Tapered roller bearings 303, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
d |
20 mm
|
Bore diameter |
D |
52 mm
|
Outside diameter |
B |
15 mm
|
Width, inner ring |
C |
13 mm
|
Width, outer ring |
T |
16,25 mm
|
Width, total |
Cr |
34.000 N
|
Basic dynamic load rating, radial |
C0r |
32.500 N
|
Basic static load rating, radial |
Cur |
3.700 N
|
Fatigue load limit, radial |
nG |
15.600 1/min
|
Limiting speed |
nϑr |
9.700 1/min
|
Thermal speed rating |
≈m |
0,168 kg
|
Weight |
da max |
28 mm
|
Maximum diameter of shaft shoulder |
db min |
27 mm
|
Minimum diameter of shaft shoulder |
Da min |
44 mm
|
Minimum diameter of housing shoulder |
Da max |
45 mm
|
Maximum diameter of housing shoulder |
Db min |
47 mm
|
Minimum diameter of housing shoulder |
Ca min |
2 mm
|
Minimum axial space |
Cb min |
3 mm
|
Minimum axial space |
ra max |
1,5 mm
|
Maximum fillet radius of shaft |
rb max |
1,5 mm
|
Maximum fillet radius of housing |
r1, 2 min |
1,5 mm
|
Minimum chamfer dimension of inner ring back face |
r3, 4 min |
1,5 mm
|
Minimum chamfer dimension of outer ring back face |
a |
12 mm
|
Distance between the apexes of the pressure cones |
d1 |
36,1 mm
|
Guidance rib diameter of inner ring |
Tmin |
-30 °C
|
Operating temperature min. |
Tmax |
120 °C
|
Operating temperature max. |
e |
0,3
|
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y |
2
|
Dynamic axial load factor |
Y0 |
1,1
|
Static axial load factor |
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