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81207T2 - NTN

81207T2

Rolamento de agulha, rolamento axial de rolos cilíndricos, série 812

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Arquivo 3D

Folha de dados técnica

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Contate-Nos
CARACTERÍSTICAS TÉCNICAS
MarcaNTN
d - Bore diameter of support washer IR - WS35 mm
D - Outside diameter of support washer OR - GS62 mm
d1 - External diameter of support washer IR - WS62 mm
D1 - Bore diameter bearing washer OR - GS37 mm
T - Thrust bearing height18 mm
Dc1 - Roller cage bore diameter35 mm
Dc - Roller cage outer diameter62 mm
rs - Min fillet radius1 mm
Cage assembly referenceK81207T2
Bearing ring (inner ring) WSWS81207
Bearing ring (outer ring) GSGS81207
Ea - Rollers reference outer diameter56 mm
Eb - Rollers reference inner diameter39,8 mm
Peso0,235 kg
Cage assembly mass0,065 kg
Bearing ring (inner ring) WS mass0,085 kg
Bearing ring (outer ring) GS mass0,085 kg
Product classification image
DESEMPENHO
Ca - Dynamic axial load rating54,5 kN
C0a - Static axial load rating139 kN
Cua - Limit axial load rating17 kN
Nlim - Grease lubrication limit speed1200 tr/min
Nlim - Oil lubrication limit speed4900 tr/min
Tmin - Temperatura mín de operação-20 °C
Tmax - Temperatura máx de operação120 °C
FREQUÊNCIAS DE ROLAMENTO
BPFO - Frequência de passagem na pista externa (60 rpm)6,5 Hz
BPFI - Frequência de passagem na pista interna (60 rpm)6,5 Hz
FTF - Frequência de giro da gaiola (60 rpm)0,5 Hz
BSF - Frequência de giro do elemento rolante (60 rpm)6,387 Hz
RECOMENDACOES DE BARREIRA
da min - Min shoulder diameter IR56 mm
Db max - Max OR shoulder diameter41 mm
ras max - Max shaft & housing fillet radius1 mm