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31307-A
Tapered roller bearing
Tapered roller bearings 313, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Replaces
31307A, 31307A.F22
Product information
主要尺寸和性能数据
| d | 35 mm | 内径 |
| D | 80 mm | 外径 |
| B | 21 mm | 内圈宽度 |
| C | 15 mm | 外圈宽度 |
| T | 22.75 mm | Width, total |
| Cr | 60,000 N | 基本额定动载荷, 径向 |
| C0r | 64,000 N | 基本额定静载荷，径向 |
| Cur | 7,600 N | 疲劳极限载荷, 径向 |
| nG | 9,100 1/min | 极限转速 |
| nϑr | 5,700 1/min | 额定热速 |
| ≈m | 0.51 kg | Weight |
安装尺寸
| da max | 44 mm | 轴挡肩最大直径 |
| db min | 44 mm | 轴挡肩最大直径 |
| Da min | 62 mm | 轴承座挡肩最小直径 |
| Da max | 71 mm | 轴承座挡肩最大直径 |
| Db min | 76 mm | 轴承座挡肩最小直径 |
| Ca min | 4 mm | 最小轴向间距 |
| Cb min | 7.5 mm | Minimum axial space |
| ra max | 2 mm | 轴最大圆角半径 |
| rb max | 1.5 mm | 轴承座最大圆角半径 |
尺寸
| r1, 2 min | 2 mm | 内圈背面倒角尺寸 |
| r3, 4 min | 1.5 mm | 外圈背面倒角尺寸 |
| a | 26 mm | 压力锥顶距 |
| d1 | 59.9 mm | 内圈引导挡边直径 |
温度范围
| Tmin | -30 °C | 最低工作温度 |
| Tmax | 120 °C | 最高工作温度 |
计算因素
| e | 0.83 | Fa/Fr 对应不同X和Y系数 |
| Y | 0.73 | Dynamic axial load factor |
| Y0 | 0.4 | 轴向静载荷系数 |
附加信息
T7FB035 | 按照ISO 10317和ISO 355的比较型号 |
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
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