ISO Standards

ISO1940, TSE 2576

Balance Quality Grade G

ew 1) 2) mm/s

Rotary Mass Examples

G 4000

400

Slow rotating marine engine crank shaft assembly 

G1600

1600

Tightly mounted crank shaft in large single stroke engines

G630

630

Tightly mounted crank shaft assembly in large 4 stroke engines . Crankshaft assembly of floating mounted marine diesel engines. 

G250

250

Firmly mounted crankshaft assembly of high rpm 4 stroke diesel engines. 

G100

100

High rpm, 6 or more cylinder diesel engine crank shaft assembly. All gas or diesel,  automobile, truck or train engines

G 40

40

Road wheels of cars, rims, wheel assemblies, floating mounted rotating shafts, fast 4 stroke diesel or gas engines, crankshaft assemblies of engines with 4 or more cylinders o trucks, railway engines 

G 16

16

Rotating shaft for special purposes (tail shaft, cardan-drive shaft), parts for grinding equipment. Agriculture machinery parts. Several parts of cars, trucks or railway engines' (diesel or gas) parts. Crankshafts with 6 or more cylinders for special purposes. 

G 6.3

6,3

Machinery parts for manufacturing facilities. Turbine gears for heavy transport ships. Centrifugal rotors, fans, mounted jet engine gas turbines, flywheel, pump rotors. Workbench and general machinery parts. Usual electrical armatures. Engine parts manufactured for special purposes.

G 2,5

2,5

Gas or water vapour turbines including main turbines for large transport ships. Rigid turbo rotors. Rotors, turbo compressors. workbenche drive parts.  Mid range or large electrical armatures for special purposes. Small electrical appliances. Turbine driven pumps. 

G 100

100

Crank shaft assembly for fast diesel engines with 6 or more cylinders.  All diesel or gas engines for cars, trucks or railway engines. 

G 1

1

Cassette player, record player rotating units. Grinding benchs rotating units. Small electrical appliances for special purposes. 

G 0,4

0,4

Mandrels (spindles), discs, assembly bench armatures, gyroscopes