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7218C

Standard Series High Precision Angular Contact Ball Bearings

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Parts Number
7218CTYNSULP3 Standard Series High Precision Angular Contact Ball Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Parts Number

7218CTYNSULP3

Boundary Dimensions

d	90	mm	Bore diameter
D	160	mm	Outside diameter
B	30	mm	Width
r(min.)	2	mm	Chamfer Dimension
r1(min.)	1	mm	Chamfer Dimension

Basic Load Ratings

C_r	155	kN	Basic Dynamic Load Rating
C_0r	105	kN	Basic Static Load Rating

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

Grease	9000	min^-1	Limiting Speed
Oil (Oil-air)	11000	min^-1	Limiting Speed

Dimensions

	C: 15°		Contact Angle
a	31.7	mm	Effective Load Center

Abutment and Fillet Dimensions

da(min.)	100	mm	Diameter of Shaft Abutment
Da(max.)	150	mm	Diameter of Housing Abutment
Db(max.)	154	mm	Diameter of Housing Abutment
ra(max.)	2	mm	Radius of Shaft or Housing Fillet
rb(max.)	1	mm	Radius of Shaft or Housing Fillet

Performance

Pa

72.0

kN

Permissible Axial Load

Calculation factors

f0

14.6

Factor

Preload,Rigidity(DB and DF arrangement)

	Preload	Axial Rigidity	Measured axial clearance
EL	384N	95N/μm	-15μm
L	771N	126N/μm	-29μm
M	1865N	187N/μm	-57μm
H	3713N	262N/μm	-90μm

Additional information

12

g/brg

Recommended Grease Quantities

Mass

2.20

kg

Mass(approx.)

Drawing for Reference

Designations	Basic Load Ratings		Axial Internal Clearance			Accuracy	Limiting Speeds		Mass
Designations	C_r	C_0r		min	max	Accuracy	Grease (min^-1)	Oil (Oil-air) (min^-1)	(kg)
7218CTYNSULP3	155	105				P3: Special class (ISO Class 4 dimensional tolerances and ISO Class 2 running accuracy.)	9000	11000	2.20

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CAD

Customer Questions

More Information

More Information
NSK Product Type2	SP_ACBB_ST_C
NSK Product Type	Super Precision Bearing
Designations	7218C

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