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2311K

Self-Aligning Ball Bearings
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Images shown are representations. Designs and specifications may differ from actual products.
Parts Number
2311K Self-Aligning Ball Bearings
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Parts Number

2311K

Boundary Dimensions

d 55 mm Bore diameter
D 120 mm Outside diameter
B 43 mm Width
r (min.) 2 mm Chamfer dimension

Basic Load Ratings

Cr 84000 N Basic dynamic load rating
C0r 24000 N Basic static load rating

Speeds

Grease 4800 min-1 Grease lubrication
Oil (Oil-bath) 6000 min-1 Oil-bath lubrication

Abutment and Fillet Dimensions

da (min.) 64 mm Diameter of shaft abutment
Da (max.) 111 mm Diameter of housing abutment
ra (max.) 2 mm Radius of shaft or housing fillet

Calculation factors

e 0.41 Constant
Y2 2.4 Axial load Factors
Y3 1.5 Axial load Factors
Y0 1.6 Axial load Factors

Mass

(approx.) 2.03 kg

Associated products

Adapter H2311X Adapter
Designations Boundary Dimensions Basic Load Ratings Radial Internal Clearance Tolerance Class Limiting Speeds Mass
d
(mm)		 D
(mm)		 B
(mm)		 Cr
(N)		 C0r
(N)		 min
 max
 Grease
(min-1)		 Oil (Oil-bath)
(min-1)		 (approx.)
(kg)
2311K 55 120 43 84000 24000 ISO NORMAL CLASS 4800 6000 2.03

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Not to scale.
(*) The chamfer dimensions are minimum values.
Suffix K represents bearings with tapered bores (taper 1:12).

CAD
More Information
NSK Product Type2 SABB_SA
NSK Product Type Bearing
Designations 2311K

© NSK Ltd.

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