| NSK | Faro | codent |
| Kavo | Futura | Elco - Austria |
| MK | Gamborini | SS White |
| Sirona | Impact-Air | Morita |
| W&H | KMD | Siemens |
| Bien Air | Adec | Star |
| Kavo | Kool Torque | Starflite |
| Bravo Bedetrice | Lares | TKD |
| Midwest | MTC | Torx |
| DME | MTI | W&H |
| Dabi-Atlante | Micro Mega | Yoshida |
| NO. |
Dental handpiece
Bearing type |
Inside Diameter | Outer Diameter | Inner ring width | Outer ring width | Step outside diameter | Step width | Flange outer diameter | Flange width | RPM |
| d | D | B | C | DK | CK | DF | CF | |||
| 1 | SR144Z | 3.175 | 6.35 | 2.38 | 2.38 | - | - | 450000/min | ||
| 2 | SR144ZK (step) | 3.175 | 6.35 | 2.38 | 2.38 | 5.98 | 0.98 | 450000/min | ||
| 3 | SR144ZW | 3.175 | 6.35 | 2.78 | 2.78 | - | - | 450000/min | ||
| 4 | SR144ZWK(step ) | 3.175 | 6.35 | 2.78 | 2.78 | 5.98 | 0.98 | 450000/min | ||
| 5 | SFR144Z | 3.175 | 6.35 | 2.38 | 2.38 | - | - | 7.518 | 0.787 | 450000/min |
| 6 | SFR144ZW | 3.175 | 6.35 | 2.78 | 2.78 | - | - | 7.518 | 0.787 | 450000/min |
| 7 | SR2-5Z | 3.175 | 7.938 | 3.571 | 3.571 | - | - | - | - | 320000/min |
| 8 | SFFR144Z | 3.175 | 6.35 | 2.78 | 2.78 | 7.518 | 0.787 | 450000/min | ||