PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced
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PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire ReinforcedPU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire ReinforcedPU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire ReinforcedPU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire ReinforcedPU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire ReinforcedPU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced

PU Closed Loop Timing Belt 1200–1399mm Perimeter | 10/15/20/30mm Width | Steel Wire Reinforced

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Beschreibung

 

PU Closed Loop Timing Belt 1200–1399mm — Precise Drive, Zero Slip

When a slipping or stretched belt throws off your CNC router, 3D printer, or conveyor system, every job suffers. Engineers, makers, and maintenance technicians who need a reliable closed-loop drive solution demand a belt that holds its pitch under load — without stretching out of spec after a few hundred hours of use.

Each belt is a seamless closed loop made from polyurethane (PU) with a built-in steel wire tensile core. Available perimeters run from 1200mm (≈47.2") to 1399mm (≈55.1") in 3mm increments, with widths of 10mm, 15mm, 20mm, and 30mm. Tooth pitch is 3mm, with tooth counts ranging from 400 to 466 teeth depending on the selected perimeter.

Typical use cases include replacement drive belts for desktop CNC machines and laser cutters, feed belts for automated conveyor lines, and motion control belts for pick-and-place or packaging equipment where consistent tooth engagement and low backlash are critical.

ℹ️ Compatibility Note: This belt uses a 3mm tooth pitch. Verify your pulley tooth profile (3M or equivalent) before ordering. GT2 (2mm pitch) pulleys are not compatible. Perimeter is measured as the full outer loop length.

✅ Key Features of These PU Closed Loop Timing Belts

  • 🔩Steel Wire Tensile Core — Embedded steel wire reinforcement resists elongation under load, maintaining consistent tooth pitch for accurate positioning in CNC and 3D printer drive systems.
  • 🔄Seamless Closed Loop Construction — No joint or splice means uniform stiffness around the entire loop, eliminating the vibration and wear points common in cut-and-joined belts.
  • 🧪Polyurethane (PU) Body — PU offers better oil and chemical resistance than standard rubber timing belts, making it suitable for light industrial conveyor environments with incidental fluid exposure.
  • 📐3mm Tooth Pitch, 400–466 Teeth — Precise tooth geometry ensures positive engagement with 3M-profile pulleys, delivering repeatable motion without slippage in closed-loop motion control applications.
  • 📏Four Width Options (10 / 15 / 20 / 30mm) — Match belt width to your load requirements: 10mm for light-duty plotters and printers, up to 30mm for heavier conveyor drive applications.
  • 🗂️Wide Perimeter Selection — Over 60 perimeter sizes from 1200mm to 1399mm in 3mm steps let you find an exact fit for your drive geometry without custom fabrication.

📐 Technical Specifications — PU Closed Loop Timing Belt

Belt Type Closed Loop Timing Belt (Seamless)
Material Polyurethane (PU) with built-in steel wire tensile core
Tooth Pitch 3mm
Tooth Profile 3M (confirm compatibility with your pulley)
Perimeter Range 1200mm (≈47.2") – 1399mm (≈55.1")
Tooth Count Range 400 – 466 teeth (varies by perimeter)
Available Widths 10mm / 15mm / 20mm / 30mm
Tensile Reinforcement Steel wire (built-in)
Color / Finish See variant options
Suitable Applications CNC routers, 3D printers, laser cutters, conveyors, pick-and-place systems
Operating Temperature Contact us to confirm
Country of Origin See variant options
⚠️ Sizing Tip: Perimeter increments are 3mm. If your required size falls between two options, select the next size up and adjust tension accordingly. Do not force a belt that is too short onto your pulleys.

❓ Frequently Asked Questions

How do I choose the right perimeter size for my machine?

Measure the center-to-center distance between your pulleys, then calculate the required belt loop length. As a general rule: perimeter ≈ 2 × center distance + (sum of pulley circumferences). This belt is available from 1200mm (≈47.2") to 1399mm (≈55.1") in 3mm increments. When in doubt, size up — a slightly longer belt can typically be tensioned; a belt that is too short cannot be installed.

What width should I choose — 10mm, 15mm, 20mm, or 30mm?

Width determines load capacity. For light-duty applications such as 3D printers or small plotters, 10mm is generally sufficient. For CNC routers, conveyor systems, or applications with higher lateral loads, 15mm or 20mm is typically recommended. The 30mm width is suited for heavy-duty industrial conveyor or drive applications.

What is the tooth pitch of this timing belt?

The tooth pitch is 3mm (3M profile). Each tooth is spaced 3mm apart — for example, a 400-tooth belt has a perimeter of 1200mm. Please confirm the tooth profile matches your pulley specification before ordering.

How strong is this belt — what load can it handle?

The built-in steel wire core provides tensile reinforcement generally suitable for light-to-medium drive applications. Exact load ratings depend on width, speed, and pulley diameter. For heavier industrial loads, we recommend the 20mm or 30mm width variants and consulting your drive system specifications.

Can this belt be used outdoors or in wet environments?

Polyurethane (PU) offers better resistance to oils, mild chemicals, and moisture compared to rubber belts. However, prolonged exposure to standing water or harsh outdoor UV conditions may reduce service life. For outdoor conveyor use, we recommend periodic inspection.

Is this belt compatible with standard GT2 or HTD pulleys?

This belt uses a 3mm tooth pitch (3M profile). GT2 pulleys use a 2mm pitch and are not compatible. HTD pulleys use a rounded tooth profile and are also generally not compatible. Always verify the tooth profile of your pulley matches the 3M profile of this belt before installation.

Does the steel wire core affect flexibility or installation?

The steel wire core adds tensile strength without significantly reducing flexibility for typical pulley diameters used in this perimeter range. Installation is straightforward — loop the belt over both pulleys and adjust tension via your tensioner. Avoid bending the belt around pulleys smaller than the minimum recommended diameter for your width.

🛒 Select your perimeter and width above, then add to cart — ships from our US warehouse.

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