Documentation

Product information

PRODUCT DEFINITION
Brand	NTN
d - Bore diameter of support washer IR - WS	40 mm
D - Outside diameter of support washer OR - GS	78 mm
d1 - External diameter of support washer IR - WS	78 mm
D1 - Bore diameter bearing washer OR - GS	42 mm
T - Thrust bearing height	22 mm
Dw - Rolling element diameter	7 mm
Dc1 - Roller cage bore diameter	40 mm
Dc - Roller cage outer diameter	78 mm
rs - Min fillet radius	1 mm
Cage assembly reference	K89308
Bearing ring (inner ring) WS	WS89308
Bearing ring (outer ring) GS	GS89308
Ea - Rollers reference outer diameter	74,4 mm
Eb - Rollers reference inner diameter	46 mm
Mass	0,52 kg
Cage assembly mass	0,1 kg
Bearing ring (inner ring) WS mass	0,21 kg
Bearing ring (outer ring) GS mass	0,21 kg

PRODUCT PERFORMANCE
Ca - Dynamic axial load rating	85 kN
C0a - Static axial load rating	277 kN
Cua - Limit axial load rating	34 kN
N lim - Grease lubrication limit speed	1000 tr/min
N lim - Oil lubrication limit speed	4000 tr/min
Tmin - Min operating temperature	-20 °C
Tmax - Max operating temperature	120 °C

ABUTMENT
da min - Min shoulder diameter IR	74 mm
Db max - Max OR shoulder diameter	46 mm
ras max - Max shaft & housing fillet radius	1 mm