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7048C

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7048CSUMP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7048CSUMP4

Boundary Dimensions

d 240 mm Bore diameter
D 360 mm Outside diameter
B 56 mm Width
r(min.) 3 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 330 kN Basic Dynamic Load Rating
C0r 475 kN Basic Static Load Rating

Speeds

Grease 3500 min-1 Limiting Speed
Oil (Oil-air) 5500 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 68.2 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 254 mm Diameter of Shaft Abutment
Da(max.) 346 mm Diameter of Housing Abutment
Db(max.) 353 mm Diameter of Housing Abutment
ra(max.) 2.5 mm Radius of Shaft or Housing Fillet
rb(max.) 1 mm Radius of Shaft or Housing Fillet

Performance

Pa 292 kN Permissible Axial Load

Calculation factors

f0 15.9 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 1699N 244N/μm -33μm
L 3337N 324N/μm -56μm
M 7134N 455N/μm -95μm
H 14212N 636N/μm -147μm

Additional information

96 g/brg Recommended Grease Quantities

Mass

19 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing
Designations 7048C

© NSK Ltd.

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