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FAG
R31309-DY-XL
Tapered roller bearing R31309-DY-XL
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Main Dimensions & Performance Data
d
45 mm
Bore diameter
B
25 mm
Width, inner ring
Cr
106,000 N
Basic dynamic load rating, radial
C0r
100,000 N
Basic static load rating, radial
Cur
14,900 N
Fatigue load limit, radial
nG
8,700 1/min
Limiting speed
nϑr
4,550 1/min
Thermal speed rating
≈m
0.66 kg
Weight

Mounting dimensions
da max
56 mm
Maximum diameter of shaft shoulder
db min
54 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 mm
Maximum fillet radius of shaft

Dimensions
r1, 2 min
2 mm
Minimum chamfer dimension of inner ring back face
a
30 mm
Distance between the apexes of the pressure cones
d1
74.5 mm
Guidance rib diameter of inner ring
T1
27.25 mm
Width, total of inner subunit assembled with a master outer ring
E
75.107 mm
Inside diameter of outer ring back face
α
28.81083 °
Contact angle

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

Calculation factors
e
0.83
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y
0.73
Dynamic axial load factor
Y0
0.4
Static axial load factor

Additional information
T7FB045
Comparative designation to ISO 10317 and ISO 355

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