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สหรัฐอเมริกา
06:02:13 GMT+0000 (Coordinated Universal Time)
KM348449-M348410
Tapered roller bearing
Tapered roller bearings K-Series, in inch sizes, separable, adjusted or in pairs
ข้อมูลผลิตภัณฑ์
เมตริก
อิมพีเรียล
Main Dimensions & Performance Data
d | 247.65 mm | Bore diameter |
D | 346.075 mm | Outside diameter |
B | 63.5 mm | Width, inner ring |
C | 50.8 mm | Width, outer ring |
T | 63.5 mm | Width, total |
Cr | 710,000 N | Basic dynamic load rating, radial |
C0r | 1,470,000 N | Basic static load rating, radial |
Cur | 164,000 N | Fatigue load limit, radial |
nG | 1,860 1/min | Limiting speed |
nϑr | 1,040 1/min | Thermal speed rating |
≈m | 17.8 kg | น้ำหนัก |
Mounting dimensions
da max | 263 mm | Maximum diameter of shaft shoulder |
db min | 273 mm | Minimum diameter of shaft shoulder |
Da min | 321 mm | Minimum diameter of housing shoulder |
Da max | 325 mm | Maximum diameter of housing shoulder |
Db min | 332 mm | Minimum diameter of housing shoulder |
Ca min | 8 mm | Minimum axial space |
Cb min | 12 mm | Minimum axial space |
ra max | 6.4 mm | Maximum fillet radius of shaft |
rb max | 6.4 mm | Maximum fillet radius of housing |
Dimensions
r1, 2 min | 6.4 mm | Minimum chamfer dimension of inner ring back face |
r3, 4 min | 6.4 mm | Minimum chamfer dimension of outer ring back face |
a | 61 mm | Distance between the apexes of the pressure cones |
d1 | 294 mm | Guidance rib diameter of inner ring |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 200 °C | Operating temperature max. |
Calculation factors
e | 0.34 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y | 1.77 | Dynamic axial load factor |
Y0 | 0.97 | Static axial load factor |