HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)
HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)
HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)
HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)
HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)
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HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)

HTD-5M Timing Belt 5mm Pitch 20mm Wide Closed Loop — 35 to 197 Teeth (175–985mm)

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By HomeDIYer®

Price:
$11.70 USD
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In stock (500 units), ready to be shipped

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Description

HTD-5M Closed Loop Timing Belt — Reliable Synchronous Drive for Precision Motion Systems

When a slipping or mismatched drive belt causes positioning errors in your CNC router, 3D printer, or robotic actuator, the entire project stalls. Engineers, makers, and machine builders who need a dependable HTD-5M timing belt with a wide selection of circumferences can stop searching — this closed loop synchronous belt is stocked in 155 sizes to cover nearly every drive configuration.

Each belt features the HTD-5M profile: 5mm pitch, 20mm width, and a rounded curvilinear tooth form engineered for high-torque, low-slip power transmission. Circumferences range from 175mm (≈6.9") to 985mm (≈38.8"), covering 35 to 197 teeth. The belt is constructed from neoprene rubber with fiber cord reinforcement for dimensional stability under tension.

Typical applications include large-format 3D printer axis drives, CNC router gantry systems, laser cutter motion stages, conveyor indexing mechanisms, and robotic joint actuators — anywhere a synchronous HTD-5M closed loop timing belt must maintain precise tooth engagement without slippage.

ℹ️ Compatibility Notice: This belt uses the HTD-5M profile (5mm pitch, rounded tooth). It is compatible with HTD-5M pulleys only — not GT2, T5, MXL, or other profiles. Always verify your pulley tooth profile before ordering.

✅ Key Features of These HTD-5M Closed Loop Timing Belts

  • ⚙️HTD Curvilinear Tooth Profile — The rounded HTD tooth form distributes load across a larger contact area than trapezoidal profiles, reducing tooth shear stress in high-torque synchronous drive applications.
  • 📏155 Circumference Options — Available from 175mm (≈6.9") to 985mm (≈38.8"), covering 35 to 197 teeth, so you can match an existing belt or design a new drive without custom fabrication.
  • ↔️20mm Belt Width — Wider than standard 9mm or 15mm variants, providing greater lateral stability and higher torque capacity for demanding CNC and robotic drive systems.
  • 🔒Closed Loop Construction — Seamless loop eliminates the splice point found in cut-to-length belts, maintaining consistent tension and tooth pitch around the full circumference.
  • 🧵Fiber Cord Reinforcement — Internal cord reinforcement resists elongation under load, helping maintain accurate positioning in closed-loop motion control systems such as CNC routers and laser cutters.
  • 🏭Neoprene Rubber Body — Neoprene offers resistance to moderate heat, oils, and abrasion compared to natural rubber, making it suitable for workshop and light industrial environments.

📐 Technical Specifications — HTD-5M Synchronous Timing Belt

Belt Profile HTD-5M (High Torque Drive)
Pitch 5mm (0.197")
Belt Width 20mm (≈0.79")
Tooth Profile Rounded curvilinear (HTD)
Circumference Range 175mm (≈6.9") – 985mm (≈38.8")
Tooth Count Range 35 – 197 teeth
Belt Type Closed loop (seamless)
Body Material Neoprene rubber (typically)
Reinforcement Fiber cord (typically fiberglass or steel)
Compatible Pulley Profile HTD-5M only
Tooth Pitch Compatibility 5mm — not compatible with GT2, T5, or MXL
Operating Temperature See variant options / Contact us to confirm
Max Tension Rating See variant options / Contact us to confirm
⚠️ Size Tip: Each variant is labeled with both tooth count and circumference (e.g., "60 Teeth 300mm"). Measure your existing belt's outer circumference or calculate from your pulley center distance before selecting a size.

❓ Frequently Asked Questions

How do I choose the right belt length for my application?

Measure the center-to-center distance between your two pulleys, then use the standard belt length formula: L = 2C + π(D1 + D2)/2, where C is center distance and D1/D2 are pulley pitch diameters. Each variant lists both tooth count and circumference in mm — for example, 60 Teeth = 300mm (≈11.8"). When in doubt, size up slightly and use a tensioner to take up slack.

What load or torque can this 20mm wide HTD-5M belt handle?

HTD-5M belts are generally rated for moderate-to-high torque applications. At 20mm width, these belts typically carry higher torque than narrower 9mm or 15mm variants of the same profile. Actual capacity depends on pulley diameter, operating speed, and wrap angle. Consult your drive system's engineering specifications or contact us to confirm suitability for your load requirements.

Can this timing belt be used outdoors or in wet/humid environments?

Neoprene rubber generally offers reasonable resistance to moisture and mild oils. However, prolonged UV exposure, standing water, or chemical contact may degrade belt life over time. For outdoor installations or wash-down environments, verify the specific material composition and consider a protective enclosure for the drive system.

Is this belt compatible with GT2 or other timing belt pulleys?

No. This belt uses the HTD-5M profile — a rounded curvilinear tooth form with 5mm pitch. It is not interchangeable with GT2, GT3, MXL, T5, or XL profiles, even if the pitch appears similar. Always match belt and pulley profiles exactly. HTD-5M pulleys are required.

Is this belt suitable for 3D printers, CNC routers, or laser cutters?

Yes. HTD-5M closed loop timing belts are widely used in large-format 3D printers, CNC router gantry drives, laser cutter motion stages, and robotic actuators where precise, slip-free synchronous motion is required. The 20mm width provides additional lateral rigidity compared to narrower belts, making it well-suited for heavier gantry assemblies.

How do I convert the belt circumference from mm to inches?

Divide the mm value by 25.4. Quick reference examples:

  • 175mm ÷ 25.4 ≈ 6.9"
  • 300mm ÷ 25.4 ≈ 11.8"
  • 500mm ÷ 25.4 ≈ 19.7"
  • 700mm ÷ 25.4 ≈ 27.6"
  • 985mm ÷ 25.4 ≈ 38.8"

Each variant label includes both tooth count and circumference in mm for easy matching.

What is the difference between HTD-5M and GT2 timing belts?

Both use a curvilinear tooth profile, but they are not the same. HTD-5M uses a larger rounded tooth optimized for high-torque transmission with minimal tooth deformation under load. GT2 uses a modified profile designed for lower backlash at lighter loads, common in desktop 3D printers. They are not interchangeable — always match belt and pulley profiles.

🛒 Select your size (tooth count and length) above, then add to cart — ships from our US warehouse.

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