- Tapered roller bearings
- Single-row
- Metric series
>
Bearing No. 30312JR
Specifications
(Boundary dimensions ...etc)
d(mm) | 60 |
---|
D(mm) | 130 |
---|
T(mm) | 33.5 |
---|
B(mm) | 31 |
---|
C(mm) | 26 |
---|
r(min.)(mm) | 3 |
---|
r1(min.)(mm) | 2.5 |
---|
Basic load ratings : Cr(kN) | 217 |
---|
Basic load ratings : C0r(kN) | 201 |
---|
Fatigue load limit : Cu(kN) | 31.9 |
---|
Limiting speeds(Grease lub.)(min-1) | 3100 |
---|
Limiting speeds(Oil lub.)(min-1) | 4100 |
---|
Load center spread : a(mm) | 26.9 |
---|
Constant e() | 0.35 |
---|
Axial load factors : Y1() | 1.74 |
---|
Axial load factors : Y0() | 0.96 |
Mounting dimensions
da(min.)(mm) | 74 |
---|
db(max.)(mm) | 77 |
---|
Da(max.)(mm) | 118 |
---|
da(min.)(mm) | 112 |
---|
db(min.)(mm) | 120 |
---|
Sa(min.)(mm) | 4 |
---|
Sb(min.)(mm) | 7.5 |
---|
ra(max.)(mm) | 2.5 |
---|
rb(max.)(mm) | 2 |
Refer.