Select a different country or region to see content for your location.
United States
07:14:57 GMT+0000 (Coordinated Universal Time)
30307-A-R
Tapered roller bearing
Tapered roller bearings with flange 303, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 35 mm | Bore diameter |
D | 80 mm | Outside diameter |
B | 21 mm | Width, inner ring |
C | 18 mm | Width, outer ring |
TF | 9,25 mm | Width assembled flange bearing |
Cr | 73.000 N | Basic dynamic load rating, radial |
C0r | 75.000 N | Basic static load rating, radial |
Cur | 8.800 N | Fatigue load limit, radial |
nG | 9.700 1/min | Limiting speed |
nϑr | 6.500 1/min | Thermal speed rating |
≈m | 0,563 kg | Weight |
Mounting dimensions
da max | 45 mm | Maximum diameter of shaft shoulder |
db min | 44 mm | Minimum diameter of shaft shoulder |
Da min | 70 mm | Minimum diameter of housing shoulder |
Da max | 71 mm | Maximum diameter of housing shoulder |
Db min | 74 mm | Minimum diameter of housing shoulder |
Ca min | 3 mm | Minimum axial space |
Cb min | 4,5 mm | Minimum axial space |
ra max | 2 mm | Maximum fillet radius of shaft |
rb max | 1,5 mm | Maximum fillet radius of housing |
Dimensions
r1, 2 min | 2 mm | Minimum chamfer dimension of inner ring back face |
r3, 4 min | 1,5 mm | Minimum chamfer dimension of outer ring back face |
a | 16 mm | Distance between the apexes of the pressure cones |
d1 | 56 mm | Guidance rib diameter of inner ring |
D1 | 85 mm | Outside diameter flange |
C1 | 4,5 mm | Width flange |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 120 °C | Operating temperature max. |
Calculation factors
e | 0,32 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y | 1,9 | Dynamic axial load factor |
Y0 | 1,05 | Static axial load factor |
Additional information
T2FB035 | Comparative designation to ISO 10317 and ISO 355 |
Downloads:
Your current product variant
Tolerance class | PN | Normal (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