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R32915
Tapered roller bearing
Tapered roller bearings without outer ring (Cone) 329, main dimensions to DIN ISO 355 / DIN 720
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 75 mm | Bore diameter |
B | 20 mm | Width, inner ring |
Cr | 74,000 N | Basic dynamic load rating, radial |
C0r | 124,000 N | Basic static load rating, radial |
Cur | 15,400 N | Fatigue load limit, radial |
nG | 6,600 1/min | Limiting speed |
nϑr | 3,550 1/min | Thermal speed rating |
≈m | 358 g | Weight |
Mounting dimensions
da max | 81 mm | Maximum diameter of shaft shoulder |
db min | 81 mm | Minimum diameter of shaft shoulder |
CRa min | 4 mm | Minimum axial space |
ra max | 1 mm | Maximum fillet radius of shaft |
Dimensions
r1, 2 min | 1 mm | Minimum chamfer dimension of inner ring back face |
a | 19 mm | Distance between the apexes of the pressure cones |
d1 | 90.5 mm | Guidance rib diameter of inner ring |
T1 | 20 mm | Width, total of inner subunit assembled with a master outer ring |
E | 93.223 mm | Inside diameter of outer ring back face |
α | 12.51667 ° | Contact angle |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 120 °C | Operating temperature max. |
Calculation factors
e | 0.33 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y | 1.8 | Dynamic axial load factor |
Y0 | 0.99 | Static axial load factor |
Additional information
T2BC075 | Comparative designation to ISO 10317 and ISO 355 |
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Tolerance class | P6X | Class 6X (ISO 492:2014) |
Heat treatment | Standard | |
Cage | Standard | Sheet steel cage, window cage, roller-guided |
Internal design | Standard | |
Quality level | Standard | |
Number of rolling element rows | 1 | Single-row design |
Characteristics