Timing belts optibelt HTD ® The Optibelt HTD® timing belts have curvilinear, particularly shear-resistant teeth. The tooth geometry in conjunction with the belt construction produces uniform load distribution and optimal meshing of the belt teeth in the timing belt pulleys. HTD® timing belts are also available in a double section version. Advantages • igh power transmission H • aintenance-free, reliable M • ositional accuracy, precise synchronisation P • ow noise, smooth running L • conomical efficiency E HTD ® The merits of the Optibelt HTD® and HTD® double timing belts make them suitable for heavy duty drive systems, in particular low speed systems with high starting torque. Examples of Applications Office equipment Data processing Household appliances Handling technology Gardening equipment Printing machines Textile machines Electrically powered tools Combustion engines Copiers Printers Kitchen appliances Swing lever robots Scarifiers, aerators Main drives Grip drives Belt grinders Camshaft drives Sections: HTD®: 20M HTD® D: D-5M; D-8M; D‑14M HTD®: endless timing belts    3M; 5M; 8M; 14M Dimensions: HTD®: 111 to 6600 mm HTD® D: 425 to 4578 mm other sizes on request