Precision Ball Bearings

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Precision Ball Bearings are specifically designed with accuracy in mind for high-speed and precision applications. They are capable of high rotational speeds with low friction and noise.

Types of Precision Bearings

There are two different categories of high precision bearings:

Angular Contact Bearings: Optimized for very fast operation speeds, can hold heavy loads in the radial & axial direction. Must be purchased in sets & can only support axial loads in one direction.
Radial Ball Bearings: When axial force in both directions is needed and speed isn’t the most important factor for your application, then radial ball bearings are usually selected. These high precision bearings usually don’t need to be purchased in sets for preload.

Machine Parts That Use High Precision Bearings

Spindles
Metal cutting & woodworking spindles
Grinders
Vacuum pumps
Semiconductor components
High-speed rolling mills
Printers
Race cars
Turbochargers
And more

Bearing Number	Bore Dia	Outer DIa	Width	Size
0.984 Inch \| 25 Millimeter x 2.047 Inch \| 52 Millimeter x 1.181 Inch \| 30 Millimeter NACHI 7205CYDUP4 Precision Ball Bearings	Labyrinth	2.1250 in	4500 fpm	3926904590.US
0.669 Inch \| 17 Millimeter x 1.575 Inch \| 40 Millimeter x 0.945 Inch \| 24 Millimeter NACHI 7203CYDUP4 Precision Ball Bearings	2108 lb	VS-108	0.3750 in	2.1250 in
0.787 Inch \| 20 Millimeter x 1.85 Inch \| 47 Millimeter x 1.102 Inch \| 28 Millimeter NACHI 7204CYDUP4 Precision Ball Bearings	No Hole	6.1875 in	Uncoated	Class 2
0.472 Inch \| 12 Millimeter x 1.102 Inch \| 28 Millimeter x 0.63 Inch \| 16 Millimeter NACHI 7001CYDUP4 Precision Ball Bearings	285 kN	222.25 mm	LOR 170	236 kN
0.472 Inch \| 12 Millimeter x 1.26 Inch \| 32 Millimeter x 0.787 Inch \| 20 Millimeter NACHI 7201CYDUP4 Precision Ball Bearings	Phenolic Resin	ABEC 7 (ISO Cla	70	27.5 kN
0.591 Inch \| 15 Millimeter x 1.378 Inch \| 35 Millimeter x 0.866 Inch \| 22 Millimeter NACHI 7202CYDUP4 Precision Ball Bearings	Tapped Base	3/8 in	Lubrication Fitting	Nolu-Clean
0.787 Inch \| 20 Millimeter x 1.85 Inch \| 47 Millimeter x 0.591 Inch \| 15 Millimeter NACHI 20TAB04UP4 Precision Ball Bearings	340	360	0.02 KGS	22313ek/c3-skf
0.669 Inch \| 17 Millimeter x 1.85 Inch \| 47 Millimeter x 0.591 Inch \| 15 Millimeter NACHI 17TAB04UP4 Precision Ball Bearings	Spherical Roller	USFB 5000	5.0000 in	737163
0.669 Inch \| 17 Millimeter x 1.85 Inch \| 47 Millimeter x 1.181 Inch \| 30 Millimeter NACHI 17TAB04DUP4 Precision Ball Bearings	0.6250 in	Single Cup	Steel	0.35 lbs
0.591 Inch \| 15 Millimeter x 1.85 Inch \| 47 Millimeter x 0.591 Inch \| 15 Millimeter NACHI 15TAB04UP4 Precision Ball Bearings	1.6300 in	UL, AFBMA, AGMA, ASM	205	Uncoated
0.591 Inch \| 15 Millimeter x 1.85 Inch \| 47 Millimeter x 1.181 Inch \| 30 Millimeter NACHI 15TAB04DUP4 Precision Ball Bearings	Single-Row Non-Fill	39000 lb	26000 lb	C0
3.346 Inch \| 85 Millimeter x 5.118 Inch \| 130 Millimeter x 0.866 Inch \| 22 Millimeter NACHI BNH017TU/GLP4 Precision Ball Bearings	Solid Pillow Block	3.8700 in	Cast Steel	1.3800 in