Single row or matched pairs of angular contact ball bearings

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Matched Pair Angular Contact Bearings, also called duplex bearings, are machined as matched sets. The pairs are furnished with the race faces ground to provide preload when installed. To accomplish this, a gap is provided between the inner races or outer race of the pair.

There are three types duplex bearing arrangements commonly used and they are Back to Back, Face to Face and Tandem bearing arrangement.

It is a type of duplex bearing arrangement where the two half are placed so that contact angle lines of the bearing converge inwardly. And these contact angle lines form ‘X’ shape, hence called as “X arrangement”.
In face to face arrangement a gap is provided between outer races and when installed, this gap is closed and producing a preload on the bearings. DF arrangement has lower moment stiffness, so they must be spaced sufficiently to provide resistance to moment load.
They can carry heavy radial loads, combined radial and thrust loads, reversing thrust load.

Bearing Number	Bore Dia	Outer DIa	Width	Size
80 mm x 125 mm x 22 mm NTN 7016 Single row or matched pairs of angular contact ball bearings	Open	Set Screw	Click here	4400 kgf
40 mm x 68 mm x 15 mm NTN 7008 Single row or matched pairs of angular contact ball bearings	Oil-Impregnated Bron	None	1-1/2 in	SAE 841, CT-1000-K26
35 mm x 62 mm x 14 mm NTN 7007 Single row or matched pairs of angular contact ball bearings	Plain Sleeve	1 in	SAE 841, CT-1000-K26	Static 8000 / D
30 mm x 55 mm x 13 mm NTN 7006 Single row or matched pairs of angular contact ball bearings	Machined Bearing wit	1.2500 in	One	Not Rated
25 mm x 47 mm x 12 mm NTN 7005 Single row or matched pairs of angular contact ball bearings	3.9375 in	Standard Duty	5.6563 in	30 to 180°F
20 mm x 42 mm x 12 mm NTN 7004 Single row or matched pairs of angular contact ball bearings	Chrome Steel	Sealed	1.7500 in	1.0000 in
17 mm x 35 mm x 10 mm NTN 7003 Single row or matched pairs of angular contact ball bearings	Uncoated	Case Carburized Stee	0.03 in	0.7656 in
12 mm x 28 mm x 8 mm NTN 7001 Single row or matched pairs of angular contact ball bearings	8 lbs	Triple-lip contactin	Non-Expansion Bearin	Double Concentric Co
15 mm x 32 mm x 9 mm NTN 7002 Single row or matched pairs of angular contact ball bearings	200	14 mm	Not for Ball Screws	1 mm
10 mm x 26 mm x 8 mm NTN 7000 Single row or matched pairs of angular contact ball bearings	10 mm x 26 mm x 8 mm	-	-	-
30 mm x 62 mm x 16 mm NTN 7206B Single row or matched pairs of angular contact ball bearings	Steel	Open Type	17mm	In Stock
30 mm x 62 mm x 16 mm NTN 7206 Single row or matched pairs of angular contact ball bearings	Steel	0.02 KGS	1000	22232cck/w33-skf