SKF 71901 CD/P4A Angular contact ball bearings, super-precision
- P4A: Dimensional tolerances to ISO class 4, geometrical tolerances tighter than class 4
Description
SKF 71901 CD/P4A specification parameter：
| d |
12 mm
|
Bore diameter |
|---|---|---|
| D |
24 mm
|
Outside diameter |
| B |
6 mm
|
Width |
| d1 |
16 mm
|
Shoulder diameter of inner ring (large side face) |
| d2 |
16 mm
|
Shoulder diameter of inner ring (small side face) |
| D1 |
20 mm
|
Shoulder diameter of outer ring (large side face) |
| r1,2 |
min.0.3 mm
|
Chamfer dimension (large side face) |
| r3,4 |
min.0.2 mm
|
Chamfer dimension (small side face) |
| a |
5.4 mm
|
Distance from side face to pressure point |
ABUTMENT DIMENSIONS
| da |
min.14 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min.14 mm
|
Diameter of shaft abutment |
| Da |
max.22 mm
|
Diameter of housing abutment |
| Db |
max.22.6 mm
|
Diameter of housing abutment |
| ra |
max.0.3 mm
|
Radius of fillet |
| rb |
max.0.2 mm
|
Radius of fillet |
| dn |
16.8 mm
|
Psition of oil nozzle |
CALCULATION DATA
| Basic dynamic load rating | C |
2.65 kN
|
|---|---|---|
| Basic static load rating | C0 |
1.25 kN
|
| Fatigue load limit | Pu |
0.053 kN
|
| Attainable speed for grease lubrication |
70 000 r/min
|
|
| Attainable speed for oil-air lubrication |
110 000 r/min
|
|
| Contact angle | α |
15 °
|
| Ball diameter | Dw |
3.175 mm
|
| Number of balls | z |
13
|
| Reference grease quantity | Gref |
0.12 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 |
33 N/µm
|
| Correction factor dependent on bearing series and size | f |
1.04
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
1
|
| Correction factor, preload class A | f2A |
1
|
| Correction factor, preload class B | f2B |
1.04
|
| Correction factor, preload class C | f2C |
1.09
|
| Correction factor, preload class D | f2D |
1.15
|
| Correction factor for hybrid bearings | fHC |
1
|
| Calculation factor | f0 |
9.8
|
MASS
| Mass |
0.01 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-Germany-USA etc. If you have problems about selecting proper bearings for your special applications, please contact us right now
