SKF-71809-ACD-P4-Angular-contact-ball-bearings-super-precision
Brand:SKF
Original:ITALY
Type:Angular contact ball bearings, super-precision
Item: SKF-71809-ACD-P4
Inner:45MM
Outner:58MM
Thickness:7MM
Weight:0.039KG
Description
SKF-71809-ACD-P4 specification parameter：
| d |
45 mm
|
|
|---|---|---|
| D |
58 mm
|
|
| B |
7 mm
|
|
| d1 |
49.6 mm
|
|
| d2 |
49.6 mm
|
|
| D1 |
53.6 mm
|
|
| r1,2 |
min. 0.3 mm
|
|
| r3,4 |
min. 0.15 mm
|
|
| a |
15.5 mm
|
ABUTMENT DIMENSIONS
| da |
min. 47 mm
|
|
|---|---|---|
| db |
min. 47 mm
|
|
| Da |
max. 56 mm
|
|
| Db |
max. 57.2 mm
|
|
| ra |
max. 0.3 mm
|
|
| rb |
max. 0.15 mm
|
|
| dn |
50 mm
|
CALCULATION DATA
| Basic dynamic load rating | C |
4.62 kN
|
|---|---|---|
| Basic static load rating | C0 |
5 kN
|
| Fatigue load limit | Pu |
0.212 kN
|
| Attainable speed for grease lubrication |
20000 r/min
|
|
| Attainable speed for oil-air lubrication |
30000 r/min
|
|
| Contact angle | α |
25 °
|
| Ball diameter | Dw |
3.175 mm
|
| Number of balls | z |
31
|
| Reference grease quantity | Gref |
0.36 cm³
|
| Preload class A | GA |
41 N
|
|---|---|---|
| Static axial stiffness, preload class A |
87 N/µm
|
|
| Preload class B | GB |
125 N
|
| Static axial stiffness, preload class B |
139 N/µm
|
|
| Preload class C | GC |
250 N
|
| Static axial stiffness, preload class C |
189 N/µm
|
| Calculation factor | f |
1.24
|
|---|---|---|
| Calculation factor | f1 |
0.97
|
| Calculation factor | f2A |
1
|
| Calculation factor | f2B |
1.08
|
| Calculation factor | f2C |
1.15
|
| Calculation factor | fHC |
1
|
| 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
| Mass bearing |
0.039 kg
|
|---|
As a professional bearing exporter and SKF distributor, WS Bearing stocks thousands kindsof Angular contact ball bearings, super-precision for sale，We can export to Singapore–Viet Nam–Malaysia–Indonesia etc. If you have problems about selecting proper bearings for your special applications, please contact us right now
