N205-E-G15 SNR/NTN Single Row Cylindrical Roller Bearing 25x52x15mm

NTN N Design
The inner ring of an N design bearing has two integral flanges while the outer ring has no flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions.

PRODUCT DEFINITION
Brand	SNR/NTN
d - Internal diameter	25 mm
D - External diameter	52 mm
B - Bearing/Inner ring width	15 mm
E - Upper roller diameter	46,5 mm
F - Under roller diameter	31,5 mm
d1 - IR flange outer diameter	34,7 mm
rs - Min fillet radius	1 mm
r1s - Min fillet radius	0,6 mm
Radial clearance class	CN
Mass	0,135 kg

PRODUCT PERFORMANCE
C - Dynamic load	28,5 kN
C0 - Static load	26,7 kN
Cu - Fatigue limit load	3,25 kN
N ref - Reference thermal speed	12000 tr/min
N lim - Mechanical Limit Speed	17000 tr/min
N lim - Oil lubrication limit speed	14000 tr/min
N lim - Grease lubrication limit speed	11000 tr/min
Tmin - Min operating temperature	-20 °C
Tmax - Max operating temperature	120 °C

BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)	5,25 Hz
BPFI - Over rolling frequency on inner (60 rpm)	7,75 Hz
BSF - Over rolling frequency on rolling element (60 rpm)	5,008 Hz
BRF - Rotational frequency – rolling element (60 rpm)	2,504 Hz
FTF - Rotational frequency - cage (60 rpm)	0,404 Hz

ABUTMENT
da min - Min shoulder diameter IR	30 mm
Da max - Max shoulder diameter OR	48 mm
Db min - Small face shoulder min diameter	47 mm
Dc max - Max outer ring GO diameter	44 mm
ra max - Max fillet radius	1 mm
r1a - Max fillet radius	0,6 mm