89240001
Description
# Polyflex™ JB™ Belts
High Modulus Polyurethane compound resists fatigue, wear, ozone and most environmental conditions. It also improves adhesion to the tensile cords.
## Features and Benefits
– Excellent adhesion of tensile cords and polyurethane compound leads to high fatigue resistance and long belt life.
– Small cross-section meets special application needs such as high shaft speeds, small drive package size and smooth running requirements.
– The 60° angle provides more undercord support to the tensile section and distributes the load more evenly.
– Ribs relieve bending stress on small pulleys and provide lateral rigidity.
– Long belt life on small pulleys and compact drives.
– The precise casting method eliminates overlaps and layers.
– High performance and smooth running for precision applications.
– Avoids vibrations when subjected to shock loads.
– Joined Belt construction improves stability.
– Greater shaft speeds, up to 30,000 rpm.
– Cost savings and design freedom.
Additional information
| Cross Section | 11MJB, 3MJB, 5MJB, 7MJB |
|---|---|
| Top Width Per Strand (in) | 0.125 – 1 |
| Top Width Per Strand (mm) | 3 – 25 |
| Effective Length (in) | 6.74 – 592.89 |
| Effective Length (mm) | 171 – 15059 |
| Notched | false |
| Number of Ribs | 2 – 9 |
| Strand | 2 – 5 |
| Top Width (in) | 0.12 – 10 |
| Top Width (mm) | 3 – 254 |
| Angle. | 40 – 60 |
| Thickness (in) | 0.08 – 0.98 |
| Thickness (mm) | 2 – 25 |
| Markets/Applications | Use in place of Polyflex® singles on drives requiring joined sets. A partial listing of applications includes machine tools, computer peripherals, medical equipment, library equipment, small appliances, blower drives and dough mixers. |
| Color | Black, Brown |
| Construction | Bandless, Banded |
| Material | Belt Material is Polyurethane. Cord Material is Polyester, Belt Material is Polychloroprene (Neoprene). Cord Material is Aramid |
| Recommended For | Contact the Gates Made-To-Order Metals Team. |
| Belt Notes | Manufacturing lead times and minimum order quantities may apply to matched sets and to rib configurations other than those listed. Minimum order quantities do not apply for belt lengths listed. Contact Customer Service for details. Polyflex® JB® Belts are available in 3M, 5M, 7M, and 11M cross sections. The Polyflex® JB® belt part number is comprised of the number of belt strands, cross section, effective length and the "JB" signifying joined band construction. For example; part number 3/5M1000JB represents 3 strands joined together, 5mm top width for each belt strand, effective length of 1000mm and joined band (JB) construction. |
| Customer Pack | 5 – 100 |
| Weight (lbs.) | 0.004 – 2.495 |
| Outside Circumference (in) | 6.9 – 600 |
| Outside Circumference (mm) | 175 – 15240 |
| Section | 3M/JB, 8VP, 5M/JB |