Matched set of two super-precision, high-speed B design, single row angular contact ball bearings with seals
These matched sets of two super-precision, high-speed B design, single row angular contact ball bearings with seals are available in a variety of arrangements.
Compared to the equivalent SKF E design high-speed bearings, these are suited for lighter loads.
- Very high running accuracy
- Accommodate high speeds
- Reduced stresses on rolling contact surfaces
- Non-contact seals
- Integral sealing prolongs bearing service life
Dimensions
| d |
70 mm
|
Bore diameter |
| D |
100 mm
|
Outside diameter |
| B |
32 mm
|
Width |
| d1 |
80.94 mm
|
Shoulder diameter of inner ring (large side face) |
| D4 |
93.38 mm
|
Recess diameter outer ring shoulder (small side face) |
| r1,2 |
min.1 mm
|
Chamfer dimension |
| r3,4 |
min.0.3 mm
|
Chamfer dimension |
Abutment dimensions
| da |
min.74.6 mm
|
Diameter of shaft abutment |
| da |
max.80.1 mm
|
Diameter of shaft abutment |
| Db |
max.98 mm
|
Diameter of housing abutment |
| ra |
max.1 mm
|
Radius of fillet |
| rb |
max.0.3 mm
|
Radius of fillet |
Calculation data
| Basic dynamic load rating |
C |
21.2 kN
|
| Basic static load rating |
C0 |
23.6 kN
|
| Fatigue load limit |
Pu |
0.72 kN
|
| Attainable speed for grease lubrication |
|
To be calculated: Single bearing (19000) x speed reduction factor (see table below)
|
| Attainable speed for oil-air lubrication |
|
To be calculated: Single bearing () x speed reduction factor (see table below)
|
| Contact angle |
α |
25 °
|
| Ball diameter |
Dw |
6.35 mm
|
| Number of rows |
i |
2
|
| Number of balls (per bearing) |
z |
32
|
Preload and stiffness (back-to-back, face-to-face)
| Preload class |
|
A
|
| Preload |
G |
75 N
|
| Axial stiffness |
|
125 N/µm
|
Correction factors for preload calculation
| Correction factor dependent on bearing series and size |
f |
1.1
|
| Correction factor dependent on contact angle |
f1 |
0.99
|
| Correction factor, preload class A |
f2A |
1
|
| Correction factor for hybrid bearings |
fHC |
1.01
|
Factors for equivalent bearing load calculation
| Axial load factor (back-to-back, face-to-face) |
Y1 |
0.92
|
| Axial load factor (back-to-back, face-to-face) |
Y2 |
1.41
|
| Axial load factor (back-to-back, face-to-face) |
Y0 |
0.76
|
| Radial load factor (back-to-back, face-to-face) |
X1 |
1
|
| Radial load factor (back-to-back, face-to-face) |
X2 |
0.67
|
| Radial load factor (back-to-back, face-to-face) |
X0 |
1
|
