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
150 mm x 320 mm x 65 mm NTN 7330B Single row or matched pairs of angular contact ball bearings	275 mm	16 mm	30 mm	3 x M 6
150,000 mm x 320,000 mm x 65,000 mm NTN 7330BG Single row or matched pairs of angular contact ball bearings	150,000 mm x 320,000 mm x 65,000 mm	-	-	-
140 mm x 300 mm x 62 mm NTN 7328BG/GL Single row or matched pairs of angular contact ball bearings	1.0000 in	Lubrication Fitting	Four-Bolt Flange	Standard Duty
140,000 mm x 300,000 mm x 62,000 mm NTN 7328BG Single row or matched pairs of angular contact ball bearings	ljt3.3/4-r&m	1.125 Inch	In Stock	Open Type
140 mm x 300 mm x 62 mm NTN 7328B Single row or matched pairs of angular contact ball bearings	204 mm	32	K2	Tapered Roller Cup S
150,000 mm x 320,000 mm x 65,000 mm SNR 7330BGM Single row or matched pairs of angular contact ball bearings	Round	30 °	1 mm	C0
130,000 mm x 280,000 mm x 58,000 mm NTN 7326BG Single row or matched pairs of angular contact ball bearings	Lead Free	Dry 1.65, Periodic L	40 mm	50 mm
130 mm x 280 mm x 58 mm NTN 7326B Single row or matched pairs of angular contact ball bearings	Spherical Roller	1700 RPM	5-5/16 in	91900 lb
120 mm x 260 mm x 55 mm NTN 7324BG/GL Single row or matched pairs of angular contact ball bearings	3/4	Round	Click here	6.5313 in
120,000 mm x 260,000 mm x 55,000 mm NTN 7324BG Single row or matched pairs of angular contact ball bearings	1.2500 in	2000 RPM	12800 lbf	Crowned
130,000 mm x 280,000 mm x 58,000 mm SNR 7326BGM Single row or matched pairs of angular contact ball bearings	Thrust Washer	15/16 in	0.92 in	1/2 in
120 mm x 260 mm x 55 mm NTN 7324B Single row or matched pairs of angular contact ball bearings	4.6250 in	1/2-13	UCTB200TCMZ2	1.9375 in