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NA4918R - NTN

NA4918R

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 90 mm
D - External diameter 125 mm
C - Width of bearing, drawn cup or outer ring 35 mm
F - Under roller diameter 105 mm
rs - Min fillet radius 1,1 mm
s - Max axial offset 1 mm
Lubrication hole on outer ring Yes
k - Hole diameter 3,5 mm
Lubrication hole on inner ring No
Radial clearance class CN
Precision class P0
Mass 1,84 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Cr - Dynamic load rating 116 kN
C0r - Static load rating 252 kN
Nlim - Grease lubrication limit speed 2500 tr/min
Nlim - Oil lubrication limit speed 3800 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 96,5 mm
Da max - Max shoulder diameter OR 118,5 mm
ras max - Max shaft & housing fillet radius 1 mm