Rack
High-Precision Gear Racks Manufacturer
Huihuang Chain produces high-precision linear gear racks designed for linear motion systems, CNC routers, automated machinery, and heavy industrial lifts. Available in helical and spur profiles, our gear racks offer high position accuracy, minimum backlash, and exceptional resistance to axial loads.
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Straight Rack - M4 40×40×2000mmThis M4 straight rack with dimension 40×40×2000mm is a standard linear transmission component built for reliable rack and pinion drive systems.read more -
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CNC Machine Rack M4 × 1000mm × 30×30mmEngineered for CNC machines and automation systems, our M4 straight spur rack delivers reliable, high-precision linear motion for demanding industrial use.read more -
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Helical Rack Helical Gear RackOur M2 helical rack with 15° helix angle is engineered for high-precision, low-noise linear motion applications. With a 45×45mm cross-section and 1000mm length, it delivers smooth, continuous...read more -
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Elevator Rackelevator rack /HR-40×60×1508mm Elevator Rackread more
Model: HR-40×60×1508, Module M8Overall Dimensions
Width: 40 mm
Height: 60 mm
Length: 1508 mm (Standard section... -
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Non-standard Custom Gear RackProduct Name: Non-standard custom gear rackread more
Material: Alloy/Carbon Steel/stainless steel
Color: solid color
Pitch: Whole series
Supply type: ODM &OEM
Key Features of Huihuang Precision Gear Racks
Continuous Linear Motion
Ideal for converting rotary motion into linear motion across long-distance machinery tracks.
High Positioning Accuracy
Milled and ground teeth ensure tight pitch tolerances for exact CNC positioning.
Jointable Design
Ended-matched teeth design allows seamless joining of multiple racks for endless travel lengths.
Comprehensive Product Range
Spur Gear Racks
Standard cost-effective linear transmission.
Helical Gear Racks
Quiet operation, reduced friction, and higher load capacity.
Round Gear Racks
Versatile design for vertical lifting and sliding structures.
Heavy-Duty Hardened Racks
Designed for extreme wear and heavy machinery loads.
Product Specifications
|
Parameter |
Standard / Custom Specifications |
|
Module Range |
Mod 1.0 – Mod 10.0 |
|
Length per Piece |
500mm, 1000mm, 1500mm, 2000mm (Custom lengths available) |
|
Precision Class |
DIN 6, DIN 8, DIN 10 |
|
Tooth Profile |
Straight Tooth (Spur) / Inclined Tooth (Helical 19°31'42") |
|
Material |
C45 Carbon Steel, 42CrMo, Stainless Steel (304/316) |
|
Heat Treatment |
High-Frequency Tooth Induction Hardening (HRC 50-55) |
|
Cross Section |
Square, Rectangular, Round |
Industrial Applications of Gear Racks
Our gear racks are widely utilized in precision linear movement and heavy lifting systems:
CNC Laser Cutting & Woodworking Routers
Smooth, high-speed gantry positioning.
Automated Factory Gantry Systems
Reliable linear transfer across automated production lines.
Elevators & Construction Lifts
High safety rack-and-pinion drive systems.
Industrial Robotics & Material Handling
Precise positioning for automated robotic arms.
Precision Gear Rack Manufacturing Process
Steel Bar Straightening & Cutting: Raw material steel bars are cut and stress-relieved to ensure straightness.
Planing & Surface Milling: Milling four sides of the rack to maintain precise rectangular dimensions.
Precision Rack Hobbing/Milling: Tooth cutting using specialized high-precision rack hobbing machines.
Induction Tooth Hardening: Applying localized heat treatment to gear teeth to enhance wear resistance without deforming the bar.
Straightening & Surface Grinding: Post-heat treatment straightening followed by top and bottom grinding.
Tooth Profile Grinding (DIN 6): Precision tooth grinding for high-accuracy applications.
Joint Matching & Quality Inspection: Ensuring continuous pitch continuity across connected rack sections.
Gear Rack Maintenance & Operating Precautions
Maintenance Advice:
- Continuous Lubrication: Apply linear rack grease or automated oil lubrication to prevent tooth wear.
- Cleaning Maintenance: Regularly clean debris, metal dust, and chips off the rack tracks.
- Bolt Tightening Inspection: Periodically check mounting bolts to ensure the rack sections stay rigidly aligned.
Usage Precautions:
- Ensure correct mounting pitch gap when connecting two end-matched gear racks together.
- Maintain correct center distance and parallel alignment between the driving gear (pinion) and gear rack.
