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NU221EM

Single-Row Cylindrical Roller Bearings
Single-Row Cylindrical Roller Bearings

Product Information

Designations

NU221EM

Boundary Dimensions

d 105 mm
D 190 mm
B 36 mm
FW 125 mm
r (min.） 2.1 mm
r1 (min.) 2.1 mm

Basic Load Ratings

Cr 320000 N Basic dynamic load rating
C0r 310000 N Basic static load rating

Speeds

Thermal Speed Rating (Oil-bath) 4300 min-1
Mechanical (forced-circulation oil) 6000 min-1
Grease 3400 min-1

Dimensions

Abutment and Fillet Dimensions

db (min.) 116 mm
dc (min.) 129 mm
db (max.) 121 mm
Da(max.) 179 mm
ra (max.) 2 mm

Calculation factors

Additional information

Mass

(approx.) 4.48 kg