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KR40 - NTN

KR40

Needle roller bearing, cam follower, with cage, slot for screwdriver, oil hole, spherical outer ring

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
D - External diameter40 mm
d1 - Stud diameter18 mm
C - Width of bearing, drawn cup or outer ring20 mm
F - Under roller diameter22 mm
B - Bearing/Inner ring width21,5 mm
B1 - Total stud length58 mm
B2 - Stud rod length36,5 mm
G - Stud thread designationM18X1.5
G1 - Thread length of the stud19 mm
B3 - Distance between washer face and radial lub hole8 mm
C1 - Distance between roller face and washer face0,8 mm
n - Axial lubrication hole diameter6 mm
a - Radial lubrication hole diameter3 mm
e - Inlet diameter of roller or washer32 mm
R - Track roller radius500 mm
Maximum tightening torque76 N-m
Bearing with/without cageAvec
Radial clearance classCN
Precision classP0
Mass0,248 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating14 kN
C0r - Static load rating22,8 kN
Track load capacity spherical outer ring3,85 kN
N lim - Grease lubrication limit speed7000 tr/min
N lim - Oil lubrication limit speed9000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C