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home > DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide > DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide

DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide main image 0

DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide main image 1

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DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm WideDA L Double Sided Timing Belt Synchronized Drive on Both Sides When your machine requires power transmission from both the inner and outer belt surface think CNC routers, plotters, conveyor reversals, or multi axis 3D printers a standard single sided belt simply won't do. The DA L double sided timing belt solves this by delivering positive tooth engagement on both faces, eliminating slip and maintaining precise synchronization even in complex drive

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DA-L Double Sided Timing Belt — Synchronized Drive on Both Sides

When your machine requires power transmission from both the inner and outer belt surface — think CNC routers, plotters, conveyor reversals, or multi-axis 3D printers — a standard single-sided belt simply won't do. The DA-L double sided timing belt solves this by delivering positive tooth engagement on both faces, eliminating slip and maintaining precise synchronization even in complex drive geometries.

Each belt is a closed loop (no joining required) made from neoprene rubber with fiberglass cord reinforcement and nylon tooth facing. The L-series pitch is 9.525mm (3/8"), and belts are available in four widths — 12.7mm (1/2"), 20mm (≈13/16"), 25mm (1"), and 38mm (1-1/2") — with circumference options ranging from 217mm (≈8.5") up to 720mm (≈28.3"). Each listing is for one belt.

Typical use cases include CNC machine tool drives requiring reverse-side engagement, serpentine belt routing in automated equipment, synchronized conveyor systems, and replacement belts for plotters and cutting machines that use L-pitch double-sided timing belts.

🔗 Compatibility: Designed for standard L-series timing pulleys (9.525mm / 3/8" pitch). Verify pulley groove width matches your selected belt width before ordering.

✅ Key Features of These DA-L Double Sided Timing Belts

⚙️Double-Sided Tooth Profile — Teeth on both inner and outer surfaces allow simultaneous engagement with pulleys on either side, enabling serpentine and reverse-drive configurations that single-sided belts cannot support.
📐L-Series 9.525mm Pitch — Conforms to the widely adopted L-series tooth standard (3/8" pitch), ensuring compatibility with L-pitch pulleys from most major manufacturers for straightforward replacement or new builds.
🔄Closed Loop Construction — Factory-formed endless loop eliminates the need for belt lacing or joining hardware, providing a cleaner installation and more consistent tension distribution around the drive path.
🧱Fiberglass Cord Reinforcement — Internal fiberglass tension members resist stretching under load, maintaining consistent tooth pitch and reducing the need for frequent re-tensioning in demanding drive applications.
📏Wide Size Selection — Four belt widths (12.7mm, 20mm, 25mm, 38mm) and circumferences from 217mm to 720mm cover a broad range of machine configurations, from compact desktop CNC drives to larger industrial conveyor systems.
🛡️Nylon Tooth Facing — The nylon fabric overlay on the tooth surface reduces friction against pulley flanges, extends tooth wear life, and helps maintain dimensional accuracy over extended operating cycles.

📐 Technical Specifications — DA-L Double Sided Timing Belt

Belt Type	DA-L (Double-Sided, L-Series)
Tooth Pitch	9.525mm (3/8")
Tooth Profile	Trapezoidal (L-series standard), double-sided
Belt Construction	Closed loop (endless)
Body Material	Neoprene (CR) rubber
Reinforcement	Fiberglass tension cord
Tooth Facing	Nylon fabric
Available Widths	12.7mm (1/2") / 20mm / 25mm (1") / 38mm (1-1/2")
Available Circumferences	217mm (≈8.5") to 720mm (≈28.3") — see variant options
Quantity per Order	1 belt
Tensile Strength	See variant options / Contact us to confirm
Operating Temperature	Contact us to confirm
Compatible Pulley Standard	L-series timing pulleys (9.525mm pitch)

⚠️ Sizing Note: The number in the type code indicates belt circumference in millimeters (e.g., DA-300-L = 300mm circumference). Select the width that matches your pulley groove. If you are unsure, measure your existing belt or contact us before ordering.

❓ Frequently Asked Questions

How do I choose the right belt length and width?

Match the belt circumference to your pulley center distance. The type number indicates circumference in mm — for example, DA-300-L has a 300mm (≈11.8") circumference. Width should match your pulley groove: 12.7mm (1/2"), 20mm, 25mm (1"), or 38mm (1-1/2"). When replacing an existing belt, measure the old belt's outer circumference and width, or check your machine's parts list.

What is the pitch of this timing belt, and what does it mean?

This belt uses the L-series pitch of 9.525mm (3/8") — the distance between the centers of adjacent teeth. Pitch must match your pulley exactly for proper meshing. L-series is a widely used standard in light-to-medium industrial drives, CNC equipment, and automation machinery.

Can this belt handle outdoor or wet conditions?

Neoprene rubber generally offers moderate resistance to oil, grease, and incidental moisture, making it suitable for most indoor industrial environments. For prolonged outdoor exposure or wet/chemical environments, contact us to confirm suitability for your specific conditions before ordering.

What load capacity or tension rating does this belt have?

Load capacity varies by belt width and circumference. Wider belts (25mm, 38mm) typically carry significantly higher loads than narrower options (12.7mm). For precise tension ratings for your application, contact us with your drive specifications — we're happy to help you select the right size.

Is this belt compatible with standard L-series pulleys?

Yes. This belt conforms to the L-series tooth profile (9.525mm pitch) and is generally compatible with L-series timing pulleys from major manufacturers. Always verify that your pulley's groove width matches the belt width you select — mismatched widths can cause tracking issues or premature wear.

What machines use DA-L double sided timing belts?

DA-L double-sided timing belts are commonly used in CNC routers and mills, 3D printers, vinyl cutters and plotters, automated conveyor systems, and any machine requiring synchronized drive engagement on both belt faces — such as serpentine routing or reverse-direction drives where a single-sided belt would not engage the back-side pulley.

What is the difference between a DA belt and a standard timing belt?

A standard (single-sided) timing belt has teeth only on the inner surface and can only drive pulleys from the inside. A DA (double-sided) belt has teeth on both the inner and outer surfaces, allowing it to drive pulleys on either side simultaneously. This is essential for serpentine drive layouts, reverse-direction drives, and multi-axis synchronization setups.

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

DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide

Name: DA-L Double Sided Teeth Closed Loop Timing Belt | 9.525mm Pitch | 12.7–38mm Wide
Brand: bwoder.com
SKU: 93702478488
Price: 40.35 USD
Availability: InStock
Rating: 4.1899 (49 reviews)