12BSR19S

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings

12BSR19S

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings

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Cage

Axial Internal Clearance

Accuracy

Seal

Lubrication Holes

Grouped product items
Parts Number
12BSR19STASULP4Y
12BSR19STAV1VSULP4Y
12BSR19STASUELP3
12BSR19STASUELP4
12BSR19STASUELP4Y
12BSR19STASUHP3
12BSR19STASUHP4
12BSR19STASUHP4Y
12BSR19STASULP3
12BSR19STASULP4
12BSR19STASUMP3
12BSR19STASUMP4
12BSR19STASUMP4Y
12BSR19STAV1VSUELP3
12BSR19STAV1VSUELP4
12BSR19STAV1VSUELP4Y
12BSR19STAV1VSUHP3
12BSR19STAV1VSUHP4
12BSR19STAV1VSUHP4Y
12BSR19STAV1VSULP3
12BSR19STAV1VSULP4
12BSR19STAV1VSUMP3
12BSR19STAV1VSUMP4
12BSR19STAV1VSUMP4Y

Product Information

Designations

12BSR19S

Boundary Dimensions

	BSR: 15°		Bearing Type
d	12	mm	Bore diameter
D	24	mm	Outside diameter
B	6	mm	Width
r(min.)	0.3	mm	Chamfer Dimension
r1(min.)	0.15	mm	Chamfer Dimension

Basic Load Ratings

Cr	2.46	kN	Basic Dynamic Load Rating
C0r	0.850	kN	Basic Static Load Rating

Speeds

Grease	88900	min-1	Limiting Speed
Oil (Oil-air)	123000	min-1	Limiting Speed

Dimensions

	15°		Contact Angle
a	5.40	mm	Effective Load Center

Abutment and Fillet Dimensions

da(min.)	14.5	mm	Diameter of Shaft Abutment
Da(max.)	21.5	mm	Diameter of Housing Abutment
Db(max.)	22.8	mm	Diameter of Housing Abutment
ra(max.)	0.3	mm	Radius of Shaft or Housing Fillet
rb(max.)	0.15	mm	Radius of Shaft or Housing Fillet

Performance

1.02

Permissible Axial Load

Calculation factors

7.70

Factor

Preload,Rigidity(DB and DF arrangement)

	Preload	Axial Rigidity	Measured axial clearance
EL	4.7N	9.0N/μm	6μm
L	13N	13N/μm	3μm
M	25N	17N/μm	0μm

Additional information

0.06

g/brg

Recommended Grease Quantities

Mass

0.012

Mass(approx.)

CAD

FAQs

Customer Questions

More Information

More Information
NSK Product Type2	SP_ACBB_RS_BSR
NSK Product Type	Super Precision Bearing

Cage	Code	Material	Guiding	Features	Limiting Speed(dmn value)	Available for
	TYN TYNX	Polyamide resin	Ball guided	Excellent wear and noise characteristics, especially effective with grease lubrication.	Oil: ～1.4 million Grease: ～1.2 million	・Standard Series ・NSKROBUST Series (not available for 19 Series sealed type)
	TR T TX TA	Phenolic resin	Outer ring guided	Stable cage rotation in high-speed operation.	2.8 million	TR: Standard Series, ROBUSTDYNA T: BASIC Series, MINI Series TX: BASIC Series(With 19 Series sealed type) TA: MINI Series(sealed type)
	TSR	PPS resin	Outer ring guided	Reduction of non-repeatable run-out (NRRO). Low temperature rise in ultra high-speed operation due to unique design with enhanced oil drain.	3.0 million	・NSKROBUST Series
	MY	Brass	Ball guided	Excellent noise and temperature rise characteristics. Extended grease life.	Oil: ～0.8 million Grease ～0.7 million	・Standard Series ・NSKROBUST Series only for large bearings that are not equipped with TYN cages.

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings

ROBUST Series Ultra High-Speed Angular Contact Ball Bearings

Designations

Boundary Dimensions

Basic Load Ratings

Speeds

Dimensions

Abutment and Fillet Dimensions

Performance

Calculation factors

Preload,Rigidity(DB and DF arrangement)

Additional information

Mass

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