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81108T2 - NTN

81108T2

Needle roller bearing, thrust cylindrical roller bearing, 811 series

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
d - Bore diameter of support washer IR - WS40 mm
D - Outside diameter of support washer OR - GS60 mm
d1 - External diameter of support washer IR - WS60 mm
D1 - Bore diameter bearing washer OR - GS42 mm
T - Thrust bearing height13 mm
Dc1 - Roller cage bore diameter40 mm
Dc - Roller cage outer diameter60 mm
rs - Min fillet radius0,6 mm
Cage assembly referenceK81108T2
Bearing ring (inner ring) WSWS81108
Bearing ring (outer ring) GSGS81108
Ea - Rollers reference outer diameter56,4 mm
Eb - Rollers reference inner diameter43,2 mm
Mass0,135 kg
Cage assembly mass0,035 kg
Bearing ring (inner ring) WS mass0,044 kg
Bearing ring (outer ring) GS mass0,044 kg
Product classification image
PRODUCT PERFORMANCE
Ca - Dynamic axial load rating43 kN
C0a - Static axial load rating121 kN
Cua - Limit axial load rating14,8 kN
Nlim - Grease lubrication limit speed1200 tr/min
Nlim - Oil lubrication limit speed4800 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)8,5 Hz
BPFI - Characteristic inner ring frequency (60 rpm)8,5 Hz
FTF - Characteristic cage frequency (60 rpm)0,5 Hz
BSF - Characteristic rolling element frequency (60 rpm)8,3 Hz
ABUTMENT
da min - Min shoulder diameter IR56 mm
Db max - Max OR shoulder diameter44 mm
ras max - Max shaft & housing fillet radius0,6 mm