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FAG
K1780
Tapered roller bearing K1780
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Main Dimensions & Performance Data
d
25.4 mm
Bore diameter
B
19.837 mm
Width, inner ring
Cr
43,000 N
Basic dynamic load rating, radial
C0r
46,500 N
Basic static load rating, radial
Cur
5,400 N
Fatigue load limit, radial
nG
14,200 1/min
Limiting speed
nϑr
9,500 1/min
Thermal speed rating
≈m
0.142 kg
Weight

Mounting dimensions
da max
30 mm
Maximum diameter of shaft shoulder
db min
30.5 mm
Minimum diameter of shaft shoulder
CRa min
1.5 mm
Minimum axial space
CRb max
0.4 mm
Maximum axial space
ra max
0.8 mm
Maximum fillet radius of shaft

Dimensions
r1, 2 min
0.8 mm
Minimum chamfer dimension of inner ring back face
a
13 mm
Distance between the apexes of the pressure cones
d1
39.9 mm
Guidance rib diameter of inner ring
T1
19.368 mm
Width, total of inner subunit assembled with a master outer ring
E
43.516 mm
Inside diameter of outer ring back face
α
11.58333 °
Contact angle

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

Calculation factors
e
0.31
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y
1.95
Dynamic axial load factor
Y0
1.07
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
Number of rolling element rows1Single-row design
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