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Gear Rack

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Metric Parallel Gear Rack - 20° Pressure Angle

Straight-tooth linear gear with 20° pressure angle, converting rotary motion into linear motion.

Plastic Gear Racks - 14 1/2° Pressure Angle

Plastic gear racks with a 14 1/2° pressure angle are used to convert rotational motion into linear motion, offering smooth and efficient operation with dimensions tailored for precise gear engagement and reduced noise in mechanical systems

Plastic Metric Gear Rack - 20° Pressure Angle

These angle are used to convert rotational motion into linear motion, with dimensions and specifications adhering to metric standards, ensuring smooth and efficient operation.

Plastic Inch Gear Racks - 20° Pressure Angle

Plastic inch gear racks with a 20° pressure angle are used to convert rotational motion into linear motion, with dimensions based on inch units, providing smooth and efficient operation in mechanical systems.

Metal Gear Racks - 14 1/2° Pressure Angle

These gears are designed for applications where specific gear meshing characteristics are required. The pressure angle of 14 1/2° is relatively common and provides a good balance between strength and smoothness in gear operation.

Metal Gear Racks with Mounting Holes - 14 1/2° Pressure Angle

They are designed for applications where precise linear motion is needed, and ease of installation is important. The mounting holes allow for secure attachment to a variety of surfaces or structures.

Metal Inch Rectangular Gear Racks - 20° Pressure Angle

These gear racks are often used in applications where precise linear movement is needed, and they are measured in inch-based units.

Metal Inch Round Gear Racks - 20° Pressure Angle

Metal Metric Round Gear Racks - 20° Pressure Angle

Unlike rectangular gear racks, round gear racks have a round cross-section, which provides greater flexibility in terms of mounting and integration into various mechanical systems.

Metal Metric Rectangular Gear Racks - 20° Pressure Angle

These gear racks are characterized by their rectangular profile and are designed to work with a pinion gear (a small round gear) that meshes with the rack’s teeth.

Standard Gear Rack

A gear rack is a linear gear that meshes with a pinion gear to convert rotational motion into linear motion. It is an essential component in various mechanical systems, providing precise and controlled movement.

What Are Gear Racks?

Gear racks are linear mechanical components that convert rotational motion into precise linear motion. By meshing with spur or helical gears (pinions), they ensure smooth movement, accurate positioning, and reliable force transmission. Gear racks are widely used in CNC machines, robotics, automation systems, material handling, and other industrial equipment.

Types of Gear Racks

Straight (Spur) Gear Racks

Straight or spur racks have teeth perpendicular to the rack length. They are ideal for general linear motion applications, offering simplicity, reliability, and cost-effectiveness. Spur racks are suitable for systems with moderate speed and load requirements.

Helical Gear Racks

Helical racks feature angled teeth that engage gradually with the pinion. This reduces noise, increases the contact ratio, and supports higher load capacity, making them suitable for high-speed and heavy-duty applications.

Material-Based Gear Racks

Steel Gear Racks

Steel racks provide high strength and wear resistance, making them ideal for heavy-duty industrial use. Available in standard, induction-hardened, or case-hardened versions for enhanced durability.

Plastic Gear Racks

Plastic racks, often made from nylon, are lightweight, corrosion-resistant, and quieter than metal racks. They can operate without lubrication, making them ideal for food-processing, medical, or chemical machinery.

Brass Gear Racks

Brass racks offer excellent workability and rust resistance. They are best suited for small-pitch applications and precise assemblies.

Stainless Steel Gear Racks

Stainless steel racks provide corrosion resistance and durability, ideal for harsh environments or food-grade applications.

Specialized Gear Racks

Round and Flexible Racks

These racks adapt to curved paths or reciprocating motion, providing versatile solutions where straight racks cannot be used.

Machined-End Racks

Pre-finished ends allow multiple racks to be connected seamlessly, enabling unlimited linear travel.

Hardened and Ground Racks

Hardened and ground racks offer high precision and abrasion resistance, suitable for critical linear motion systems requiring long-term accuracy.

Key Applications of Gear Racks

Gear racks are commonly used in:

CNC routers and machining centers
Pick-and-place robotic systems
Material handling systems
Traveling gantries and linear actuators
Automation and industrial machinery

They are preferred for applications requiring long linear travel, high load capacity, or precise motion. Gear racks provide a compact, modular solution without the length limitations of ball screws or other linear actuators.

Advantages of Gear Racks

Precisin and Reliability: Tight manufacturing tolerances ensure smooth engagement and consistent performance.
Versatility: Available in multiple materials, sizes, and tooth configurations to meet diverse application needs.
Durability: Hardened and treated options resist wear and maintain accuracy over long operational life.
Customization: Configurable lengths, hole positions, and finishing for easy integration.
Low Maintenance: Plastic and nylon variants can operate without lubrication, reducing maintenance requirements.

LILY Bearing Gear Racks

LILY Bearing gear racks combine precision, strength, and adaptability, delivering reliable linear motion solutions for a wide range of industrial applications. From standard spur racks to high-performance helical and specialized racks, LILY Bearing provides durable, high-quality products suitable for modern automation and machinery systems.