| Balance quality grade G |
ew 1] 2]
mm/s |
ROTOR TYPES - GENERAL EXAMPLES |
| G40 |
40 |
- Car wheels, wheel rims, wheel sets, drive shafts.
- Crankshaft-drives of elastically mounted fast 4-cycle engines
(gasoline or diesel) with six or more cylinders).
- Crankshaft-drives for engines of cars, trucks and locomotives. |
| G16 |
16 |
- Drive Shafts (propeller shafts, cardanshafts with special req
- Parts of crushing machinery.
- Parts of agricultural machinery.
- Individual components of engines (gasoline or diesel) for cars, trucks
and locomotives.
- Crankshaft-drives of engines with six or more cylinders under special requirements. |
| G 6, 3 |
6,3 |
- Parts or process plant machines.
- Marine main turbine gears (merchant service).
- Centrifugal drums.
- Fans
- Assembled aircraft gas turbine rotors.
- Fly wheels.
- Pump impellers.
- Machine-tool and general machinery parts.
- Normal electrical armatures.
- Individual components of engines under special req. |
| G 2,5 |
2,5 |
- Gas and steam turbines, including marine turbines (merchant service).
- Rigid turbo-generator rotors.
- Rotors.
- Turbo-compressors.
- Machine-tool drives.
- Medium and large electrical armatures with special req.
- Small electrical armatures.
- Turbine-driven pumps. |
| G1 |
1 |
- Tape recorder and phonographs (gramophone) drives.
- Grinding-machine drives.
- Small electrical armatures with special requirements |
| G 0,4 |
0,4 |
- Spindles, disks and armatures of precision grinders.
- Gyroscopes. |
1] w=2xn / 60-N / 0, if n is measured in revolutions per minute and w in radians per second.
Tolerance = Component Weight [kg] x Quality Grade x 9549 / Operational Speed [RPM]
2] In general, for rigid rotors with two correction planes, one-half of the recommended residual unbalance is to be taken for each plane. |
