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Tapered roller bearing
31304 Tapered roller bearing
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Domax
®
Precision rolling bearings
Main Dimensions & Performance Data
d
20 mm
D
52 mm
B
15 mm
C
11 mm
Cr
28500 N
Cor
27500 N
Cur
3150 N
Reference speed
8500 rpm
Limiting speed
14900 rpm
Mounting dimensions
damax
27 mm
轴挡肩最大直径
r1,2min
1 mm
内圈背面倒角尺寸
r3,4min
1 mm
外圈背面倒角尺寸
dbmin
26 mm
轴挡肩最大直径
a
12 mm
压力锥顶距
Damin
40 mm
轴承座挡肩最小直径
d1
34.7 mm
内圈引导挡边直径
Damax
41 mm
轴承座挡肩最大直径
Dbmin
43 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 mm
轴最大圆角半径
rbmax
1 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
0.35
Fa/Fr 对应不同X和Y系数
Y
1.74
轴向动载荷系数
Y0
0.96
轴向静载荷系数