NSK 21307CDKE4 bearings
21307CDKE4, NSK, Spherical roller bearing with tapered bore

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NSK, Spherical roller bearing with tapered bore
Measurement system
Metric
Bore diameter
35.000 mm
Outside diameter
80.000 mm
Width
21.000 mm
Cr
71500 N
C0r
76000 N
Limiting speed
5300 r/min
Net weight
0.53 kg
Number of rows
2
Sealing
Without
Locating feature
Without
Cage
Steel sheet metal
Bore type
Tapered
Bearing material
Steel
Rolling material
Steel
Tolerance class
Normal (PN)
Internal clearance
CN
Lubricant in bearing
None
Relubrication feature
With

In stock

Technical specification for NSK 21307CDKE4

NSK 21307CDKE4
NSK Designation 21307CDKE4
Boundary Dimensions
d 35 mm Bore diameter
D 80 mm Outside diameter
B 21 mm Width
r (min.) 1.5 mm Chamfer dimension
Basic Load Ratings
Cr 71500 N Basic dynamic load rating
C0r 76000 N Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath) 7100 r/min Oil-bath lubrication subject to conditions outlined in ISO 15312
Grease 4000 r/min Grease lubrication
Oil (Oil-bath) 5300 r/min Oil-bath lubrication
Abutment and Fillet Dimensions
da min. 44 mm Diameter of shaft abutment
da max. 47 mm Diameter of shaft abutment
Da min. 67 mm Diameter of housing abutment
Da max. 71 mm Diameter of housing abutment
ra max. 1.5 mm Radius of shaft or housing fillet
Calculation factors
e 0.28 Constant
Y2 3.6 Axial load Factors
Y3 2.4 Axial load Factors
Y0 2.4 Axial load Factors
Mass
Mass (approx.) 0.53 kg  
NSK, Spherical roller bearing with tapered bore

NSK 21307CDKE4 spherical roller bearing is designed for high load capacity. 21307CDKE4 bearing have machined brass cage, and the inner ring is tapered bore 1:12. An oil groove and holes are privided in the outer ring so supply lubricant. Boundary dimensions: 35 x 80 x 21 mm.

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