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08:39:36 GMT+0000 (Coordinated Universal Time)
K680235-680270
Tapered roller bearing
Tapered roller bearings K-Series, in inch sizes, separable, adjusted or in pairs
Replaces
K680235.680270
Product information
Metric
Imperial
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 |
T | 31,75 mm | Width, total |
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 | 17,5 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 |
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 |