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KHM212049
Tapered roller bearing
Tapered roller bearings without outer ring (Cone) K-Series, in inch sizes
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 66.675 mm | Bore diameter |
B | 38.354 mm | Width, inner ring |
Cr | 193,000 N | Basic dynamic load rating, radial |
C0r | 255,000 N | Basic static load rating, radial |
Cur | 32,500 N | Fatigue load limit, radial |
nG | 5,800 1/min | Limiting speed |
nϑr | 4,350 1/min | Thermal speed rating |
≈m | 1.33 kg | Weight |
Mounting dimensions
da max | 75.5 mm | Maximum diameter of shaft shoulder |
db min | 82 mm | Minimum diameter of shaft shoulder |
CRa min | 3.7 mm | Minimum axial space |
CRb max | 0.3 mm | Maximum axial space |
ra max | 3.6 mm | Maximum fillet radius of shaft |
Dimensions
r1, 2 min | 3.6 mm | Minimum chamfer dimension of inner ring back face |
a | 27 mm | Distance between the apexes of the pressure cones |
d1 | 91.7 mm | Guidance rib diameter of inner ring |
T1 | 38.1 mm | Width, total of inner subunit assembled with a master outer ring |
E | 101.086 mm | Inside diameter of outer ring back face |
α | 12.68333 ° | Contact angle |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 120 °C | Operating temperature max. |
Calculation factors
e | 0.34 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y | 1.78 | Dynamic axial load factor |
Y0 | 0.98 | Static axial load factor |
Downloads:
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Tolerance class | ABMA4 | Class 4 (ANSI/ABMA 19.2:2013) |
Heat treatment | Standard | |
Cage | Standard | Sheet steel cage, window cage, roller-guided |
Quality level | Standard | |
Number of rolling element rows | 1 | Single-row design |
Characteristics