- Tapered roller bearings
- Single-row
- Metric series
>
Bearing No. 303/28R
Specifications
(Boundary dimensions ...etc)
d(mm) | 28 |
---|
D(mm) | 68 |
---|
T(mm) | 19.75 |
---|
B(mm) | 18 |
---|
C(mm) | 16 |
---|
r(min.)(mm) | 1.5 |
---|
r1(min.)(mm) | 1.5 |
---|
Basic load ratings : Cr(kN) | 66.9 |
---|
Basic load ratings : C0r(kN) | 54.0 |
---|
Fatigue load limit : Cu(kN) | 8.00 |
---|
Limiting speeds(Grease lub.)(min-1) | 6100 |
---|
Limiting speeds(Oil lub.)(min-1) | 8200 |
---|
Load center spread : a(mm) | 14.9 |
---|
Constant e() | 0.32 |
---|
Axial load factors : Y1() | 1.88 |
---|
Axial load factors : Y0() | 1.04 |
Mounting dimensions
da(min.)(mm) | 36.5 |
---|
db(max.)(mm) | 38 |
---|
Da(max.)(mm) | 59.5 |
---|
da(min.)(mm) | 58 |
---|
db(min.)(mm) | 63 |
---|
Sa(min.)(mm) | 2 |
---|
Sb(min.)(mm) | 3.5 |
---|
ra(max.)(mm) | 1.5 |
---|
rb(max.)(mm) | 1.5 |
Refer.