TR250M-3 Slewing Bearings For Cranes

Bearing number: 6980
Size (mm): 400x540x65
Bore Diameter (mm): 400
Outer Diameter (mm): 540
Width (mm): 65
d: 400 mm
D: 540 mm
B: 65 mm
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Product Details

Bearing number 6980
Size (mm) 400x540x65
Bore Diameter (mm) 400
Outer Diameter (mm) 540
Width (mm) 65
d 400 mm
D 540 mm
B 65 mm
C 65 mm
r min. 4 mm
Da max. 524 mm
db min 416 mm
ra max. 3 mm
Weight 41,6 Kg
Basic dynamic load rating (C) 335 kN
Basic static load rating (C0) 535 kN
(Grease) Lubrication Speed 990 r/min
(Oil) Lubrication Speed 1 200 r/min
d1 445.2 mm
D1 494.8 mm
rs min 4 mm
Radial clearance class CN
Mass 42.1 kg
Dynamic load, C 335 kN
Static load, C0 535 kN
Fatigue limit load, Cu 0 kN
f0 16.5
Nlim (oil) 1,200 rpm
Nlim (grease) 990 rpm
Min operating temperature, Tmin -20 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0.46 Hz
Characteristic rolling element frequency, BSF 11.3 Hz
Characteristic outer ring frequency, BPF0 8.67 Hz
Characteristic inner ring frequency, BPFI 10.33 Hz
da min 416 mm
da max 445 mm
Da max 524 mm
ra max 3 mm
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