NNU4938 KOYO Double-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | NNU4938 |
| Bearing number: | 6307N |
| Size (mm): | 35x80x21 |
| Bore Diameter (mm): | 35 |
| Outer Diameter (mm): | 80 |
| Width (mm): | 21 |
| d: | 35 mm |
| D: | 80 mm |
| B: | 21 mm |
| PDF |
NNU4938 |
Product Details
| Bearing number | 6307N |
| Size (mm) | 35x80x21 |
| Bore Diameter (mm) | 35 |
| Outer Diameter (mm) | 80 |
| Width (mm) | 21 |
| d | 35 mm |
| D | 80 mm |
| B | 21 mm |
| C | 21 mm |
| rn | 0,5 mm |
| a | 3,28 mm |
| b | 1,9 mm |
| r min. | 1,5 mm |
| r0 max. | 0,6 mm |
| D1 | 76,81 mm |
| da min. | 43 mm |
| da max | 47 mm |
| Da max. | 72 mm |
| ra max. | 1,5 mm |
| Weight | 0,464 Kg |
| Basic dynamic load rating (C) | 33,5 kN |
| Basic static load rating (C0) | 19,2 kN |
| (Grease) Lubrication Speed | 8 500 r/min |
| (Oil) Lubrication Speed | 10 000 r/min |
| Category | Single Row Ball Bearing |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.46 |
| 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 | 35MM Bore; 80MM Outside Diameter; 21MM Outer Race Width; Open; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; Yes Snap Ring; No Internal Special Features; C0-Medium Internal Clearance; Steel Cage |
| Other Features | Deep Groove | With Snap Ring Groove |
| UNSPSC | 31171504 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball |
| Weight / LBS | 1.0231 |
| Outer Race Width | 0.827 Inch | 21 Millimeter |
| Outside Diameter | 3.15 Inch | 80 Millimeter |
| Inner Race Width | 0 Inch | 0 Millimeter |
| Bore | 1.378 Inch | 35 Millimeter |
| SRI | 6.81 |
| hidYobi | 6307N |
| LangID | 1 |
| ro | 0.6 |
| D_ | 80 |
| SREX | 0.05 |
| B_ | 21 |
| da min | 43 |
| hidTable | ecat_NSRDGB |
| Oil rpm | 10000 |
| SRE | 7.15 |
| mass | 0.464 |
| GRS rpm | 8500 |
| ra | 1.5 |
| SRIX | 0.025 |
| D_a | 72 |
| C0 | 19.2 |
| fo | 13.2 |
| DE_ | 71.494 |
| Prod_Type3 | DGBB_SR_N_OT |
| DA_ | 13.494 |
| Z_ | 8 |
| yobi | 6307N |
| C_conv | 33500 |
| SDM_ | 58 |
| r | 1.5 |
| KBRG | 6101 |
| SBRG | 3 |
| DI_ | 44.506 |
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