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BCE78 Needle Roller Water Pump image

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WATER PUMP BEARING Specification details

Bearing number:729 CD/HCP4A
Size (mm):26x9x8
Bore Diameter (mm):26
Outer Diameter (mm):9
Width (mm):8
d:9 mm
D:26 mm
B:8 mm
d1:15.1 mm
d2:15.1 mm
D1:20.9 mm
r1,2 - min.:0.3 mm
r3,4 - min.:0.2 mm
a:6.5 mm
da - min.:11.4 mm
db - min.:11.4 mm
Da - max.:23.6 mm
Db - max.:24.2 mm
ra - max.:0.3 mm
rb - max.:0.2 mm
dn:16.3 mm
Basic dynamic load rating - C:4.1 kN
Basic static load rating - C0:1.7 kN
Fatigue load limit - Pu:0.071 kN
Limiting speed for grease lubrication:80000 r/min
Limiting speed for oil lubrication:120000 mm/min
Ball - Dw:4.762 mm
Ball - z:9
Gref:0.258 cm3
Calculation factor - f0:8.3
Preload class A - GA:15 N
Preload class B - GB:30 N
Preload class C - GC:60 N
Preload class D - GD:120 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.01
Calculation factor - f2C:1.03
Calculation factor - f2D:1.06
Calculation factor - fHC:1.01
Preload class A:14 N/micron
Preload class B:19 N/micron
Preload class C:26 N/micron
Preload class D:36 N/micron
r1,2 min.:0.3 mm
r3,4 min.:0.2 mm
da min.:11.4 mm
db min.:11.4 mm
Da max.:23.6 mm
Db max.:24.2 mm
ra max.:0.3 mm
rb max.:0.2 mm
Basic dynamic load rating C:4.1 kN
Basic static load rating C0:1.66 kN
Fatigue load limit Pu:0.071 kN
Attainable speed for grease lubrication:80000 r/min
Attainable speed for oil-air lubrication:120000 r/min
Ball diameter Dw:4.762 mm
Number of balls z:9
Reference grease quantity Gref:0.258 cm³
Preload class A GA:15 N
Static axial stiffness, preload class A:14 N/µm
Preload class B GB:30 N
Static axial stiffness, preload class B:19 N/µm
Preload class C GC:60 N
Static axial stiffness, preload class C:26 N/µm
Preload class D GD:120 N
Static axial stiffness, preload class D:36 N/µm
Calculation factor f:1.02
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.01
Calculation factor f2C:1.03
Calculation factor f2D:1.06
Calculation factor fHC:1.01
Calculation factor f0:8.3
Mass bearing:0.018 kg

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