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K81128 - NTN

K81128

Needle roller bearing, thrust cylindrical roller bearing, cage assembly, K811 series

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
Dw - Rolling element diameter12 mm
Dc1 - Roller cage bore diameter140 mm
Dc - Roller cage outer diameter180 mm
Bearing ring (inner ring) WSWS81128
Bearing ring (outer ring) GSGS81128
Ea - Rollers reference outer diameter172,5 mm
Eb - Rollers reference inner diameter147,8 mm
Cage assembly mass0,45 kg
Product classification image
PRODUCT PERFORMANCE
Ca - Dynamic axial load rating206 kN
C0a - Static axial load rating815 kN
Cua - Limit axial load rating86 kN
Nlim - Grease lubrication limit speed380 tr/min
Nlim - Oil lubrication limit speed1500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C