Select a different country or region to see content for your location.
United States
19:43:14 GMT+0000 (Coordinated Universal Time)
30309-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
Main Dimensions & Performance Data
| d | 45 mm | Bore diameter |
| D | 100 mm | Outside diameter |
| B | 25 mm | Width, inner ring |
| C | 22 mm | Width, outer ring |
| TF | 10.25 mm | Width assembled flange bearing |
| Cr | 111,000 N | Basic dynamic load rating, radial |
| C0r | 125,000 N | Basic static load rating, radial |
| Cur | 15,100 N | Fatigue load limit, radial |
| nG | 7,600 1/min | Limiting speed |
| nϑr | 5,100 1/min | Thermal speed rating |
| ≈m | 1.02 kg | Weight |
Mounting dimensions
| da max | 59 mm | Maximum diameter of shaft shoulder |
| db min | 54 mm | Minimum diameter of shaft shoulder |
| Da min | 86 mm | Minimum diameter of housing shoulder |
| Da max | 91 mm | Maximum diameter of housing shoulder |
| Db min | 92 mm | Minimum diameter of housing shoulder |
| Ca min | 3 mm | Minimum axial space |
| Cb min | 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 | 21 mm | Distance between the apexes of the pressure cones |
| d1 | 70.65 mm | Guidance rib diameter of inner ring |
| D1 | 106 mm | Outside diameter flange |
| C1 | 5 mm | Width flange |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Calculation factors
| e | 0.35 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1.74 | Dynamic axial load factor |
| Y0 | 0.96 | Static axial load factor |
Additional information
T2FB045 | 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
