KOYO 3NC6312ZZC3 distributors Ball Bearings
| d: | 50 mm |
| D: | 72 mm |
| B: | 12 mm |
| d1: | 57.1 mm |
| d2: | 57.1 mm |
| D1: | 64.9 mm |
| r1,2 min.: | 0.6 mm |
| r3,4 min.: | 0.3 mm |
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Product Details
| d | 50 mm |
| D | 72 mm |
| B | 12 mm |
| d1 | 57.1 mm |
| d2 | 57.1 mm |
| D1 | 64.9 mm |
| r1,2 min. | 0.6 mm |
| r3,4 min. | 0.3 mm |
| a | 14.2 mm |
| da min. | 53.2 mm |
| db min. | 53.2 mm |
| Da max. | 68.8 mm |
| Db max. | 70.6 mm |
| ra max. | 0.6 mm |
| rb max. | 0.3 mm |
| Basic dynamic load rating C | 13.5 kN |
| Basic static load rating C0 | 10.4 kN |
| Fatigue load limit Pu | 0.44 kN |
| Attainable speed for grease lubrication | 22000 r/min |
| Ball diameter Dw | 6.35 mm |
| Number of balls z | 25 |
| Reference grease quantity Gref | 1.74 cm³ |
| Preload class A GA | 50 N |
| Static axial stiffness, preload class A | 47 N/µm |
| Preload class B GB | 100 N |
| Static axial stiffness, preload class B | 63 N/µm |
| Preload class C GC | 200 N |
| Static axial stiffness, preload class C | 87 N/µm |
| Preload class D GD | 400 N |
| Static axial stiffness, preload class D | 122 N/µm |
| Calculation factor f | 1.13 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.07 |
| Calculation factor f2C | 1.12 |
| Calculation factor f2D | 1.18 |
| Calculation factor fHC | 1.04 |
| Calculation factor f0 | 10.7 |
| Mass bearing | 0.12 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |
