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Schaeffler
R30310-A
Tapered roller bearing R30310-A
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Main Dimensions & Performance Data
d
50 mm
Bore diameter
B
27 mm
Width, inner ring
Cr
130,000 N
Basic dynamic load rating, radial
C0r
148,000 N
Basic static load rating, radial
Cur
18,100 N
Fatigue load limit, radial
nG
6,800 1/min
Limiting speed
nϑr
4,450 1/min
Thermal speed rating
≈m
0.965 kg
Weight

Mounting dimensions
da max
65 mm
Maximum diameter of shaft shoulder
db min
60 mm
Minimum diameter of shaft shoulder
CRa min
6.3 mm
Minimum axial space
CRb max
0.2 mm
Maximum axial space
ra max
2.5 mm
Maximum fillet radius of shaft

Dimensions
r1, 2 min
2.5 mm
Minimum chamfer dimension of inner ring back face
a
21 mm
Distance between the apexes of the pressure cones
d1
77.6 mm
Guidance rib diameter of inner ring
T1
29.25 mm
Width, total of inner subunit assembled with a master outer ring
E
90.633 mm
Inside diameter of outer ring back face
α
12.95278 °
Contact angle

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
120 °C
Operating temperature max.

Calculation factors
e
0.35
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y
1.74
Dynamic axial load factor
Y0
0.96
Static axial load factor

Additional information
T2FB050
Comparative designation to ISO 10317 and ISO 355

Your current product variant
Tolerance classPNNormal (ISO 492:2014)
Heat treatmentStandard
CageStandardSheet steel cage, roller-guided
Internal designStandard
Quality levelStandard
Number of rolling element rows1Single-row design
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