| Bearing number | 6306 N |
| Size (mm) | 72x30x19 |
| Bore Diameter (mm) | 72 |
| Outer Diameter (mm) | 30 |
| Width (mm) | 19 |
| d | 30 mm |
| D | 72 mm |
| B | 19 mm |
| d1 | 44.6 mm |
| D2 | 61.88 mm |
| D3 | 68.81 mm |
| b | 1.9 mm |
| C | 3.28 mm |
| r0 | 0.6 mm |
| r1,2 - min. | 1.1 mm |
| da - min. | 37 mm |
| Da - max. | 65 mm |
| Db - min. | 80 mm |
| ba - min. | 2.2 mm |
| Ca - max. | 4.98 mm |
| ra - max. | 1 mm |
| Basic dynamic load rating - C | 29.6 kN |
| Basic static load rating - C0 | 16 kN |
| Fatigue load limit - Pu | 0.67 kN |
| Reference speed | 20000 r/min |
| Limiting speed | 13000 r/min |
| Calculation factor - kr | 0.03 |
| Calculation factor - f0 | 13 |
| Category | Single Row Ball Bearing |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.335 |
| 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 | 30MM Bore; 72MM Outside Diameter; 19MM 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 | 0.77 |
| Bore | 1.181 Inch | 30 Millimeter |
| Inner Race Width | 0 Inch | 0 Millimeter |
| Outside Diameter | 2.835 Inch | 72 Millimeter |
| Outer Race Width | 0.748 Inch | 19 Millimeter |
| d1 ≈ | 44.6 mm |
| D2 ≈ | 61.88 mm |
| r0 max. | 0.6 mm |
| r1,2 min. | 1.1 mm |
| da min. | 37 mm |
| Da max. | 65 mm |
| Db min. | 80 mm |
| ba min. | 2.2 mm |
| Ca max. | 4.98 mm |
| ra max. | 1 mm |
| Basic dynamic load rating C | 29.6 kN |
| Basic static load rating C0 | 16 kN |
| Fatigue load limit Pu | 0.67 kN |
| Calculation factor kr | 0.03 |
| Calculation factor f0 | 13.1 |
| Mass bearing | 0.36 kg |
