112-MXL Timing Belt – Closed Loop

Laser Machine Belts & Motion Components

112-MXL Timing Belt – Closed Loop

The 112-MXL Timing Belt is a closed-loop synchronous drive belt designed for compatible laser engraving and cutting machine motion systems. Featuring a 284.48 mm pitch length, 140 teeth, and an MXL trapezoidal tooth profile, this belt provides positive engagement with matching timing pulleys for controlled, synchronized movement.

Constructed from neoprene rubber with fiberglass tensile reinforcement and a protective nylon tooth covering, this timing belt combines flexibility with dimensional stability. Its compact 2.032 mm tooth pitch and continuous closed-loop design make it a practical replacement for compatible precision motion and drive assemblies.

Key Features

• Closed-loop synchronous timing belt for compatible laser machine motion systems
• 284.48 mm pitch length with 140 evenly spaced teeth
• MXL trapezoidal tooth profile with a precise 2.032 mm pitch
• Compact tooth geometry designed for matching MXL timing pulleys
• Neoprene rubber construction provides flexibility during repeated rotation
• Fiberglass tensile cords help resist stretching and maintain dimensional stability
• Nylon fabric tooth covering helps reduce wear during pulley engagement
• Nominal 1.14 mm overall thickness with 0.51 mm tooth height
• Continuous closed-loop construction for compatible pulley drive assemblies

Product Specifications

Product Type	Synchronous Timing Belt
Belt Designation	112-MXL
Tooth Profile	MXL (Mini Extra Light), Trapezoidal
Pitch Length	284.48 mm (11.20")
Tooth Pitch	2.032 mm (0.080")
Tooth Count	140 Teeth
Nominal Tooth Height	0.51 mm (0.020")
Nominal Overall Thickness	1.14 mm (0.045")
Belt Material	Neoprene Rubber
Reinforcement	Fiberglass Tensile Cords
Tooth Covering	Nylon Fabric
Tooth Arrangement	Single-Sided
Belt Construction	Closed Loop / Endless
Primary Application	Compatible Timing Belt Drive Systems
SKU	181
Quantity	1 Timing Belt

How the MXL Timing Belt Works

Synchronous timing belts transfer mechanical motion between rotating pulleys through evenly spaced teeth. Unlike smooth belts that depend primarily on friction, toothed belts engage matching pulley grooves to maintain a consistent relationship between connected drive components.

The MXL profile features trapezoidal teeth spaced 2.032 mm apart. These teeth engage corresponding MXL timing pulleys to transfer movement in a controlled manner. The neoprene body provides flexibility, while internal fiberglass tensile cords help resist elongation during normal operation.

A nylon fabric covering protects the tooth surfaces during repeated contact with the pulleys. Proper belt tension, pulley alignment, and tooth engagement help maintain consistent movement and reduce premature wear.

Understanding 112-MXL Belt Specifications

MXL timing belts use a standardized imperial tooth pitch of 0.080 inches, equivalent to 2.032 mm. This measurement describes the spacing between corresponding points on adjacent belt teeth.

The 112-MXL length designation corresponds to an 11.20-inch pitch length, equivalent to 284.48 mm. With 140 teeth spaced 2.032 mm apart, the belt forms a continuous closed loop. Pitch length is measured along the belt's pitch line rather than around its outside surface.

The tooth profile, pitch length, tooth count, and belt width must match the original drive system. Correctly matching these dimensions helps maintain proper pulley engagement and consistent movement.

Confirm Compatibility Before Ordering

Not all timing belts are interchangeable. Before purchasing a replacement, compare the following specifications with your existing belt and pulley system:

• Original belt designation and MXL tooth profile
• 284.48 mm pitch length and 140-tooth count
• 2.032 mm tooth pitch and matching pulley geometry
• Belt width and pulley groove clearance
• Closed-loop belt construction
• Required belt tension and drive configuration

MXL timing belts have a different tooth pitch and profile from HTD 3M and 5M timing belts. These belt types are not interchangeable. Select a replacement that matches the specifications of your machine's motion system.

Installation & Safety

Before replacing a timing belt, turn off the laser machine and disconnect power according to the manufacturer's service instructions. Release existing belt tension and inspect the pulleys, idlers, and mounting components for worn teeth, damage, or accumulated debris.

Install the replacement belt with its teeth correctly seated in the pulley grooves. Ensure proper pulley alignment and adjust belt tension according to the equipment manufacturer's specifications. Avoid forcing the belt over pulley flanges or applying excessive tension. Check for smooth, unobstructed movement before returning the machine to operation.