Documentation

Product information

CARACTERÍSTICAS TÉCNICAS
Marca	NTN
d - Bore diameter of support washer IR - WS	55 mm
D - Outside diameter of support washer OR - GS	90 mm
d1 - External diameter of support washer IR - WS	90 mm
D1 - Bore diameter bearing washer OR - GS	57 mm
T - Thrust bearing height	25 mm
Dw - Rolling element diameter	11 mm
Dc1 - Roller cage bore diameter	55 mm
Dc - Roller cage outer diameter	90 mm
rs - Min fillet radius	1 mm
Cage assembly reference	K81211T2
Bearing ring (inner ring) WS	WS81211
Bearing ring (outer ring) GS	GS81211
Ea - Rollers reference outer diameter	83,4 mm
Eb - Rollers reference inner diameter	60,1 mm
Peso	0,61 kg
Cage assembly mass	0,19 kg
Bearing ring (inner ring) WS mass	0,21 kg
Bearing ring (outer ring) GS mass	0,21 kg

DESEMPENHO
Ca - Dynamic axial load rating	121 kN
C0a - Static axial load rating	340 kN
Cua - Limit axial load rating	41,5 kN
N lim - Grease lubrication limit speed	830 tr/min
N lim - Oil lubrication limit speed	3300 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	83 mm
Db max - Max OR shoulder diameter	61 mm
ras max - Max shaft & housing fillet radius	1 mm