/wp-content/uploads/2025/Tapered-Roller-Bearings.jpg
Koyo 30304AC
(BRAND)：KOYO
(Availability)：In Stock
Specifications
(Boundary dimensions ...etc)
d
20 mm
D
52 mm
T
16.25 mm
B
16 mm
C
12 mm
r(min.)
1.5 mm
r1(min.)
1.5 mm
Basic load ratings : Cr
43.3 kN
Basic load ratings : C0r
28.4 kN
Fatigue load limit : Cu
4.65 kN
Limiting speeds(Grease lub.)
8300 min-1
Limiting speeds(Oil lub.)
11000 min-1
Load center spread : a
13.5 mm
Constant e
0.55
Axial load factors : Y1
1.10
Axial load factors : Y0
0.60
Mounting dimensions
da(min.)
28.5 mm
db(max.)
28 mm
Da(max.)
43.5 mm
da(min.)
42 mm
db(min.)
49 mm
Sa(min.)
4 mm
Sb(min.)
4 mm
ra(max.)
1.5 mm
rb(max.)
1.5 mm
Refer.
(Refer.)Mass
0.170 kg
