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7910A5SN24

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7910A5SN24TRSUELP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7910A5SN24TRSUELP4

Boundary Dimensions

d 50 mm Bore diameter
D 72 mm Outside diameter
B 12 mm Width
r(min.) 0.6 mm Chamfer Dimension
r1(min.) 0.3 mm Chamfer Dimension

Basic Load Ratings

Cr 20.0 kN Basic Dynamic Load Rating
C0r 13.5 kN Basic Static Load Rating

Speeds

Grease 21400 min-1 Limiting Speed
Oil (Oil-air) 32000 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 20.2 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 55 mm Diameter of Shaft Abutment
Da(max.) 67 mm Diameter of Housing Abutment
Db(max.) 69.5 mm Diameter of Housing Abutment
ra(max.) 0.6 mm Radius of Shaft or Housing Fillet
rb(max.) 0.3 mm Radius of Shaft or Housing Fillet

Performance

Pa 13.1 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 74N 107N/μm -1μm
L 168N 143N/μm -4μm
M 430N 204N/μm -10μm
H 911N 276N/μm -18μm

Additional information

0.84 g/brg Recommended Grease Quantities

Mass

0.116 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)
7910A5SN24TRSUELP4 20.0 13.5 P4: ISO Class 4 21400 32000 0.116

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7910A5SN24

© NSK Ltd.

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