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Black rubber timing belt 138XL 69 teeth 350mm loop 10mm wide

Unique-Bargains

Unique-Bargains 138XL 69 Teeth 350mm 10mm Timing Belt part

SKU CH-6DJB-MZDMQ MPN 138XL

Closed-loop rubber timing belt with 69 teeth, 350 mm circumference, 10 mm width and 5.08 mm pitch for precise power transmission

  • Precise 5.08 mm pitch ensures accurate synchronisation
  • 69 teeth deliver reliable torque transmission
  • 10 mm width handles light-load conveyance
  • 350 mm closed loop maintains dimensional stability
  • Reinforced cord construction provides strong anti-wear performance

Application Fit

This closed-loop rubber timing belt is designed for torque transmission and light-load conveyance in machinery and automation projects. Its 5.08 mm pitch and 350 mm perimeter suit 3D printers, linear motion stages and similar precision drives. Builders needing heavier power transfer or a different tooth profile should look elsewhere.

Sustained Operation

The reinforced cord construction maintains running capability during continuous driving cycles. Rubber material provides reliable transmission and fine size stability over long periods without stretching. Users running high-torque or shock-load applications will find the light-load rating insufficient.

Build Practicalities

A 10 mm belt width and 69 teeth engage securely with matching XL pulleys for consistent meshing. The single-piece closed loop requires no splicing or tensioning hardware during installation. Workshops without compatible 5.08 mm pitch pulleys cannot use this belt.

Highlights

  • Precise 5.08 mm pitch ensures accurate synchronisation
  • 69 teeth deliver reliable torque transmission
  • 10 mm width handles light-load conveyance
  • 350 mm closed loop maintains dimensional stability
  • Reinforced cord construction provides strong anti-wear performance

Specifications

BrandUnique Bargains

Questions about this item

How much power does the 138XL belt draw when running continuously?

The 138XL is a passive rubber timing belt with no electrical components, so it draws zero power during operation.

What pulley pitch must I already have for the 5.08mm pitch 138XL belt to mesh correctly?

You need pulleys with a matching 5.08mm (0.2") pitch; the belt has 69 teeth and a 350mm circumference designed for that pitch.

Will the 10mm wide 138XL belt fit on the narrower pulleys from my older 3D printer?

The belt width is 10mm (0.4"), so it requires pulleys with at least a 10mm face width to engage all teeth properly.

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