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61808
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Technical Parameter
型号
两侧开式或闭式密封 61808 两侧开式或闭式密封
主要尺寸及数据
内径 40 mm d
外径 52 mm D
宽度 7 mm B
d1≈ 43.2 mm 挡肩直径
D1≈ 48.1 mm 挡肩直径
r1.2min 0.3 mm 倒角尺寸
m 0.032 kg 质量
安装尺寸
da min 42 mm 轴挡肩直径
Da min 50 mm 座挡肩直径
ra max 0.3 mm 轴或座倒角半径
其他数据
Cr 4.71 kN 基本额定动载荷
Cor 3.94 kN 基本额定静载荷
Pur 0.17 kN 疲劳载荷极限
nB 27300 r/min 参考转速
nG 16800 r/min 极限转速
Kr 0.015 计算系数
fo 15 计算系数
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