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NK21/16R+1R17X21X16 - NTN

NK21/16R+1R17X21X16

Needle roller bearing, machined-rings, with inner ring, double-side ribs, lubrication hole

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Technical datasheet

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Specs

PRODUCT DEFINITION

d - Internal diameter 17 mm
D - External diameter 29 mm
C - Width of bearing, drawn cup or outer ring 16 mm
F - Under roller diameter 21 mm
rs - Min fillet radius 0,3 mm
s - Max axial offset 0,5 mm
Lubrication hole on outer ring Yes
k - Hole diameter 2,5 mm
Inner ring reference 1R17X21X16
Lubrication hole on inner ring No
Radial clearance class CN
Precision class P0
Mass 0,042 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Cr - Dynamic load rating 13,7 kN
C0r - Static load rating 18,7 kN
Nlim - Grease lubrication limit speed 13000 tr/min
Nlim - Oil lubrication limit speed 19000 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 19 mm
Da max - Max shoulder diameter OR 27 mm
ras max - Max shaft & housing fillet radius 0,3 mm