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LM12749/LM12710

Inch Design Tapered Roller Bearings
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Parts Number
LM12749/LM12710 Inch Series Tapered Roller Bearings
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Display units

Parts Number

LM12749/LM12710

Boundary Dimensions

d 22 mm Bore diameter
D 45.237 mm Outside diameter
T 15.494 mm Total width
B 16.637 mm Width of inner ring
C 12.065 mm Width of outer ring
Cup r (min.) 1.3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 1.3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 36000 N Basic dynamic load rating
C0r 33500 N Basic static load rating

Speeds

Grease 8500 min-1 Grease lubrication
Oil (Oil-bath) 11000 min-1 Oil-bath lubrication

Dimensions

a 10 mm Effective load center

Abutment and Fillet Dimensions

da 27.5 mm Diameter of shaft abutment
Da 39.5 mm Diameter of housing abutment
db 26 mm Diameter of shaft abutment
Db 42.5 mm Diameter of housing abutment
ra (max.) 1.3 mm Radius of shaft or housing fillet of inner ring
ra (max.) 1.3 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.31 Constant
Y0 1.1 Axial load Factors
Y1 2 Axial load Factors

Mass

CONE (approx.) 0.078 kg
CUP (approx.) 0.038 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations LM12749/LM12710

© NSK Ltd.

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