品牌:SKF轴承
更新时间:2026.03.15
销售电话:15335271700
7204 BECBY轴承尺寸参数 尺寸
d 20 mm 孔径
tΔdmp max.0,min.-0.008 mm Deviation limits of mid-range bore diameter
D 47 mm 外径
tΔDmp max.0,min.-0.009 mm Deviation limits of mid-range outside diameter
B 14 mm 宽度
tΔBs max.0,min.-0.12 mm Deviation limits of ring width
d1 ≈30.85 mm 内圈挡边直径(大端面)
d2 ≈25.87 mm 内圈挡边直径(小端面)
D1 ≈36.5 mm 外圈挡边直径(大端面)
a 21 mm 侧面到压力点的距离
r1,2 min.1 mm 倒角尺寸
r3,4 min.0.6 mm 倒角尺寸
- P6 - ISO tolerance class for dimensions
挡肩尺寸
da min.25.6 mm 轴挡肩直径
Da max.41.4 mm 轴承座挡肩尺寸
Db max.42.8 mm 轴承座挡肩直径
ra max.1 mm 圆角半径
rb max.0.6 mm 圆角半径
数据计算
- SKF Explorer - SKF 性能等级
C 14.3 kN 基本额定动荷
C0 8.15 kN 基本额定静负荷
Pu 0.345 kN 疲劳载荷限值
- 19000 r/min 参考转速
- 19000 r/min 极限转速
A 0.001 - 最小轴向负荷系数
kr 0.1 - 最小径向载荷系数
e 1.1 - 极限值
Tolerances of run-out
tKia 4 µm Range of section height at inner ring of assembled bearing
tSd 8 µm Maximum run-out of inner ring side face to the bore
tKea 7 µm Range of section height at outer ring of assembled bearing
tSD 4 µm Perpendicularity of outer ring outside surface
- P5 - ISO tolerance class for geometrical tolerances
