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
SNR 7216.BG.M Single row or matched pairs of angular contact ball bearings	75mm	23956cc/c3w33-skf	965	Steel
75 mm x 130 mm x 25 mm NTN 7215BL1G Single row or matched pairs of angular contact ball bearings	662461012314	Round	75 mm x 130 mm x 25 mm	-
75,000 mm x 130,000 mm x 25,000 mm NTN 7215BG Single row or matched pairs of angular contact ball bearings	49820 lb	3.0000 in	17620 lb	1.7500 in
75 mm x 130 mm x 25 mm NTN 7215B Single row or matched pairs of angular contact ball bearings	7550 RPM	7.3750 in	225 °F	300
75 mm x 130 mm x 25 mm SNR 7215.BA Single row or matched pairs of angular contact ball bearings	553000 lbf, 963000 l	4.1250 in	1060000 lbf	Cone & Cup
70 mm x 125 mm x 24 mm NTN 7214BL1G Single row or matched pairs of angular contact ball bearings	ANSI/ABMA STD 9	1480 lbf	Contact Seal	200
75 mm x 130 mm x 25 mm NTN 7215 Single row or matched pairs of angular contact ball bearings	11 lbs	Click here	0.5000 in	883450092104
75 mm x 130 mm x 25 mm SNR 7215.BG.M Single row or matched pairs of angular contact ball bearings	2670 lbf	1-7/16 in	Marathon®	Stainless Steel
70 mm x 125 mm x 24 mm NTN 7214BL1 Single row or matched pairs of angular contact ball bearings	70 mm x 125 mm x 24 mm	-	-	-
75 mm x 130 mm x 25 mm SNR 7215.BGA Single row or matched pairs of angular contact ball bearings	QVPL	Non-Expansion Bearin	3.0000 in	Spherical Roller
70,000 mm x 125,000 mm x 24,000 mm NTN 7214BG Single row or matched pairs of angular contact ball bearings	0.052 in	1-1/8 in	TW	11
70 mm x 125 mm x 24 mm SNR 7214.BA Single row or matched pairs of angular contact ball bearings	Open	249000 N	Outer Ring Guided	C0