KOMATSU SHOE ASS'Y 20Y-32-01244 - Kate Komatsu part Machinery Co., Ltd

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KOMATSU SHOE ASS'Y 20Y-32-01244 image

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KOMATSU SHOE ASS'Y 20Y-32-01244 Product identifiers

Bearing number:71902 ACD/HCP4A
Size (mm):28x15x7
Bore Diameter (mm):28
Outer Diameter (mm):15
Width (mm):7
d:15 mm
D:28 mm
B:7 mm
d1:18.9 mm
d2:18.9 mm
D1:23.7 mm
r1,2 - min.:0.3 mm
r3,4 - min.:0.2 mm
a:8.5 mm
da - min.:17 mm
db - min.:17 mm
Da - max.:26 mm
Db - max.:26.6 mm
ra - max.:0.3 mm
rb - max.:0.2 mm
dn:20.1 mm
Basic dynamic load rating - C:3.8 kN
Basic static load rating - C0:1.8 kN
Fatigue load limit - Pu:0.078 kN
Limiting speed for grease lubrication:60000 r/min
Limiting speed for oil lubrication:90000 mm/min
Ball - Dw:3.969 mm
Ball - z:13
Gref:0.21 cm3
Calculation factor - e:0.68
Calculation factor - Y2:1.41
Calculation factor - Y0:0.76
Calculation factor - X2:0.67
Calculation factor - Y1:0.92
Preload class A - GA:25 N
Preload class B - GB:50 N
Preload class C - GC:100 N
Preload class D - GD:200 N
Calculation factor - f:1.05
Calculation factor - f1:0.98
Calculation factor - f2A:1
Calculation factor - f2B:1.07
Calculation factor - f2C:1.12
Calculation factor - f2D:1.17
Calculation factor - fHC:1.04
Preload class A:44 N/micron
Preload class B:57 N/micron
Preload class C:74 N/micron
Preload class D:98 N/micron
r1,2 min.:0.3 mm
r3,4 min.:0.2 mm
da min.:17 mm
db min.:17 mm
Da max.:26 mm
Db max.:26.6 mm
ra max.:0.3 mm
rb max.:0.2 mm
Basic dynamic load rating C:3.77 kN
Basic static load rating C0:1.8 kN
Fatigue load limit Pu:0.078 kN
Attainable speed for grease lubrication:60000 r/min
Attainable speed for oil-air lubrication:90000 r/min
Ball diameter Dw:3.969 mm
Number of balls z:13
Reference grease quantity Gref:0.21 cm³
Preload class A GA:25 N
Static axial stiffness, preload class A:44 N/µm
Preload class B GB:50 N
Static axial stiffness, preload class B:57 N/µm
Preload class C GC:100 N
Static axial stiffness, preload class C:74 N/µm
Preload class D GD:200 N
Static axial stiffness, preload class D:98 N/µm
Calculation factor f:1.05
Calculation factor f1:0.98
Calculation factor f2A:1
Calculation factor f2B:1.07
Calculation factor f2C:1.12
Calculation factor f2D:1.17
Calculation factor fHC:1.04
Calculation factor e:0.68
Calculation factor (single, tandem) Y2:0.87
Calculation factor (single, tandem) Y0:0.38
Calculation factor (single, tandem) X2:0.41
Calculation factor (back-to-back, face-to-face) Y1:0.92
Calculation factor (back-to-back, face-to-face) Y2:1.41
Calculation factor (back-to-back, face-to-face) Y0:0.76
Calculation factor (back-to-back, face-to-face) X2:0.67
Mass bearing:0.014 kg

Main Products: Load Wheel, Chain Wheel, Drive Wheel, Gear Block, Guide Wheel, Chain Rail Assembly, Track Assembly, Track Plate and High Strength Bolt. Other products: chain link, chain pin, bucket shaft, bucket shaft sleeve, swing frame, connecting rod, chain bracket, tension cylinder, tension spring, U-frame, large and small arm cylinder assembly, rubber block, bucket teeth, tooth base, etc.

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Kate Komatsu part Machinery Co., Ltd: Email; AddressJiulong wan ,Hong kong,china; Phone(Working Time); Fax

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