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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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Specs

PRODUCT DIMENSIONS

Bore diameter of support washer IR - WS (d) 45 mm
Outside diameter of support washer OR - GS (D) 73 mm
External diameter of support washer IR - WS (d1) 73 mm
Bore diameter bearing washer OR - GS (D1) 47 mm
Thrust bearing height (T) 20 mm
Roller cage bore diameter (Dc1) 45 mm
Roller cage outer diameter (Dc) 73 mm
Min fillet radius (rs) 1 mm
Cage assembly reference K81209T2
Bearing ring (inner ring) WS WS81209
Bearing ring (outer ring) GS GS81209
Rollers reference outer diameter (Ea) 68 mm
Rollers reference inner diameter (Eb) 48,8 mm
Mass 0,31 kg
Cage assembly mass 0,1 kg
Bearing ring (inner ring) WS mass 0,105 kg
Bearing ring (outer ring) GS mass 0,105 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic axial load rating (Ca) 82 kN
Static axial load rating (C0a) 222 kN
Limit axial load rating (Cua) 27 kN
Nlim (grease) 1000 tr/min
Nlim (oil) 4100 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C

ABUTMENT

Min shoulder diameter IR (da min) 68 mm
Max OR shoulder diameter (Db max) 49 mm
Max shaft & housing fillet radius (ras max) 1 mm