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JM612949/JM612910

Inch Design Tapered Roller Bearings
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Parts Number
JM612949/JM612910 Inch Series Tapered Roller Bearings
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Display units

Parts Number

JM612949/JM612910

Boundary Dimensions

d 70 mm Bore diameter
D 115 mm Outside diameter
T 29 mm Total width
B 29 mm Width of inner ring
C 23 mm Width of outer ring
Cup r (min.) 2.5 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 155000 N Basic dynamic load rating
C0r 177000 N Basic static load rating

Speeds

Grease 3000 min-1 Grease lubrication
Oil (Oil-bath) 4000 min-1 Oil-bath lubrication

Dimensions

a 25.9 mm Effective load center

Abutment and Fillet Dimensions

da 83 mm Diameter of shaft abutment
Da 103 mm Diameter of housing abutment
db 77 mm Diameter of shaft abutment
Db 110 mm Diameter of housing abutment
ra (max.) 3 mm Radius of shaft or housing fillet of inner ring
ra (max.) 2.5 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.43 Constant
Y0 0.77 Axial load Factors
Y1 1.4 Axial load Factors

Mass

CONE (approx.) 0.816 kg
CUP (approx.) 0.362 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations JM612949/JM612910

© NSK Ltd.

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