GATES POLYFLEX® JBTM
POLYURETHANE MULTIPLE V-BELT
Polyflex® JBTM is synonymous with high power density in small spaces. Developed by Gates and produced to patented manufacturing processes, these belts provide more load-carrying capacity at higher speeds to small multiple V-belt precision drives. This results in significant cost savings and improved design freedom. Polyflex® JBTM belts are recommended for use on bench type milling machines, lathe drives, woodworking and metalworking machine spindle drives, computer peripheral equipment, small blowers, etc. They are available in 3M-JB, 5M-JB, 7M-JB and 11M-JB sections.
CONSTRUCTION
- JB = Joined Belt construction improves stability.
- Ribs relieve bending stress on small pulleys and provide lateral rigidity.
- The 60° angle provides more undercord support to the tensile section and distributes the load more evenly.
- Small cross-section meets special application needs such as high shaft speeds, small drive package size and smooth running requirements.
- High modulus polyurethane compound with a high friction coefficient.
- The precise casting method eliminates overlaps and layers.
- Excellent adhesion of tensile cords and polyurethane compound leads to high fatigue resistance and long belt life.
- Extra toughness. The polyurethane compound resists fatigue, wear and ozone.
BENEFITS
- Long belt life on small pulleys and compact drives.
- Greater shaft speeds, up to 30,000 rpm.
- High performance and smooth running for precision applications.
- Cost savings and design freedom.
- Avoids vibrations when subjected to shock loads..
- Available on demand in Matched sets. Contact Customer Service for details.
- Available on demand in MTQ (MTQ=Machine Tool Quality) execution (Except on 3M-JB). Contact Customer Service for details.
- Temperature range: -54°C up to +85°C.
| Sections and nominal dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|
| Section | Standard numbers of ribs | Width (mm) |
Height (mm) |
Pitch/ (mm) |
Length range (effective length - mm) |
|||
| 2 | 3 | 4 | 5 | |||||
| 3M-JB | X | X | 3 | 2.28 | 3.35 | 175 – 750 | ||
| 5M-JB | X | X | X | X | 5 | 3.30 | 5.30 | 280 – 1500 |
| 7M-JB | X | X | X | X | 7 | 5.33 | 8.50 | 490 – 2293 |
| 11M-JB | X | X | 11 | 7.06 | 13.20 | 692 - 2282 | ||
| Ordering Code | |||
|---|---|---|---|
| 5M280/3 5M - Section 280 - Effective length (mm) 3 - Number of ribs (joined belt) | |||
| NOTE: For correct design and tensioning of the belt please use Gates DesignFlexTM ProTM Drive design software, available on www.Gates.com/Europe. | |||
| Identification Durable white marking indicating the belt type and white marking indicating the belt dimensions. | |||
