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FAG
K680235-680270-B
Tapered roller bearing K680235-680270-B
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Main Dimensions & Performance Data
d
596.9 mm
Bore diameter
D
685.8 mm
Outside diameter
B
31.75 mm
Width, inner ring
C
25.4 mm
Width, outer ring
TF
13.492 mm
Width assembled flange bearing
Cr
410,000 N
Basic dynamic load rating, radial
C0r
1,120,000 N
Basic static load rating, radial
Cur
95,000 N
Fatigue load limit, radial
nG
1,010 1/min
Limiting speed
nϑr
390 1/min
Thermal speed rating
≈m
18.736 kg
Weight

Mounting dimensions
da max
615 mm
Maximum diameter of shaft shoulder
db min
621 mm
Minimum diameter of shaft shoulder
Da min
659 mm
Minimum diameter of housing shoulder
Db min
667 mm
Minimum diameter of housing shoulder
Ca min
8 mm
Minimum axial space
Cb min
6 mm
Minimum axial space
ra max
3.6 mm
Maximum fillet radius of shaft
rb max
3.3 mm
Maximum fillet radius of housing

Dimensions
r1, 2 min
3.6 mm
Minimum chamfer dimension of inner ring back face
r3, 4 min
3.3 mm
Minimum chamfer dimension of outer ring back face
a
126 mm
Distance between the apexes of the pressure cones
d1
637 mm
Guidance rib diameter of inner ring
D1
692.84 mm
Outside diameter flange
C1
7.142 mm
Width flange

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
200 °C
Operating temperature max.

Calculation factors
e
0.53
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y
1.14
Dynamic axial load factor
Y0
0.63
Static axial load factor

Your current product variant
Tolerance classABMA4Class 4 (ANSI/ABMA 19.2:2013)
Heat treatmentStandard
CageStandardSheet steel cage, roller-guided
Internal designStandard
Quality levelStandard
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