7909C

Standard Series High Precision Angular Contact Ball Bearings

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Parts Number
7909CTRV1VSUHP4 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

7909CTRV1VSUHP4

Boundary Dimensions

d	45	mm	Bore diameter
D	68	mm	Outside diameter
B	12	mm	Width
r(min.)	0.6	mm	Chamfer Dimension
r1(min.)	0.3	mm	Chamfer Dimension

Basic Load Ratings

C_r	20.2	kN	Basic Dynamic Load Rating
C_0r	13.4	kN	Basic Static Load Rating

Speeds

Grease	20400	min^-1	Limiting Speed
Oil (Oil-air)	31000	min^-1	Limiting Speed

Dimensions

	C: 15°		Contact Angle
a	13.6	mm	Effective Load Center

Abutment and Fillet Dimensions

da(min.)	50	mm	Diameter of Shaft Abutment
Da(max.)	63	mm	Diameter of Housing Abutment
Db(max.)	65.5	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

8.55

Permissible Axial Load

Calculation factors

16.0

Factor

Preload,Rigidity(DB and DF arrangement)

	Preload	Axial Rigidity	Measured axial clearance
EL	49N	37N/μm	0μm
L	104N	51N/μm	-5μm
M	192N	66N/μm	-11μm
H	391N	93N/μm	-21μm

Additional information

0.77

g/brg

Recommended Grease Quantities

Mass

0.129

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)
7909CTRV1VSUHP4	20.2	13.4				P4: ISO Class 4	20400	31000	0.129

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CAD

FAQs

Customer Questions

More Information

More Information
NSK Product Type2	SP_ACBB_ST_C
NSK Product Type	Super Precision Bearing
Designations	7909C