According to Agma 514.02

Load classification U=Uniform
M=Medium
H=High
Driving machines : Electric mover 
Gas turbine
Stream turbine
Water turbine Piston engines
4 – 12 cylinders
Piston engines
1 – 3 cylinders
 
U=1,5 U=2 U=2,5 U=3
M=2 M=2,5 M=3 M=3,8
H=3 H=3,5 H=4,5 H=5,5
Driven machines:
Special industries applications:
 
Foods Paper Chemical Packing
U=Centrifugal pumps M=Calenders U=Agitators H=Wrappings
M=Cane crushers H=Wet presses U=Light centrifuges H=Formings
M=Bottling filling machines H=Pulpers M=Semi liquid agitators M=Buildings
H=Drying cylinders M=Heavy centrifuges M=Conveying systems
M=Kneading machines     H=Rollers
H=Palletizers
Building Rubber Metal rolling mills Machines tools
M=Hoists M=Calenders M=Live mill table U=Auxiliary drivers
M=Concrete mixers H=Extruders M=Cooling beds M=Main drivers
M=Road construction machiner. H=Mixers H=Cold rolling mills  
H=Crushers H=Plate cutters
  H=Billet shears
Wood Metal work Mining Mills
U=Wood work machines U=Auxiliary drivers M=Main pumps H=Stamping mills
M=Planing machines M=Shears M=Travelling gear (Rails) H=Dryers
H=Frames M=Main drives H=Bucket wheels H=Grinding mills
H=Barkers H=Presses H=Travelling gear H=Kilns
  H=Hanners M=Manouvering
M=Hanners H=Power showels
Driven machines:
Special industries applications:
Plastic Oil industry Textile Laundries Filters
M=Calanders M=Pipeline pumps M=Batchers H=Tumblers U=Aerators
M=Crushers H=Rotary drilling M=Willows H=Washing machines M=Rotary filters
M=Mixers   M=Looms
  M=Tranning vats printing
General applications :
 
Compressors Cranes Pumps Conveyors Fans
U=Axial centrifugal M=Hoist gears U=Centrifugal pumps M=Apron drag conveyors M=Centrifugals
M=Turbo compressors U=Travelling gears H=Piston pumps H=Wind machines
M=slewing gears H=Pressure pumps M=Hoists  
H=Piston compressors M=Centrifugal pumps semi-liquids H=Belt conveyors
H=Inclined hoists
  H=Extractions plants