DYMETROL USA
  • Home
  • Store
  • Cable Ties
    • Nylon Cable Zip Tie Straps
    • Acetal Cable Zip Tie Straps
  • Nylon Packing Strap
    • Package Strapping Distributors
    • Nylon Strapping Overview
    • Why High Recovery Nylon Strap?
    • Good Applications
    • Nylon Strapping Specifications
    • Types of Plastic Stapping
  • Drive Belts
    • Drive Belts Overview
    • Applications
    • Motorized Windows
    • Drive Belt Sizes
    • Sprockets & Channels
  • Belt Design
    • Design Considerations
    • Flexibility
    • Strength
    • Creep Resistance
    • Thermal Aging
    • Chemical & Weatherability
  • Recycling
  • Contact
    • News
    • About
    • Terms and Conditions
  • Category
  • Home
  • Store
  • Cable Ties
    • Nylon Cable Zip Tie Straps
    • Acetal Cable Zip Tie Straps
  • Nylon Packing Strap
    • Package Strapping Distributors
    • Nylon Strapping Overview
    • Why High Recovery Nylon Strap?
    • Good Applications
    • Nylon Strapping Specifications
    • Types of Plastic Stapping
  • Drive Belts
    • Drive Belts Overview
    • Applications
    • Motorized Windows
    • Drive Belt Sizes
    • Sprockets & Channels
  • Belt Design
    • Design Considerations
    • Flexibility
    • Strength
    • Creep Resistance
    • Thermal Aging
    • Chemical & Weatherability
  • Recycling
  • Contact
    • News
    • About
    • Terms and Conditions
  • Category

DESIGN CONSIDERATIONS OF DRIVE BELTS

Picture
Cycle Life
Cycle life, defined as the useful life of Dymetrol® Mechanical Drive belts in various applications, varies with the flexural stresses (bending radius),  tensile stresses (load), and rate of cycling. 
To simulate extreme cases, DETP 4205 belts have  been tested at 43 cycles per minute under various loadings employing a 180°wrap around rotating idler pulleys. Figure M shows how reduced load and increased diameter dramatically increase the cycle life (defined as an incipient delamination 10 between the holes of a punched specimen even though the belt is still fully functional).
Unpunched or solid belts  generally 5-10 times higher cycle life than punched belt since essentially no stress-risers are present. Under lighter loads, such as experienced with, for example, 
windshield wiper systems, 1 to 10 million cycles have been demonstrated with punched belts. 

Picture
Cycle Life vs Thickness
A second series of tests shown in Figure N
illustrates how cycle life is increased as belt thickness decreases. This is a natural result of the lower flexural stress in thinner sections.

Picture
Picture
Drag Force 
 Drag force for belt in an un-lubricated channel under load at 6 in./second testing speed has been measured. This data is shown in Figure 0. As an example, if the belt were to carry a load of five lbs through a 90°twist taken in a 6-inch length, the drag force would be about two lbs. As a second example, the belt loaded to five lbs would have an additional 12 lbs drag load if it took a 90°flat bend with a 2-inch radius. The existing data are adequate for either compressive (push) or tensile (pull) loading. At speeds under 6 in second, the drag forces are lower. It is expected that the tension-compression curves to diverge under high loading, and the drive system to be more efficient in a pull than a push mode. However under higher load, one might choose a thicker belt or the stiffer DET 4000 series in a compressive (push) dominated design. This data is preliminary and prototype testing is highly recommended in all cases.

FLEXIBILITY
ELASTICITY

TENSIL
STRENGTH

CREEP
RESISTANCE

THERMAL
AGING

CHEMICAL & 
WEATHERABILITY

Picture

Dymetrol®​ Company, Inc.

P.O. Box 250
1305 W. Seaboard Street

Bladenboro, NC 28320
USA
US Toll Free: 866-964-8632
Phone: 910-863-3400
Fax: 888-704-5822

Links

Home - About Us - Contact Us - Mechanical Drive Belt - Heavy Duty Nylon Cable  Tie Systems - Acetal Outdoor Cable Tie -  Nylon Strapping for Palletized Loads - Custom Grinding Recycling and Processing
Dymetrol® produces its acetal cable Zip Tie ties from a superior grade of acetal called Delrin®. Delrin® is a registered trademark of the DuPont Company. Dymetec® is a registered trademark of Dymetrol® Company, Inc.


All orders:

You will be directed to Paypal to complete your purchase.  Shipping charges will be applied separately.
Picture
TERMS and CONDITIONS
Picture
Picture
Picture
Picture
Website services provided by: Newmedia Design Solutions, Inc.  http://www.websitesalestools.com