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 |
| PDF |
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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 |