23980 ISB Spherical Roller Bearings

23980 ISB Spherical Roller Bearings

Name	23980	23980	23980 KCW33
Brand	NTN	ISB	CX
rs min	4 mm 0.1575 in
Number of lubrication holes	8
b	16 mm 0.6299 in
k	10 mm 0.3937 in
e	0.18
Y1	3.71
Y2	5.53
Y0	3.63
Radial clearance class	CN
Dynamic load, C	1,580 kN
Static load, C0	3,650 kN
Fatigue limit load, Cu	296 kN
Nref	750 rpm
Nlim	1,000 rpm
Min operating temperature, Tmin	-40 °C
Max operating temperature, Tmax	120 °C
Characteristic cage frequency, FTF	0.47 Hz
Characteristic rolling element frequency, BSF	15.18 Hz
Characteristic outer ring frequency, BPF0	18.7 Hz
Characteristic inner ring frequency, BPFI	21.3 Hz
da min	414.6 mm 16.3228 in
Da max	525.4 mm 20.6851 in
ra max	3 mm 0.1181 in
Category	Bearings
BDI Inventory	0.0
Manufacturer Name	NTN
Minimum Buy Quantity	N/A
Weight / Kilogram	73
Product Group - BDI	B04311
Size (mm)	400x540x106(mm)	400x540x106(mm)	400x540x106(mm)
Bore Diameter (mm)	400(mm)	400(mm)	400(mm)
Outer Diameter (mm)	540(mm)	540(mm)	540(mm)
Width (mm)	106(mm)	106(mm)	106(mm)
d	400 mm 15.748 in	400 mm 15.748 in	400 mm 15.748 in
D	540 mm 21.2599 in	540 mm 21.2599 in	540 mm 21.2599 in
B	106 mm 4.1732 in	106 mm 4.1732 in	106 mm 4.1732 in
C	106 mm 4.1732 in	106 mm 4.1732 in	106 mm 4.1732 in
r min.	4 mm 0.1575 in
da min.	418 mm 16.4567 in
Da max.	522 mm 20.5512 in
ra max.	3 mm 0.1181 in
Weight	73 Kg	71 Kg	71 Kg
Basic dynamic load rating (C)	1 580 kN	1960 kN	1730 kN
Basic static load rating (C0)	3 650 kN	3822 kN	3900 kN
(Grease) Lubrication Speed	550 r/min	918 r/min	750 r/min
(Oil) Lubrication Speed	720 r/min
Calculation factor (e)	0,18
Calculation factor (Y0)	3,63
Calculation factor (Y1)	3,71

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