Straight Gear Racks vs Helical Gear Racks
|
Feature |
Straight Gear Rack |
Helical Gear Rack |
|
Load Capacity |
Standard load rating |
30%–40% Higher load capacity |
|
Noise Level |
Moderate noise at high speeds |
Extremely Quiet & Smooth running |
|
Installation Complexity |
Simple axial alignment |
Requires precise axial direction setup |
|
Cost Efficiency |
Lower manufacturing cost |
Premium performance choice |
How to Cooperate With Us
Seamless OEM Gear Rack Procurement Process
Submit Requirements
Share your rack length, module, precision requirement (DIN class), and drawing.
Engineering Evaluation
Our tech team optimizes the tooth profile design and provides an instant quote.
Sample Verification
Fast sample dispatch for fit and pitch tolerance check.
Mass Manufacturing & Dispatch
Automated production with full pitch inspection report before export delivery.
FAQ
Q: What is a gear rack and pinion drive system?
A: It is a linear actuator system where a rotating gear (pinion) meshes with a linear gear rack to convert rotational torque into smooth linear motion.
Q: What modules of gear racks does Huihuang produce?
A: We produce gear racks from Module 1.0 up to Module 10.0 in standard and custom profiles.
Q: What is the maximum length of a single gear rack section?
A: Standard single-piece lengths are 500mm, 1000mm, and 2000mm. Custom lengths can be produced upon request.
Q: Can your gear racks be joined together for long-distance travel?
A: Yes, we provide "continuous jointable / end-matched" gear racks specifically cut so two sections fit together seamlessly without interrupting pitch distance.
Q: What precision classes do you offer for gear racks?
A: We manufacture milled gear racks (DIN 8 to DIN 10) and high-precision ground gear racks (DIN 6 to DIN 7).
Q: What materials are available for gear racks?
A: Common materials include C45 steel, 42CrMo, 304 stainless steel, and 316 stainless steel.
Q: Do you offer tooth induction hardening for gear racks?
A: Yes, we provide high-frequency tooth hardening reaching HRC 50–55 to dramatically improve wear resistance.
Q: How do you prevent gear racks from warping during heat treatment?
A: We utilize specialized long-bed straightening hydraulic presses and stress-relieving processes to ensure straightness post-hardening.
Q: What mounting hole patterns can you machine on the gear rack?
A: We can drill standard counterbored holes, threaded side holes, or custom mounting configurations according to your CAD drawings.
Q: Should I choose a helical gear rack or a straight gear rack?
A: Helical racks offer smoother motion, less noise, and higher force transmission for high-speed CNC machines; straight racks are simple and cost-effective.
Q: Can you supply matched pinions/gears for your racks?
A: Yes, we manufacture both the gear rack and the mating gear (pinion) to ensure perfect meshing and backlash control.
Q: How do you package long gear racks to prevent bending during shipping?
A: Racks are coated with rust preventive oil, wrapped, strapped to sturdy iron frames or packed in solid export wooden boxes.
Q: What is the lead time for standard vs. custom gear racks?
A: Standard size racks ship within 7–10 days; customized racks take about 20–25 days.
Q: What surface finish choices are available?
A: Natural ground finish, black oxide, zinc plating, or anti-corrosion painting.
Q: How do I measure pitch distance when installing continuous racks?
A: Use a reverse tooth gauge block (a piece of matching rack inverted) bridging the joint during bolt tightening to ensure precise tooth pitch alignment.
Q: Are stainless steel gear racks available for food/chemical environments?
A: Yes, we offer 304 and 316 stainless steel gear racks for anti-corrosion and food-grade machinery applications.
Q: Do you offer custom round gear racks?
A: Yes, we produce round shaft gear racks commonly used in vertical lifting mechanisms and manual press machines.
Q: Can you quote based on CAD files?
A: Absolutely! Send us your 2D (DWG/PDF) or 3D (STEP/IGS) files for a precise factory direct quote.
Q: What inspection reports are included with the shipment?
A: Material certificates, dimensional inspection reports, and hardness test reports can be provided upon request.
Q: Why import gear racks directly from Huihuang Chain?
A: As a direct manufacturer, we offer competitive factory pricing, strict DIN precision quality control, fast turnaround times, and custom OEM support.
Anhui Huihuang Chain Transmission Co., Ltd. is one of the most professional rack manufacturers and suppliers in China, also supports high quality customized service. Please feel free to buy discount rack made in China here from our factory. Welcome to contact us for pricelist and free sample.