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7230C

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7230CTRSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7230CTRSUHP3

Boundary Dimensions

d 150 mm Bore diameter
D 270 mm Outside diameter
B 45 mm Width
r(min.) 3 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 340 kN Basic Dynamic Load Rating
C0r 305 kN Basic Static Load Rating

Speeds

Grease 5500 min-1 Limiting Speed
Oil (Oil-air) 8400 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 50.6 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 164 mm Diameter of Shaft Abutment
Da(max.) 256 mm Diameter of Housing Abutment
Db(max.) 263 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 205 kN Permissible Axial Load

Calculation factors

f0 14.7 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 1093N 165N/μm -28μm
L 2203N 220N/μm -51μm
M 4952N 316N/μm -92μm
H 9979N 444N/μm -145μm

Additional information

49 g/brg Recommended Grease Quantities

Mass

11.0 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)
7230CTRSUHP3 340 305 P3: Special class (ISO Class 4 dimensional tolerances and ISO Class 2 running accuracy.) 5500 8400 11.0

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing
Designations 7230C

© NSK Ltd.

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