MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width
MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width
MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width
MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width
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MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm WidthMXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm WidthMXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm WidthMXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width

MXL Closed Loop Rubber Timing Belt — B107 B108 B109 B110 | 6mm & 10mm Width

HomeDIYer
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By HomeDIYer®

Price:
$9.49 USD
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In stock (500 units), ready to be shipped

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Description

 

MXL Closed Loop Rubber Timing Belt — Precise, Slip-Free Drive for 3D Printers, CNC & Robotics

When a worn or incorrectly sized timing belt causes missed steps, layer shifts, or erratic motion in your 3D printer, CNC router, or robotic arm, finding an exact replacement can be frustrating. These MXL closed loop rubber timing belts — available in B107, B108, B109, and B110 configurations — are engineered for the small precision drives that demand consistent tooth engagement and zero slippage.

Each belt is a single closed loop made from rubber with fiberglass cord reinforcement for dimensional stability under tension. The MXL tooth pitch is 2.032mm (0.080"), and belt widths are available in 6mm (≈1/4") and 10mm (≈3/8"). The four size options cover the following tooth counts: 86MXL (B107), 87MXL (B108), 87.2MXL (B109), and 88MXL (B110) — sold individually (1 piece per order).

These MXL synchronous belts are a direct fit for 3D printer X/Y axis drives, hobby CNC router feed systems, small robotic joint actuators, and office automation equipment such as plotters and label printers. The closed-loop design eliminates the need for splicing or joining, making installation straightforward on fixed-center-distance pulley systems.

🔵 Compatibility: Fits standard MXL pulleys (2.032mm / 0.080" pitch, 40° tooth angle). Match belt width (6mm or 10mm) to your pulley groove. Verify tooth count before ordering — see size guide in FAQ below.
⚠️ Size confirmation recommended: B107, B108, B109, and B110 differ by only 1–2 teeth. Count your existing belt's teeth or measure the belt circumference before selecting a variant.

✅ Key Features of These MXL Closed Loop Timing Belts

  • ⚙️Standard MXL Tooth Profile — 2.032mm (0.080") pitch with 40° tooth angle matches any standard MXL pulley, ensuring consistent tooth engagement in 3D printer and CNC drive systems.
  • 🔄Closed-Loop Construction — Seamless loop design eliminates splice points, reducing the risk of belt failure and maintaining uniform tension throughout the drive cycle.
  • 🧵Fiberglass Cord Reinforcement — Internal fiberglass tensile cords resist stretching under load, helping maintain accurate positioning in closed-loop motion control applications.
  • 📐Two Width Options — Choose 6mm for compact, lightweight drives or 10mm for applications requiring higher torque capacity; both widths follow the same MXL tooth profile for interchangeability.
  • 🔇Low-Noise Rubber Compound — The rubber body dampens vibration and runs quietly, making these synchronous belts well-suited for desktop CNC routers and office automation equipment where noise matters.
  • 🔁Four Size Variants in One Listing — B107 (86MXL), B108 (87MXL), B109 (87.2MXL), and B110 (88MXL) are all available, covering the most common replacement sizes for small precision drives without ordering from multiple sources.

📐 Technical Specifications — MXL Closed Loop Timing Belts

Belt Type MXL (Miniature Extra Light) Closed Loop Synchronous Belt
Tooth Pitch 2.032mm (0.080")
Tooth Angle 40°
Available Types 86MXL (B107) / 87MXL (B108) / 87.2MXL (B109) / 88MXL (B110)
Belt Width Options 6mm (≈1/4") / 10mm (≈3/8")
Material Rubber with fiberglass cord reinforcement
Loop Style Closed loop (no splice)
Pack Quantity 1 piece per order
Tooth Count See variant options (86 / 87 / 87.2 / 88 teeth)
Belt Circumference See variant options — contact us to confirm if needed
Compatible Pulleys Standard MXL pulleys (verify groove width matches belt width)
Typical Applications 3D printers, CNC routers, robotics, office automation equipment

❓ Frequently Asked Questions

How do I choose the right MXL belt size — B107, B108, B109, or B110?

The number in the belt code refers to the total number of teeth. B107 = 86MXL (86 teeth), B108 = 87MXL (87 teeth), B109 = 87.2MXL, B110 = 88MXL (88 teeth). Measure your existing belt's outer circumference or count the teeth on your pulley system to confirm the correct size. MXL pitch is 2.032mm (0.080" per tooth), so multiply tooth count × 2.032mm to get the approximate belt length. For example, 87 teeth × 2.032mm = 176.8mm (≈6.96").

What is the pitch of an MXL timing belt?

MXL (Miniature Extra Light) belts have a standardized tooth pitch of 2.032mm (0.080"). This pitch is widely used in small precision drive applications including 3D printers, CNC machines, and robotics. It is not interchangeable with XL (5.08mm), L (9.525mm), or HTD profiles.

Which belt width should I choose — 6mm or 10mm?

Choose based on your pulley groove width and the load requirements of your application. The 6mm width is typically used in lighter-duty or compact drives such as small 3D printers and hobby CNC routers. The 10mm width generally offers higher torque capacity and suits applications with greater lateral load or wider pulleys. Always match the belt width to the pulley groove width for proper tracking.

How much load can these MXL timing belts handle?

MXL belts are designed for light-duty precision drives. Exact load ratings depend on belt width, pulley diameter, and operating speed. Generally, the 6mm width suits low-torque positioning applications, while the 10mm width can handle moderately higher loads. For heavy industrial drives, a larger pitch belt (XL, L, or HTD series) is typically recommended.

Are these timing belts suitable for outdoor or wet environments?

These belts are made from rubber with fiberglass cord reinforcement, which provides good resistance to incidental moisture in typical indoor conditions. For prolonged outdoor exposure, UV radiation, or chemical environments, performance may degrade over time. In most cases, they are best suited for enclosed or semi-protected applications such as desktop machines and indoor automation equipment.

Are these belts compatible with standard MXL pulleys?

Yes. These belts follow the standard MXL tooth profile (2.032mm pitch, 40° tooth angle) and are generally compatible with any standard MXL pulley. Always verify that the pulley groove width matches your chosen belt width (6mm or 10mm) before ordering to ensure proper belt tracking and engagement.

Can I use these belts as a replacement for OEM timing belts in office equipment?

In many cases, yes. MXL belts are widely used in printers, scanners, plotters, and other office automation equipment. Match the tooth count (B107 / B108 / B109 / B110) and belt width to your OEM specification to confirm compatibility. If you are unsure of the original spec, count the teeth on the old belt or measure its circumference and divide by 2.032mm.

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

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