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NJ311EM

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

Product Information

Designations

NJ311EM

Boundary Dimensions

d 55 mm
D 120 mm
B 29 mm
FW 70.5 mm
r (min.） 2 mm
r1 (min.) 2 mm

Basic Load Ratings

Cr 169000 N Basic dynamic load rating
C0r 143000 N Basic static load rating

Speeds

Thermal Speed Rating (Oil-bath) 6000 min-1
Mechanical (forced-circulation oil) 10000 min-1
Grease 4500 min-1

Dimensions

Abutment and Fillet Dimensions

db (min.) 64 mm
db (max.) 68 mm
dd(min) 80 mm
Da(max.) 111 mm
ra (max.) 2 mm

Calculation factors

Additional information

Mass

(approx.) 1.67 kg