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United States
21:50:37 GMT+0000 (Coordinated Universal Time)
K72187-72487
Tapered roller bearing
Tapered roller bearings K-Series, in inch sizes, separable, adjusted or in pairs
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 47,625 mm | Bore diameter |
D | 123,825 mm | Outside diameter |
B | 32,791 mm | Width, inner ring |
C | 25,4 mm | Width, outer ring |
T | 36,512 mm | Width, total |
Cr | 135.000 N | Basic dynamic load rating, radial |
C0r | 150.000 N | Basic static load rating, radial |
Cur | 18.300 N | Fatigue load limit, radial |
nG | 6.000 1/min | Limiting speed |
nϑr | 5.500 1/min | Thermal speed rating |
≈m | 2,11 kg | Weight |
Mounting dimensions
da max | 67 mm | Maximum diameter of shaft shoulder |
db min | 79 mm | Minimum diameter of shaft shoulder |
Da min | 102 mm | Minimum diameter of housing shoulder |
Da max | 112 mm | Maximum diameter of housing shoulder |
Db min | 116 mm | Minimum diameter of housing shoulder |
Ca min | 3,5 mm | Minimum axial space |
Cb min | 8,5 mm | Minimum axial space |
ra max | 3,6 mm | Maximum fillet radius of shaft |
rb max | 3,2 mm | Maximum fillet radius of housing |
Dimensions
r1, 2 min | 3,6 mm | Minimum chamfer dimension of inner ring back face |
r3, 4 min | 3,2 mm | Minimum chamfer dimension of outer ring back face |
a | 38 mm | Distance between the apexes of the pressure cones |
d1 | 86,75 mm | Guidance rib diameter of inner ring |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 120 °C | Operating temperature max. |
Calculation factors
e | 0,74 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y | 0,81 | Dynamic axial load factor |
Y0 | 0,45 | Static axial load factor |