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HR303/28

Metric Series Tapered Roller Bearings
Metric Series Tapered Roller Bearings

Product Information

Designations

HR303/28

Boundary Dimensions

d 28 mm
D 68 mm
B 18 mm
T 19.75 mm
C 15 mm
Cup r (min.) 1.5 mm
Cone r (min.) 1.5 mm

Basic Load Ratings

Cr 68000 N Basic dynamic load rating
C0r 55500 N Basic static load rating

Speeds

Grease 6000 min-1
Oil 8000 min-1

Dimensions

a 14.5 mm

Abutment and Fillet Dimensions

da (min.) 39 mm
db (max.) 37 mm
Da (min.) 58 mm
Db(min.) 61 mm
Da(max.) 59 mm
Sa 2 mm
Sb 4.5 mm
ra (max.) 1.5 mm

Calculation factors

e 0.31
Y1 1.9
Y0 1.1

Additional information

Mass

(approx.) 0.341 kg