The McLease MOTORDYNAMICS PRO: Precision Gear Rack is the sturdy, toothed metal track that guides the precise, linear movement of your CNC machine's components. Think of it as the highly accurate railway line on which your machine's cutting head or gantry precisely travels. It's built with specially machined teeth that ensure stable and accurate linear motion when paired with a matching pinion.

What it is & How it Works (Engineering Principle):

This is the long, rigid bar that forms the linear pathway. It works in conjunction with a matching "Precision Pinion" (sold separately) that meshes with its teeth. As the pinion rotates, its teeth engage with the rack's teeth, causing the rack (and whatever is mounted on it) to move in a straight line. This precise meshing ensures accurate positioning, high rigidity, and efficient power transmission.

Use & Application:

McLease MOTORDYNAMICS PRO Racks are fundamental for any CNC metal cutting machine (Fiber Laser, Plasma, OxyFuel) and heavy-duty welding automation systems (like Gantry MIG). They are essential for precisely controlling the long X and Y axes of the gantry, ensuring accurate and high-speed movement across the entire working area.

Typical Quantity Required for CNC Machines:

For a standard gantry-type CNC Plasma or Fiber Laser cutting machine:

• X-axis (Gantry Bridge Movement): Typically uses 2 racks (one on each side for stability and synchronized movement).
• Y-axis (Cutting Head Movement on Gantry): Typically uses 1 rack along the gantry bridge.
• The Z-axis (up-down torch movement) usually uses a ball screw, not a rack.
• So, a common 3-axis CNC machine often requires 3 racks in total. These racks are typically bought in 1-meter or 2-meter segments to achieve the total required length for each axis.

Choosing Your Rack: Key Features:

1. Tooth Type (Crucial for Performance):
   • Helical Gear Racks (Highly Recommended): These have angled teeth, providing smoother and quieter operation, higher load capacity (more teeth in contact simultaneously), and reduced backlash (better precision and less wear). They are the preferred choice for high-precision CNC cutting and welding machines.
   • Straight (Spur) Gear Racks: Simpler and potentially cheaper, but generally less preferred for high-precision CNC due to higher noise and vibration.
2. Tooth Size (Module - M): Defines the size of the teeth. Smaller modules (e.g., M2, M3) mean finer teeth and higher precision, while larger modules (e.g., M4, M5+) handle heavier loads. For CNC machines, M2 to M5 are typically used for X/Y axes.
3. Accuracy Class (DIN Standard - Critical for Precision): This is paramount for the overall accuracy of your machine. The lower the DIN number, the higher the precision and cost.
   • DIN 6: Very high precision, typically used for high-end Fiber Laser Cutting Machines.
   • DIN 7: High precision, suitable for most industrial CNC Plasma-OxyFuel Cutting and general Fiber Laser applications.
4. Material & Hardness: Often high-strength Alloy Steel (e.g., SCM440) for durability. Hardened and ground racks (e.g., 50-60 HRC) offer superior wear resistance and accuracy.
5. Length: Sold in standard lengths (e.g., 1 meter, 2 meters) or custom lengths with machined ends for seamless connection.

Brief Installation & Maintenance:

• Installation: Requires a clean environment, precise alignment along the machine's axis, and proper bolting.
• Maintenance: Keep clean from dust/chips. Ensure proper lubrication (managed by matching pinions).

Warranties:

All McLease MOTORDYNAMICS PRO Racks come with the standard manufacturer's warranty (typically 12-24 months).

Crucial Compatibility Note: These racks MUST be paired with matching Precision Pinions from the same brand and series (e.g., a Helical M3 rack needs a Helical M3 pinion). We highly recommend purchasing both your racks and matching pinions from McLease to ensure perfect compatibility and optimal performance.

Outright Sale Prices (Per Meter):

A. Mid-Range Precision (Helical / M2-M4 / DIN 8-7)

• Gear Rack (e.g., Helical, M3, DIN 7): INR 1,800/- per meter

B. High-Precision / Ground (Helical / M2-M5 / DIN 6-7)

• Gear Rack (e.g., Helical, Ground, M4, DIN 6): INR 6,000/- per meter

Precision Gear Racks (Per Meter) - CNC Laser/Plasma | McLease

Shop McLease MOTORDYNAMICS PRO: Precision Gear Racks (per meter) for CNC Laser/Plasma. Helical, DIN 6/7, buy online. Pair with matching pinions