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81209T2 - NTN

81209T2

Needle roller bearing, thrust cylindrical roller bearing, 812 series

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
d - Bore diameter of support washer IR - WS45 mm
D - Outside diameter of support washer OR - GS73 mm
d1 - External diameter of support washer IR - WS73 mm
D1 - Bore diameter bearing washer OR - GS47 mm
T - Thrust bearing height20 mm
Dw - Rolling element diameter9 mm
Dc1 - Roller cage bore diameter45 mm
Dc - Roller cage outer diameter73 mm
rs - Min fillet radius1 mm
Cage assembly referenceK81209T2
Bearing ring (inner ring) WSWS81209
Bearing ring (outer ring) GSGS81209
Ea - Rollers reference outer diameter68 mm
Eb - Rollers reference inner diameter48,8 mm
Mass0,31 kg
Cage assembly mass0,1 kg
Bearing ring (inner ring) WS mass0,105 kg
Bearing ring (outer ring) GS mass0,105 kg
Product classification image
PRODUCT PERFORMANCE
Ca - Dynamic axial load rating82 kN
C0a - Static axial load rating222 kN
Cua - Limit axial load rating27 kN
Nlim - Grease lubrication limit speed1000 tr/min
Nlim - Oil lubrication limit speed4100 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR68 mm
Db max - Max OR shoulder diameter49 mm
ras max - Max shaft & housing fillet radius1 mm