Related Resources: belt design
Service Factors Synchronous Timing Belts
Belt Drive Design and Engineering
Mechanical Gear Design and Engineering
Service Factors for Synchronous Timing Belts per. ANSI RMA IP-24, ISO 5299 and IS 9804.
Service factor is a multiplier or measure of intermitant overload capacity applied to motor, belt, or other machinery.
Related:
- Synchronous Timing Belt Tooth Section Dimensions Table per ANSI / RMA IP-24
- Synchronous Timing Belt Pulley Dimensions Table per ANSI / RMA IP-24
- Synchronous Timing Belt Lengths and Tolerances per. ANSI RMA IP-24 Table
Service Factors for Synchronous Timing Belts
Types of Driving Units |
AC Motors: Normal Torque, Squirrel Cage, Synchronous and Split Phase. DC Motors: Shunt Wound. Engines: Multiple Cylinder Internal Combustion. |
||
Types of Driven Machines |
Intermittent Service
(3-5 hours daily or seasonal) |
Normal Service
(8-10 hours daily) |
Continuous Service
(1624 hours daily) |
Display, Dispensing, Projection, Medical equipment; Instrumentation; Measuring devices |
1.0
|
1.2
|
1.4
|
Appliances, sweepers, sewing machines; Office equipment; Wood lathes, band saws |
1.2
|
1.4
|
1.6
|
Conveyors: belt, light package, oven, screens, drums, conical |
1.3
|
1.5
|
1.7
|
Agitators for liquids; Dough mixers; Drill presses, lathes; Screw machines, jointers; Circular saws, planes; Laundry, Paper, Printing machinery |
1.4
|
1.6
|
1.8
|
Agitators for semiliquids; Brick machinery (except pug mills); Conveyor belt: ore, coal, sand; Line shafts; Machine tools: grinder, shaper, boring mill, milling machines; Pumps: centrifugal, gear, rotary |
1.5
|
1.7
|
1.9
|
Conveyor: apron, pan, bucket, elevator; Extractors, washers; Fans, blowers; centrifugal, induced draft exhausters; Generators & exciters; Hoists, elevators; Rubber calenders, mills, extruders; Saw mill, Textile machinery inc. looms, spinning frames, twisters |
1.6
|
1.8
|
2.0
|
Centrifuges; Conveyors: flight, screw; Hammer mills; Paper pulpers |
1.7
|
1.9
|
2.1
|
Brick & clay pug mills; Fans, blowers, propeller mine fans, positive blowers |
1.8
|
2.0
|
2.2
|
Driving Units | AC Motors: High Torque, High Slip, Repulsion-Induction, Single Phase Series Wound and Slip Ring. DC Motors: Series Wound and Compound Wound. Engines: Single Cylinder Internal Combustion. Line Shafts. Clutches. |
||
Types of Driven Machines |
Intermittent Service
(3-5 hours daily or seasonal) |
Normal Service
(8-10 hours daily) |
Continuous Service
(1624 hours daily) |
Display, Dispensing, Projection, Medical equipment; Instrumentation; Measuring devices |
1.2
|
1.4
|
1.6
|
Appliances, sweepers, sewing machines; Office equipment; Wood lathes, band saws |
1.4
|
1.6
|
1.8
|
Conveyors: belt, light package, oven, screens, drums, conical |
1.5
|
1.7
|
1.9
|
Agitators for liquids; Dough mixers; Drill presses, lathes; Screw machines, jointers; Circular saws, planes; Laundry, Paper, Printing machinery |
1.6
|
1.8
|
2.0
|
Agitators for semiliquids; Brick machinery (except pug mills); Conveyor belt: ore, coal, sand; Line shafts; Machine tools: grinder, shaper, boring mill, milling machines; Pumps: centrifugal, gear, rotary |
1.7
|
1.9
|
2.1
|
Conveyor: apron, pan, bucket, elevator; Extractors, washers; Fans, blowers; centrifugal, induced draft exhausters; Generators & exciters; Hoists, elevators; Rubber calenders, mills, extruders; Saw mill, Textile machinery inc. looms, spinning frames, twisters |
1.8
|
2.0
|
2.2
|
Centrifuges; Conveyors: flight, screw; Hammer mills; Paper pulpers |
1.9
|
2.1
|
2.3
|
Brick & clay pug mills; Fans, blowers, propeller mine fans, positive blowers |
2.0
|
2.2
|
2.4
|
References:
ANSI / RMA IP-24
ISO 5299
IS 9804
Machinerys Handbook, 27th Edition