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55BER10H

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings
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Parts Number
55BER10HTYNSUMP4Y ROBUST Series Ultra High-Speed Angular Contact Ball Bearings
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Parts Number

55BER10HTYNSUMP4Y

Boundary Dimensions

BER: 25° Bearing Type
d 55 mm Bore diameter
D 90 mm Outside diameter
B 18 mm Width
BN 4.3 mm
SN 10 mm
SB 1.4 mm
r(min.) 1.1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 18.1 kN Basic Dynamic Load Rating
C0r 11.5 kN Basic Static Load Rating

Speeds The limiting speeds of the ball guided cage is lower than the outer ring guided cage.

Grease 17000 min-1 Limiting Speed
Oil (Oil-air) 20000 min-1 Limiting Speed

Dimensions

25° Contact Angle
a 25.7 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 62 mm Diameter of Shaft Abutment
Da(max.) 83 mm Diameter of Housing Abutment
Db(max.) 85 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.6 mm Radius of Shaft or Housing Fillet

Performance

Pa 14.1 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 49N 90N/μm 0μm
L 404N 186N/μm -10μm
M 836N 244N/μm -18μm

Additional information

1.6 g/brg Recommended Grease Quantities

Mass

0.393 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)
55BER10HTYNSUMP4Y 18.1 11.5 P4Y: Special class (Special bore and outside diameter tolerances, others are ISO Class 4.) 17000 20000 0.393

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CAD
More Information
NSK Product Type2 SP_ACBB_RS_BER
NSK Product Type Super Precision Bearing
Designations 55BER10H

© NSK Ltd.

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