KOMATSU 8256-71-1181 BRACKET - Kate Komatsu part Machinery Co., Ltd

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KOMATSU 8256-71-1181 BRACKET image

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KOMATSU 8256-71-1181 BRACKET Technology

Bearing number:4T-JM738249/JM738210
Size (mm):190x260x46
Bore Diameter (mm):190
Outer Diameter (mm):260
Width (mm):46
d:190 mm
D:260 mm
T:46 mm
B:44 mm
C:36,5 mm
ra1 max.:2,5 mm
a -:10,9 mm
Da:242 mm
db:200 mm
ra max.:3 mm
da:206 mm
Db:252 mm
Weight:6,85 Kg
Basic dynamic load rating (C):365 kN
Basic static load rating (C0):720 kN
(Grease) Lubrication Speed:1 200 r/min
(Oil) Lubrication Speed:1 600 r/min
Calculation factor (e):0,48
Calculation factor (Y0):0,69
d1:227 mm
a:56.9 mm
e:0.48
Y2:1.26
Y0:0.69
Mass:6.85 kg
Dynamic load, C:365 kN
Rating life coefficient, A2:1.4
Static load, C0:720 kN
Fatigue limit load, Cu:68.9 kN
Nlim (oil):1,600 rpm
Nlim (grease):1,200 rpm
Min operating temperature, Tmin:-40 °C
Max operating temperature, Tmax:120 °C
Characteristic cage frequency, FTF:0.46 Hz
Characteristic rolling element frequency, BSF:13.48 Hz
Characteristic outer ring frequency, BPF0:15.8 Hz
Characteristic inner ring frequency, BPFI:18.2 Hz
ra max:3 mm
r1a max:2.5 mm

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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