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55BER19X

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings
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Parts Number
55BER19XTE34SUMP3+Y3 ROBUST Series Ultra High-Speed Angular Contact Ball Bearings
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Parts Number

55BER19XTE34SUMP3+Y3

Boundary Dimensions

BER: 25° Bearing Type
d 55 mm Bore diameter
D 80 mm Outside diameter
B 13 mm Width
BN 2.8 mm
SN 7.5 mm
SB 1.4 mm
r(min.) 1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 27.5 kN Basic Dynamic Load Rating
C0r 10.4 kN Basic Static Load Rating

Speeds

Grease 28200 min-1 Limiting Speed
Oil (Oil-air) 44500 min-1 Limiting Speed

Dimensions

25° Contact Angle
a 22.2 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 61 mm Diameter of Shaft Abutment
Da(max.) 74 mm Diameter of Housing Abutment
Db(max.) 75 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.5 mm Radius of Shaft or Housing Fillet

Performance

Pa 12.9 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 49N 85N/μm 0μm
L 296N 158N/μm -8μm
M 615N 206N/μm -15μm

Additional information

1.1 g/brg Recommended Grease Quantities

Mass

0.158 kg Mass(approx.)
Designations Basic Load Ratings Axial Internal Clearance Accuracy Limiting Speeds Mass
Cr
 C0r
 min
 max
 Grease
(min-1)		 Oil (Oil-air)
(min-1)
(kg)
55BER19XTE34SUMP3+Y3 27.5 10.4 P3: Special class (ISO Class 4 dimensional tolerances and ISO Class 2 running accuracy.) 28200 44500 0.158

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CAD
More Information
NSK Product Type2 SP_ACBB_RS_BER
NSK Product Type Super Precision Bearing
Designations 55BER19X

© NSK Ltd.

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