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Training Module

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... compound and precision molded cogs increase flexibility and supports cords ... Carlisle Gold Ribbon Cog Belts maintain 95% efficiency ... – PowerPoint PPT presentation

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Title: Training Module


1
Training Module Belt Basics
2
Means of Power Transmission
  • V-Belts
  • Chains
  • Gears
  • Timing Belts

3
V-Belt Basics
  • V-Belts have been around since the early 20th
    century

4
V-Belts
  • The function of a belt is to transfer rotation
    from the powered pulley to one or more driven
    pulleys
  • The belt must be designed and manufactured to
    transfer this power efficiently and reliably

5
Types of Belts
  • Classical V-Belts
  • Fractional Horse-Power V-Belts
  • Narrow (Wedge) V-Belts
  • Double Angle (Hexagonal) V-Belts
  • Joined (Banded) Belts
  • V-Ribbed Belts
  • Variable Speed Belts
  • Synchronous (Timing) Belts

6
Two Major Belt Categories
  • V-Belt - works on the principle of the wedge and
    relies on tension to create friction on the
    sidewall of the sheave to transmit power
  • Synchronous or timing belt - relies on accurate
    and smooth meshing of the teeth on the belt with
    the grooves of the sprocket

7
Two Major Types of V-Belts
  • Wrapped Molded which has a fabric cover and is
    molded into a V-shape
  • Raw Edge which is cured and then cut into a
    V-shape

8
V-Belt Characteristics
  • Less expensive than other forms of power
    transmission
  • Start, stop and run smoothly
  • Operate noiselessly and without lubrication
  • Absorb objectionable and harmful vibrations
  • Clean and requires minimum maintenance
  • Rugged and long lasting
  • Provide a wide selection of speed ranges
  • Cover an extremely wide horsepower range
  • Easy to install and to replace
  • Relatively unaffected by moisture, abrasive
    dusts, or extreme variations in temperature
  • Acts as a fuse for the system components

9
V-Belts
  • V-Belts work using the principle of the wedge

10
V-Belt Construction
Tension Section Tensile Members Compression
Section
11
V-Belt Components
  • Rubber
  • Abrasion resistance
  • Heat resistance
  • Oil resistance
  • Flex resistance
  • Static conductivity
  • Cord
  • Strength
  • Shock load
  • Belt stretch
  • Fabric
  • Clutching requirements
  • Static conductivity
  • Crack resistance
  • Flexibility

12
Wrapped V-Belt Construction
  • 1. Cover - protective fabric cover impregnated
    with rubber
  • 2. Tension Section - synthetic rubber compounded
    to stretch as belt bends
  • 3. Cords - synthetic fiber cords carry the power
    and minimize stretch
  • 4. Compression Section - synthetic rubber
    compound to support cords evenly and compress as
    belt bends

13
Raw Edge V-Belt Construction
  • 1. Tension Section - specially woven
    stress-relieved fabric
  • 2. Cords - synthetic cord carries load with
    minimal stretch
  • 3. Compression Section - Stiflex rubber compound
    and precision molded cogs increase flexibility
    and supports cords
  • 4. Raw Edge Side Walls - provide uniform
    anti-slip surface, greater flexibility and allow
    more cord

14
Advantages Raw Edge vs. Wrapped
  • Performs more efficiently
  • Generates less heat
  • Increases H.P. rating
  • Provides longer life

15
The Right Belt for the Application
16
The Right Belt for the ApplicationCarlisle
Premium Raw-Edge Belts
  • FHP
  • Durapower II
  • Classical
  • Super II
  • Gold Ribbon Cog
  • Narrow
  • Power-Wedge

17
Durapower II V-BeltA real heavyweight in the
light duty arena
  • Premium materials provide longer life
  • Stress-relieved cover fabric provides maximum
    flexibility
  • Cord is specially treated to maintain belt loads
    without stretching
  • Raw-Edge side walls grip pulleys minimizing belt
    slip, noise and vibration
  • Special neoprene compounds support cords evenly
    and resist flex fatigue

18
Durapower II FHP V-Belt
Product Name Durapower II FHP (light duty)
V-Belt
Product Brand
Part No format Profile (3L, 4L, 5L), outside
length (inches)
Sizes/classifications Light duty/fractional
h.p., raw edge construction
Example A 5L750 is an FHP belt with an
outside length of 75, A top width of 5/8 and
a depth of 11/32.
19
Super II V-BeltThe Problem Solver
  • Greater strength from centrally placed, specially
    treated polyester cord
  • Longer life on severe drives
  • Resists rollover
  • Better grip with controlled slippage
  • Greater flexibility
  • Smaller pulleys
  • Backside idlers
  • Raw-Edge sidewalls minimize slip, noise and
    vibration
  • 100 neoprene resists heat, oil and ozone

20
Super II V-Belt
Product Name Super II V-Belt
Product Brand
Part No format A, B, C followed by inside
length
Sizes/classifications Classical profile,
raw-edge construction, 21 to 200
Example B94 has an inside length or standard
length designation of 94, and an outside
length of 96.8. It has a 21/32 top width
and a 7/16 depth.
21
Gold Ribbon Cog-Belt
The Energy Saver
  • Higher horsepower
  • Longer life
  • More energy efficient
  • Reduce downtime, save energy
  • Raw-Edge sidewalls minimize slip, noise and
    vibration

22
Gold Ribbon Cog-Belt
Product Name Gold Ribbon Cog-Belt
Product Brand
Part No format AX, BX, CX, DX followed by
inside length
Sizes/classifications Classical profile, raw
edge construction, 23 to 362
Example CX225 has an inside length or standard
length designation of 225 inches, and an
outside length of 227.2 inches. It has a 7/8
top width and 9/16 depth.
23
Power-Wedge Cog-Belt
  • Reduce cost, space and weight
  • Transmit more torque with less slip
  • Higher horsepower rating
  • Greater design flexibility
  • Longer life
  • Smoother running
  • Higher efficiency for energy savings
  • Improved belt flex - reduced bending stress

24
Power-Wedge Cog-Belt
Product Name Power-Wedge Cog-Belt
Product Brand
Part No format Profile (3VX, 5VX, 8VX)
followed by outside length (X10)
Sizes/classifications Narrow wedge
profile, raw edge construction
Example 5VX630 has an outside
length of 63 inchesnot 630. The
length in the part number is the outside as
opposed to classical belts that show
inside length. It has a 5/8 top
width and a 17/32 depth.
25
Belts that Better the Bottom Line
  • Carlisle energy efficient raw edge belts improve
    system performance
  • Payback is significant and begins immediately
  • The larger the number of drives and higher the
    horsepower, the more you save

26
Belts that Better the Bottom Line
  • Install Gold Ribbon Cog-Belts for immediate
    energy savings without modifying your drives
  • Conventional V-Belts deteriorate to a nominal
    efficiency of 93 percent
  • Carlisle Gold Ribbon Cog Belts maintain 95
    efficiency
  • Gold Ribbons higher horsepower capacity and
    longer life reduces maintenance intervals and
    down time

27
PowerMiser
  • Use PowerMiser to determine the cost
    effectiveness of replacing existing V-belts with
    Carlisle raw edge belts
  • Download at www.CarlisleBelts.com

28
PowerMiserSample Calculation
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