| Bearing number |
709 CD/HCP4AH |
| Size (mm) |
24x9x7 |
| Bore Diameter (mm) |
24 |
| Outer Diameter (mm) |
9 |
| Width (mm) |
7 |
| d |
9 mm |
| D |
24 mm |
| B |
7 mm |
| d1 |
14.1 mm |
| d2 |
14.1 mm |
| D1 |
18.9 mm |
| K |
0.5 mm |
| C1 |
4.25 mm |
| r1,2 - min. |
0.3 mm |
| r3,4 - min. |
0.2 mm |
| a |
5.7 mm |
| da - min. |
11 mm |
| db - min. |
11 mm |
| Da - max. |
22 mm |
| Db - max. |
22.6 mm |
| ra - max. |
0.3 mm |
| rb - max. |
0.2 mm |
| dn |
15.1 mm |
| Basic dynamic load rating - C |
3.6 kN |
| Basic static load rating - C0 |
1.6 kN |
| Fatigue load limit - Pu |
0.068 kN |
| Limiting speed for grease lubrication |
95000 r/min |
| Limiting speed for oil lubrication |
150000 mm/min |
| Ball - Dw |
3.969 mm |
| Ball - z |
10 |
| Gref |
0.18 cm3 |
| Calculation factor - f0 |
8.8 |
| Preload class A - GA |
10 N |
| Preload class B - GB |
20 N |
| Preload class C - GC |
40 N |
| Preload class D - GD |
80 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.02 |
| Calculation factor - f2C |
1.05 |
| Calculation factor - f2D |
1.09 |
| Calculation factor - fHC |
1.02 |
| Preload class A |
13 N/micron |
| Preload class B |
17 N/micron |
| Preload class C |
23 N/micron |
| Preload class D |
32 N/micron |
| r1,2 min. |
0.3 mm |
| r3,4 min. |
0.2 mm |
| da min. |
11 mm |
| db min. |
11 mm |
| Da max. |
22 mm |
| Db max. |
22.6 mm |
| ra max. |
0.3 mm |
| rb max. |
0.2 mm |
| Basic dynamic load rating C |
3.58 kN |
| Basic static load rating C0 |
1.6 kN |
| Fatigue load limit Pu |
0.068 kN |
| Attainable speed for grease lubrication |
95000 r/min |
| Attainable speed for oil-air lubrication |
150000 r/min |
| Ball diameter Dw |
3.969 mm |
| Number of balls z |
10 |
| Reference grease quantity Gref |
0.18 cm³ |
| Preload class A GA |
10 N |
| Static axial stiffness, preload class A |
13 N/µm |
| Preload class B GB |
20 N |
| Static axial stiffness, preload class B |
17 N/µm |
| Preload class C GC |
40 N |
| Static axial stiffness, preload class C |
23 N/µm |
| Preload class D GD |
80 N |
| Static axial stiffness, preload class D |
32 N/µm |
| Calculation factor f |
1.02 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.02 |
| Calculation factor f2C |
1.05 |
| Calculation factor f2D |
1.09 |
| Calculation factor fHC |
1.02 |
| Calculation factor f0 |
8.8 |
| Mass bearing |
0.013 kg |