Gearbox> Helical Gearbox

4.Service Factor
4-1) Load Classification and Service Factor (Sf1)

1.Features of KIP Gear Reducer
2.Designation and Reduction Ratio
2-1)
Designation and Symbols
2-2) Reduction Ratio
3.Selection
3-1)
How to select proper gear reducer
4. Service Factor
4-1) Load Classification and Service Factor (Sf)
4-2) Service factor for selection
5. Installation and operation
5-1) General
5-2) Installation
5-3) Operation
6. Maintenance 
7. Power Rating, Thermal Capacity and Dimension
7-1.Nominal Power Rating
1 stage  gearbox
2 stage  gearbox
3 stage  gearbox
4 stage  gearbox
7-2.Thermal Capacity
1 stage  gearbox
2 stage  gearbox
3 stage  gearbox
4 stage  gearbox
7-3.Dimensions
1 stage  gearbox
2 stage  gearbox
3 stage  gearbox
4 stage  gearbox
8.
Convenient technical formulas

Table 1

Driven machine

Effective daily operating period under load in hours

Driven machine

Effective daily operating period under load in hours

¡Â0.5

>0.5~10

>10

¡Â0.5

>0.5~10

>10

Waste water treatment




Conveyors

 


 

Thickeners   (central drive)

-

-

1.2

Bucket conveyor

-

1.2

1.5

Filter presses

1.0

1.3

1.5

Hauling winches

1.4

1.6

1.6

Flocculation apparata

0.8

1.0

1.3

Hoists

-

1.5

1.8

Aeraors

-

1.8

2.0

Belt conveyors
    ¡Â150kW

1.0

1.2

1.3

Racking equipment

1.0

1.2

1.3

Belt conveyors
    ¡Ã150kW 

1.1

1.3

1.4

Combined  longitudinal
  and rotary racks

1.0

1.3

1.5

Good lift *

-

1.2

1.5

Pre-thickeners

-

1.1

1.3

Passenger lifts*

-

1.5

1.8

Screw pumps

-

1.3

1.5

Apron conveyors

-

1.2

1.5

Water turbines

-

-

2.0

Escalators

-

1.2

1.4

centrifugal pumps

1.0

1.2

1.3

Rail traveling gears

-

1.5

-

positive-

  displacement   pumps 

1 piston

1.3

1.4

1.8

Frequency converters

-

1.8

2.0

> 1 piston

1.2

1.4

1.5

Reciprocating compressors

-

1.8

1.9

Dredgers

 

 

 

Cranes**

 

 

 

Bucket conveyors

-

1.6

1.6

Slewing gears*

1.0

1.4

1.8

Dumping devices

-

1.3

1.5

Luffing gear

1.0

1.1

1.4

Caterpillar travelling gears

1.2

1.3

1.8

Traveling gears

1.1

1.6

2.0

Bucket wheel excavators

 

 

 

Hoisting gear

1.0

1.1

1.4

    as pick- up

 

1.7

1.7

Derricking gears

1.0

1.2

1.6

    for primitive material

-

2.2

2.2

Cooling towers

 

 

 

Cutter head

 

 

 

Cooling tower fans

-

-

2.0

Traversing gears

-

1.4

1.8

Blowers(axial and radial)

-

1.4

1.5

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