For deep groove ball bearings, pressed cages are usually used. for big NSK bearings, machined brass cages are used. Machined cages are also used for high speed applications.
NSK standard cages for deep groove ball bearings
| Series | Pressed Steel Cages | Machined Brass Cages |
|---|---|---|
| 68 | 6800 -- 6838 | 6840 -- 68/800 |
| 69 | 6900 -- 6936 | 6938 -- 69/800 |
| 160 | 16001 -- 16026 | 16028 -- 16064 |
| 60 | 6000 -- 6040 | 6044 -- 60/670 |
| 62 | 6200 -- 6240 | 6244 -- 6272 |
| 63 | 6300 -- 6332 | 6334 -- 6356 |
