Gates Polyflex  JB V Belts (Polyurethane V Belt)
Gates Polyflex Series Polyurethane V Belts are suited for extremely small diameter pulleys and very compact drives with high rotational speeds.

Polyflex is ideal for use on machines or machine tools requiring high performance and smooth operation in limited space such as bench type milling machines, lathe drives, woodworking and metal working machine spindle drives, blower and cooling towers
Gates PolyFlex V belts are available in the following cross sections:
  • •       3M-JB
    •       5M-JB
    •       7M-JB
    •       11M-JB
1: Joined belt construction improves stability.
2: Ribs relieve bending stress on small pulleys and provide lateral rigidity.
3: 60°angle results in better support of the tensile section, and provides a more even load distribution.
4: Small cross-section meets special application needs such as high shaft speeds, small drive package size and smooth running requirements.
5: High modulus polyurethane compound with a high friction coefficient.
6: The precise casting method eliminates overlaps and layers.
7: Excellent adhesion of tensile cords and polyurethane compound leads to high fatigue resistance and long belt life.
8: Extra tough, the polyurethane compound resists fatigue, wear and ozone
  Pitch mm Width mm Height mm
3M-JB 3.35 3 2.28
5M-JB 5.30 5 3.30
7M-JB 8.50 7 5.33
11M-JB 13.20 11 7.06