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81226 - NTN

81226

Needle roller bearing, thrust cylindrical roller bearing, 812 series

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Technical datasheet

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Specs

PRODUCT DEFINITION

d - Bore diameter of support washer IR - WS 130 mm
D - Outside diameter of support washer OR - GS 190 mm
d1 - External diameter of support washer IR - WS 187 mm
D1 - Bore diameter bearing washer OR - GS 133 mm
T - Thrust bearing height 45 mm
Dc1 - Roller cage bore diameter 130 mm
Dc - Roller cage outer diameter 190 mm
rs - Min fillet radius 1,5 mm
Cage assembly reference K81226
Bearing ring (inner ring) WS WS81226
Bearing ring (outer ring) GS GS81226
Ea - Rollers reference outer diameter 179 mm
Eb - Rollers reference inner diameter 140,1 mm
Mass 4,2 kg
Cage assembly mass 1,14 kg
Bearing ring (inner ring) WS mass 1,53 kg
Bearing ring (outer ring) GS mass 1,53 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Ca - Dynamic axial load rating 360 kN
C0a - Static axial load rating 1210 kN
Cua - Limit axial load rating 128 kN
Nlim - Grease lubrication limit speed 380 tr/min
Nlim - Oil lubrication limit speed 1500 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 178 mm
Db max - Max OR shoulder diameter 140 mm
ras max - Max shaft & housing fillet radius 1,5 mm