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21320CKE4

Spherical Roller Bearings
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Images shown are representations. Designs and specifications may differ from actual products.
Parts Number
21320CKE4 Spherical Roller Bearings
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Parts Number

21320CKE4

Boundary Dimensions

d 100 mm Bore diameter
D 215 mm Outside diameter
B 47 mm Width
r (min.) 3 mm Chamfer dimension

Basic Load Ratings

Cr 495000 N Basic dynamic load rating
C0r 485000 N Basic static load rating

Speeds

Thermal Speed Rating (Oil-bath) 3400 min-1 Oil-bath lubrication subject to conditions outlined in ISO 15312
Mechanical (forced-circulation oil) 4500 min-1 Properly designed and controlled forced-circulation oil lubrication
Grease 1400 min-1 Grease lubrication
Oil (Oil-bath) 1900 min-1 Oil-bath lubrication

Abutment and Fillet Dimensions

da (min.) 114 mm Diameter of shaft abutment
da (max.) 133 mm Diameter of shaft abutment
Da (min.) 184 mm Diameter of housing abutment
Da (max.) 201 mm Diameter of housing abutment
ra (max.) 2.5 mm Radius of shaft or housing fillet

Calculation factors

e 0.21 Constant
Y2 4.7 Axial load Factors
Y3 3.2 Axial load Factors
Y0 3.1 Axial load Factors

Mass

(approx.) 8.46 kg

Associated products

Adapter H320X Adapter
Withdrawal sleeve AHX3120 Withdrawal sleeve
Designations Boundary Dimensions Basic Load Ratings Radial Internal Clearance Tolerance Class Speeds Mass
Limiting Speeds
d
(mm)		 D
(mm)		 B
(mm)		 Cr
(N)		 C0r
(N)		 min
 max
 Thermal Speed Rating (Oil-bath)
(min-1)		 Mechanical (forced-circulation oil)
(min-1)		 Grease
(min-1)		 Oil (Oil-bath)
(min-1)		 (approx.)
(kg)
21320CKE4 100 215 47 495000 485000 ISO NORMAL CLASS 3400 4500 1400 1900 8.46

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Not to scale.
(*) The chamfer dimensions are minimum values.
Suffix K and K30 represents bearings with tapered bores (taper 1:12 or 1:30).

CAD
More Information
NSK Product Type2 SRB_CTB
NSK Product Type Bearing
Designations 21320CKE4

© NSK Ltd.

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