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Tapered roller bearing
31305-A Tapered roller bearing
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Main Dimensions & Performance Data
d
25 mm
D
62 mm
B
17 mm
C
13 mm
Cr
37000 N
Cor
38500 N
Cur
4200 N
Reference speed
7100 rpm
Limiting speed
12000 rpm
Mounting dimensions
damax
34 mm
轴挡肩最大直径
r1,2min
1.5 mm
内圈背面倒角尺寸
r3,4min
1.5 mm
外圈背面倒角尺寸
dbmin
32 mm
轴挡肩最大直径
a
13 mm
压力锥顶距
Damin
54 mm
轴承座挡肩最小直径
d1
43.4 mm
内圈引导挡边直径
Damax
55 mm
轴承座挡肩最大直径
Dbmin
57 mm
轴承座挡肩最小直径
Camin
2 mm
最小轴向间距
Cbmin
3 mm
最小轴向间距
ramax
1.5 mm
轴最大圆角半径
rbmax
1.5 mm
轴承座最大圆角半径
Temperature range
Tmin
-30 °C
最低工作温度
Tmax
120 °C
最高工作温度
Calculation coefficient
e
0.3
Fa/Fr 对应不同X和Y系数
Y
2
轴向动载荷系数
Y0
1.1
轴向静载荷系数