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
90 mm x 160 mm x 30 mm NTN 7218BL1G Single row or matched pairs of angular contact ball bearings	0.02 KGS	Light	In Stock	90mm
90,000 mm x 160,000 mm x 30,000 mm NTN 7218BG Single row or matched pairs of angular contact ball bearings	1.4375 in	2801 lb	Standard Duty	Uncoated
90 mm x 160 mm x 30 mm NTN 7218B Single row or matched pairs of angular contact ball bearings	Polyacetal	80FN	7/8 in	Flanged Bushing
90 mm x 160 mm x 30 mm NTN 7218 Single row or matched pairs of angular contact ball bearings	SAEJ1120	52100 Bearing Steel	KMR7-8Z	0.4375 in
95 mm x 170 mm x 32 mm SNR 7219.BG.M Single row or matched pairs of angular contact ball bearings	Precision	Female Threaded	0.500 in	0.937 in
85 mm x 150 mm x 28 mm NTN 7217BL1G/GL Single row or matched pairs of angular contact ball bearings	0.1	15 mm	0.41	0.92
90 mm x 160 mm x 30 mm SNR 7218.BG.M Single row or matched pairs of angular contact ball bearings	Round	Normal Duty	Two-Bolt Base	249 mm to 272 mm
85 mm x 150 mm x 28 mm NTN 7217BL1G Single row or matched pairs of angular contact ball bearings	705714	Round	Uncoated	11789 lb
12 mm x 32 mm x 10 mm NTN 7201 Single row or matched pairs of angular contact ball bearings	75 mm	029176037269	37 mm	Pressed Steel
10,000 mm x 30,000 mm x 9,000 mm NTN 7200BG Single row or matched pairs of angular contact ball bearings	11 mm	Single-Row Non-Fill	2320 lb	11 mm
12 mm x 32 mm x 10 mm NTN 7201B Single row or matched pairs of angular contact ball bearings	2.22 in	211	Normal Duty	Non-Expansion Bearin
10 mm x 30 mm x 9 mm NTN 7200B Single row or matched pairs of angular contact ball bearings	Standard Precision	Uncoated	9.38 lbs	9.5938 in