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L21549/L21511 Series

Inch Design Tapered Roller Bearings
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Parts Number Qty
L21549/L21511 Inch Series Tapered Roller Bearings
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L21549R/L21511R Inch Series Tapered Roller Bearings
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Display units

Designations

L21549/L21511

Boundary Dimensions

d 15.875 mm Bore diameter
D 34.988 mm Outside diameter
T 10.998 mm Total width
B 10.998 mm Width of inner ring
C 8.712 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 17000 N Basic dynamic load rating
C0r 13400 N Basic static load rating

Speeds

Grease 11000 min-1 Grease lubrication
Oil (Oil-bath) 15000 min-1 Oil-bath lubrication

Dimensions

a 7.7 mm Effective load center

Abutment and Fillet Dimensions

da 21.5 mm Diameter of shaft abutment
Da 29 mm Diameter of housing abutment
db 19.5 mm Diameter of shaft abutment
Db 32.5 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 0.32 Constant
Y0 1 Axial load Factors
Y1 1.9 Axial load Factors

Mass

CONE (approx.) 0.031 kg
CUP (approx.) 0.018 kg

Properties

Cage ( ): Pressed steel cage
Tolerance ISO NORMAL CLASS
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations L21549/L21511

© NSK Ltd.

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