KOMATSU SHOE ASS'Y 20Y-32-01244
KOMATSU SHOE ASS'Y 20Y-32-01244 Kate Komatsu part Machinery Co., Ltd Deal is your 28x15x7 source for OEM SHOE ASS'Y and accessories. We sell GenuineSHOE ASS'Y at discount prices.
| Bearing number: |
71902 ACD/HCP4A |
| Size (mm): |
28x15x7 |
| Bore Diameter (mm): |
28 |
| Outer Diameter (mm): |
15 |
| Width (mm): |
7 |
| d: |
15 mm |
| D: |
28 mm |
| B: |
7 mm |
| PDF |
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Product Details
| Bearing number |
71902 ACD/HCP4A |
| Size (mm) |
28x15x7 |
| Bore Diameter (mm) |
28 |
| Outer Diameter (mm) |
15 |
| Width (mm) |
7 |
| d |
15 mm |
| D |
28 mm |
| B |
7 mm |
| d1 |
18.9 mm |
| d2 |
18.9 mm |
| D1 |
23.7 mm |
| r1,2 - min. |
0.3 mm |
| r3,4 - min. |
0.2 mm |
| a |
8.5 mm |
| da - min. |
17 mm |
| db - min. |
17 mm |
| Da - max. |
26 mm |
| Db - max. |
26.6 mm |
| ra - max. |
0.3 mm |
| rb - max. |
0.2 mm |
| dn |
20.1 mm |
| Basic dynamic load rating - C |
3.8 kN |
| Basic static load rating - C0 |
1.8 kN |
| Fatigue load limit - Pu |
0.078 kN |
| Limiting speed for grease lubrication |
60000 r/min |
| Limiting speed for oil lubrication |
90000 mm/min |
| Ball - Dw |
3.969 mm |
| Ball - z |
13 |
| Gref |
0.21 cm3 |
| Calculation factor - e |
0.68 |
| Calculation factor - Y2 |
1.41 |
| Calculation factor - Y0 |
0.76 |
| Calculation factor - X2 |
0.67 |
| Calculation factor - Y1 |
0.92 |
| Preload class A - GA |
25 N |
| Preload class B - GB |
50 N |
| Preload class C - GC |
100 N |
| Preload class D - GD |
200 N |
| Calculation factor - f |
1.05 |
| Calculation factor - f1 |
0.98 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.07 |
| Calculation factor - f2C |
1.12 |
| Calculation factor - f2D |
1.17 |
| Calculation factor - fHC |
1.04 |
| Preload class A |
44 N/micron |
| Preload class B |
57 N/micron |
| Preload class C |
74 N/micron |
| Preload class D |
98 N/micron |
| r1,2 min. |
0.3 mm |
| r3,4 min. |
0.2 mm |
| da min. |
17 mm |
| db min. |
17 mm |
| Da max. |
26 mm |
| Db max. |
26.6 mm |
| ra max. |
0.3 mm |
| rb max. |
0.2 mm |
| Basic dynamic load rating C |
3.77 kN |
| Basic static load rating C0 |
1.8 kN |
| Fatigue load limit Pu |
0.078 kN |
| Attainable speed for grease lubrication |
60000 r/min |
| Attainable speed for oil-air lubrication |
90000 r/min |
| Ball diameter Dw |
3.969 mm |
| Number of balls z |
13 |
| Reference grease quantity Gref |
0.21 cm³ |
| Preload class A GA |
25 N |
| Static axial stiffness, preload class A |
44 N/µm |
| Preload class B GB |
50 N |
| Static axial stiffness, preload class B |
57 N/µm |
| Preload class C GC |
100 N |
| Static axial stiffness, preload class C |
74 N/µm |
| Preload class D GD |
200 N |
| Static axial stiffness, preload class D |
98 N/µm |
| Calculation factor f |
1.05 |
| Calculation factor f1 |
0.98 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.07 |
| Calculation factor f2C |
1.12 |
| Calculation factor f2D |
1.17 |
| Calculation factor fHC |
1.04 |
| Calculation factor e |
0.68 |
| Calculation factor (single, tandem) Y2 |
0.87 |
| Calculation factor (single, tandem) Y0 |
0.38 |
| Calculation factor (single, tandem) X2 |
0.41 |
| Calculation factor (back-to-back, face-to-face) Y1 |
0.92 |
| Calculation factor (back-to-back, face-to-face) Y2 |
1.41 |
| Calculation factor (back-to-back, face-to-face) Y0 |
0.76 |
| Calculation factor (back-to-back, face-to-face) X2 |
0.67 |
| Mass bearing |
0.014 kg |