HTD 8M Open Timing Belt 25mm Wide — Select Length 264mm to 2800mm

Measure the center-to-center distance between your drive and driven pulleys, then calculate: Belt Length ≈ 2 × C + π × (D1 + D2) / 2. For open-end belts used on linear axes, simply measure the required span and add 50–100mm for clamping allowance. For example, 500mm (≈19.7\u2033) is a common choice for mid-size CNC gantry axes. When in doubt, order longer and trim — open-end belts are easy to cut to length.

This belt uses the HTD 8M profile — an 8mm pitch with a rounded (curvilinear) tooth form designed for high-torque synchronous drives. The belt is 25mm wide, which is generally suited for moderate-to-heavy load applications such as CNC router axes and industrial linear actuators. Always verify your pulley specification matches both the pitch (8M) and the belt width (25mm).

HTD 8M belts are generally rated for higher torque than narrower-pitch profiles like 5M or 3M. A 25mm-wide 8M belt can typically handle significantly more load than a 15mm-wide version of the same pitch. Exact capacity depends on pulley diameter, operating speed, and duty cycle — consult your drive system's engineering specifications or contact us to confirm suitability for your application.

HTD timing belts are typically constructed from neoprene rubber with fiberglass or steel cord reinforcement, which generally offers reasonable resistance to moisture and moderate temperatures. However, prolonged exposure to UV radiation, oils, solvents, or extreme heat may degrade performance over time. For harsh outdoor or chemical-exposure environments, contact us to confirm material specifications before ordering.

This belt is compatible with HTD 8M pulleys designed for 25mm belt width (or wider flanged pulleys). The HTD profile is not interchangeable with GT2, MXL, T5, or XL profiles — the tooth geometry differs and mixing profiles will cause skipping or premature wear. Always match both the pitch designation (8M) and the belt width to your pulley specification.

Yes — as an open-end belt, it can be cut to any length with a sharp utility knife or belt cutter. We offer lengths from 264mm (≈10.4\u2033) to 2800mm (≈110.2\u2033) so you can order close to your target and trim as needed. Cut squarely across the belt width for the cleanest result. Cutting does not affect belt performance when done properly.

HTD 8M 25mm open timing belts are commonly used in CNC routers, laser cutters, plasma cutting tables, large-format 3D printers, and industrial automation equipment where higher torque and precise synchronous positioning are required. They are also used in conveyor systems and custom linear motion builds that specify an 8M pitch drive.