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81120T2 - NTN

81120T2

Needle roller bearing, thrust cylindrical roller bearing, 811 series

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Technical datasheet

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Specs

PRODUCT DEFINITION

d - Bore diameter of support washer IR - WS 100 mm
D - Outside diameter of support washer OR - GS 135 mm
d1 - External diameter of support washer IR - WS 135 mm
D1 - Bore diameter bearing washer OR - GS 102 mm
T - Thrust bearing height 25 mm
Dc1 - Roller cage bore diameter 100 mm
Dc - Roller cage outer diameter 135 mm
rs - Min fillet radius 1 mm
Cage assembly reference K81120T2
Bearing ring (inner ring) WS WS81120
Bearing ring (outer ring) GS GS81120
Ea - Rollers reference outer diameter 128,7 mm
Eb - Rollers reference inner diameter 105,1 mm
Mass 1 kg
Cage assembly mass 0,3 kg
Bearing ring (inner ring) WS mass 0,35 kg
Bearing ring (outer ring) GS mass 0,35 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Ca - Dynamic axial load rating 158 kN
C0a - Static axial load rating 555 kN
Cua - Limit axial load rating 65 kN
Nlim - Grease lubrication limit speed 500 tr/min
Nlim - Oil lubrication limit speed 2000 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 128 mm
Db max - Max OR shoulder diameter 106 mm
ras max - Max shaft & housing fillet radius 1 mm