690DH300 Double Sided Timing Belts are replacement belts. D690H300, 690-DH-300, TP690H300 dual toothed synchronous belts consist of several components, including fiberglass tensile cord, nylon tooth facing, neoprene body and backing. More specifically, belts are protected by neoprene body and backing. The toothed surface is protected by high wear resistant nylon elastic fabric. Fiberglass provides good flex life.
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Specifications
| Part No | 690DH300 | D690H300 | No of Teeth | 138 |
| Length [mm] | 1752.6 | Length [inch] | 69 |
| Pitch [mm] | 12.7 | Pitch [inch] | 0.500″ |
| Width [mm] | 76.2 | Width [inch] | 3″ |
| Profile | Trapezoidal | Belt Type | Endless | Double Sided |
| Tensile Cord | Fiberglass | Operating Temp C | -30 Degrees ~ +90 Degrees C |
| Body Material | Neoprene | Operating Temp F | -22 Degrees ~ +194 Degrees F |
| Tooth Facing | Nylon Fabric | Tooth Arrangement | Symmetrical (DA) | Non-Symmetrical (DB) |
(Note: Custom widths, sizes and materials available upon request)