mm |
| b | 1,35 mm |
| f | 1,12 mm |
| r min. | 1,1 mm |
| r0 max. | 0,4 mm |
| D1 | 49,73 mm |
| D2 | 57,9 mm |
| da min. | 26,5 mm |
| da max | 28 mm |
| Da max. | 45,5 mm |
| ra max. | 1 mm |
| Weight | 0,145 Kg |
| Basic dynamic load rating (C) | 15,9 kN |
| Basic static load rating (C0) | 7,9 kN |
| (Grease) Lubrication Speed | 14 000 r/min |
| (Oil) Lubrication Speed | 17 000 r/min |
| Inventory | 0.0 |
| Manufacturer Name | NSK |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.07 |
| EAN | 0029176034978 |
| Product Group | B00308 |
| Enclosure | Open |
| Precision Class | ABEC 1 | ISO P0 |
| Maximum Capacity / Filling Slot | No |
| Rolling Element | Ball Bearing |
| Snap Ring | Yes |
| Internal Special Features | No |
| Cage Material | Steel |
| Internal Clearance | C0-Medium |
| Inch – Metric | Metric |
| Long Description | 20MM Bore; 52MM Outside Diameter; 15MM Outer Race Diameter; Open; Ball Bearing; ABEC 1 | ISO P0; No |
| UNSPSC | 31171504 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball |
| Manufacturer Item Number | 6304NR |
| Weight / LBS | 0.147 |
| Outer Race Width | 0.591 Inch | 15 Millimeter |
| Outside Diameter | 2.047 Inch | 52 Millimeter |
| Bore | 0.787 Inch | 20 Millimeter |
| SRI | 4.81 |
| hidYobi | 6304NR |
| LangID | 1 |
| ro | 0.4 |
| D_ | 52 |
| SREX | 0.04 |
| B_ | 15 |
| da min | 26.5 |
| hidTable | ecat_NSRDGB |
| Oil rpm | 17000 |
| SRE | 5 |
| Cy | 3.3 |
| mass | 0.145 |
| GRS rpm | 14000 |
| ra | 1 |
| SRIX | 0.02 |
| D_a | 45.5 |
| SRIN | 0 |
| C0 | 7.9 |
| fo | 12.4 |
| SREN | 0 |
| DE_ | 45.525 |
| Prod_Type3 | DGBB_SR_NR_OT |
| DA_ | 9.525 |
| bomp | 0 |
| Z_ | 7 |
| yobi | 6304NR |
| Dx | 58.5 |
| C_conv | 15900 |
| ALPHA_ | 0 |
| SDM_ | 36 |
| r | 1.1 |
| KBRG | 6101 |
| SBRG | 3 |
| DI_ | 26.475 |
Detailed Parameters
parameter：
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