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
110 mm x 240 mm x 50 mm NTN 7322BL1G Single row or matched pairs of angular contact ball bearings	SAE 841, CT-1000-K26	2-3/4 in	50000	Oil-Impregnated Bron
110 mm x 240 mm x 50 mm NTN 7322BL1BG Single row or matched pairs of angular contact ball bearings	3.2500 in	0.0800 in	Chrome Steel	5454000000
120 mm x 260 mm x 55 mm SNR 7324.BG.M Single row or matched pairs of angular contact ball bearings	86.5	12000	In Stock	85
110,000 mm x 240,000 mm x 50,000 mm NTN 7322BG Single row or matched pairs of angular contact ball bearings	36.9 mm	Cast Iron	UG205	Four-Bolt Piloted
105 mm x 225 mm x 49 mm NTN 7321BL1G Single row or matched pairs of angular contact ball bearings	98 mm	52 kN	0.107	55 mm
110 mm x 240 mm x 50 mm NTN 7322B Single row or matched pairs of angular contact ball bearings	135000 lbf	98.424 mm	Chrome Steel	3.9060 in
105 mm x 225 mm x 49 mm SNR 7321.BG.M Single row or matched pairs of angular contact ball bearings	20.638 mm	M38500	Class 2	Uncoated
105,000 mm x 225,000 mm x 49,000 mm NTN 7321BG Single row or matched pairs of angular contact ball bearings	0.03125 in	2.0625 in	Chrome Steel	Lubrication Groove &
110 mm x 240 mm x 50 mm SNR 7322.BG.M Single row or matched pairs of angular contact ball bearings	24 mm	Hex	Uncoated	One land riding Nitr
105 mm x 225 mm x 49 mm NTN 7321B Single row or matched pairs of angular contact ball bearings	35 mm	80 mm	30 mm	Needle Rollers
100 mm x 215 mm x 47 mm NTN 7320BL1G/GL Single row or matched pairs of angular contact ball bearings	6860 RPM	6.8125 in	1-15/16 in	1.1875 in
100 mm x 215 mm x 47 mm NTN 7320BL1G Single row or matched pairs of angular contact ball bearings	Spherical Roller	883450315791	2.9375 in	Bearing Rebuild Kit