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
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter NSK 7007CTRV1VDULP4Y Precision Ball Bearings	Taper Roller	Black Oxide	Felt Seal	RCI
1.575 Inch \| 40 Millimeter x 2.677 Inch \| 68 Millimeter x 1.181 Inch \| 30 Millimeter NSK 7008A5TRDUHP4Y Precision Ball Bearings	R	133959	9 in	1.575 Inch \| 40 Millimeter x 2.677 Inch \| 68 Millimeter x 1.181 Inch \| 30 Millimeter
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter NSK 7007A5TRDULP4Y Precision Ball Bearings	Labyrinth	0.6250 in	9.9120 in	ISO-GARD® Flange
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter NSK 7007A5TRDUHP4Y Precision Ball Bearings	229.4 mm	36	Tapered Roller Cup S	K2
1.181 Inch \| 30 Millimeter x 2.165 Inch \| 55 Millimeter x 1.024 Inch \| 26 Millimeter NSK 7006CTRV1VDULP4Y Precision Ball Bearings	Round	Cast Iron	Four-Bolt Square	737739
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 1.969 Inch \| 50 Millimeter NSK 7215CTRDUMP4Y Precision Ball Bearings	Needle Rollers	1000 RPM	5.0000 in	2-12
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 1.969 Inch \| 50 Millimeter NSK 7215CTRDULP4Y Precision Ball Bearings	Double Shielded	ABEC 1 (ISO Cla	7300 RPM	60
3.15 Inch \| 80 Millimeter x 5.512 Inch \| 140 Millimeter x 2.047 Inch \| 52 Millimeter NSK 7216A5TRDULP4Y Precision Ball Bearings	110mm	29.75mm	Standard	60mm
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 1.969 Inch \| 50 Millimeter NSK 7215CTRDUHP4Y Precision Ball Bearings	3/8 in	Oilite®, Synthet	1/4 in	Plain Sleeve
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 1.969 Inch \| 50 Millimeter NSK 7215A5TRDUMP4Y Precision Ball Bearings	USFC 5000	Four-Bolt Piloted Fl	737844	Expansion Bearing &#
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 1.969 Inch \| 50 Millimeter NSK 7215A5TRDULP4Y Precision Ball Bearings	Non-Expansion Bearin	1-25/64 in	1780 lbf	UEF200NP
2.756 Inch \| 70 Millimeter x 4.921 Inch \| 125 Millimeter x 1.89 Inch \| 48 Millimeter NSK 7214CTRDUMP4Y Precision Ball Bearings	Solid Pillow Block	Heavy Duty	Labyrnith non-contac	QMPF