Documentation

Product information

CARACTERÍSTICAS TÉCNICAS
Marca	NTN
d - Bore diameter of support washer IR - WS	140 mm
D - Outside diameter of support washer OR - GS	180 mm
d1 - External diameter of support washer IR - WS	178 mm
D1 - Bore diameter bearing washer OR - GS	142 mm
T - Thrust bearing height	31 mm
Dw - Rolling element diameter	12 mm
Dc1 - Roller cage bore diameter	140 mm
Dc - Roller cage outer diameter	180 mm
rs - Min fillet radius	1 mm
Cage assembly reference	K81128
Bearing ring (inner ring) WS	WS81128
Bearing ring (outer ring) GS	GS81128
Ea - Rollers reference outer diameter	172,5 mm
Eb - Rollers reference inner diameter	147,8 mm
Peso	1,95 kg
Cage assembly mass	0,45 kg
Bearing ring (inner ring) WS mass	0,75 kg
Bearing ring (outer ring) GS mass	0,75 kg

DESEMPENHO
Ca - Dynamic axial load rating	206 kN
C0a - Static axial load rating	815 kN
Cua - Limit axial load rating	86 kN
N lim - Grease lubrication limit speed	380 tr/min
N lim - Oil lubrication limit speed	1500 tr/min
Tmin - Temperatura mín de operação	-20 °C
Tmax - Temperatura máx de operação	120 °C

RECOMENDACOES DE BARREIRA
da min - Min shoulder diameter IR	172 mm
Db max - Max OR shoulder diameter	147 mm
ras max - Max shaft & housing fillet radius	1 mm