Single row or matched pairs of angular contact ball bearings
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.
- 105 mm x 190 mm x 36 mm NTN 7221BL1G Single row or matched pairs of angular contact ball bearings
- 1310 kgf
- 91 mm to 103 mm
- 100,000 mm x 180,000 mm x 34,000 mm NTN 7220BG Single row or matched pairs of angular contact ball bearings
- 100,000 mm x 180,000 mm x 34,000 mm
- 100 mm x 180 mm x 34 mm NTN 7220B Single row or matched pairs of angular contact ball bearings
- Two Metal Shields
- Steel
- 100 mm x 180 mm x 34 mm SNR 7220.BG.M Single row or matched pairs of angular contact ball bearings
- Cast Iron
- Lubrication Fitting
- 95,000 mm x 170,000 mm x 32,000 mm NTN 7219BG Single row or matched pairs of angular contact ball bearings
- 5.2500 in
- Solid Flange Mount
- 95 mm x 170 mm x 32 mm NTN 7219B Single row or matched pairs of angular contact ball bearings
- 52100 Steel/Bla
- 1.5625 in