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
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