CNC machine Helical Tooth Rack and Pinion Gear

Rack and Pinion

As one of the rack and pinion manufacturers, suppliers, and exporters of mechanical products, We offer rack and pinion and many other products.

Please get in touch with us for details.

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Manufacturer supplier exporter of rack and pinion.


A standard gear rack is available, and a unique gear rack is as per your drawing or samples. Our precision spur helical gear racks are welcomed by many customers for their stable high quality, and competitive price.

1. Gear rack length: the longest is 4000mm without a joint. It can be joined to any size.
2. Surface: chromium plating, zinc (galvanized), black, quenching and tempering, etc.
3. Quality: stable and high: accumulated tolerance 0.1mm per 1000mm for standard quality; Accumulated tolerance 0.02mm per 1000mm for 4 sides ground. Prices for the above quality are very competitive for us.
4. Heat treatment: Tooth hardness can be hardened to HRC 40-55.

Rack and PinionĀ  SSGH Series

Rack and Pinion SHFQ Series

Product Name
Gear Rack Pinion for linear motion CNC machine Helical Tooth Rack and Pinion Gear
Grinding Milling
Module Number:
M1 1.25 1.5 2 3 4 5 6 8 10
ISO, DIN, ANSI, JIS, BS, and Non-standard.
Heat Treatment:
Tooth surface induction hardened
OEM & ODM Availability

Instruction of Rack Assembly

To assemble connected racks more smoothly, 2 ends of a standard rack would add half tooth which is convenient for next half tooth of next rack to be connected to a complete tooth. The following drawing shows how 2 racks connect and tooth gauge can control pitch position accurately.
With regards to connection of helical racks, it can be connected accurately by opposite tooth gauge.
1. When connecting racks, we recommend lock bores on the sides of rack first, and lock bores by the sequence of the foundation. With assembling the tooth gauge, pitch position of racks can be assembled accurately and completely.
2. Last, lock the position pins on 2 sides of rack; the assembly is completed.

Advantages of rack and pinion transmission

(1) Large transmission power

(2) Long life, stable operation and high reliability

(3) It can ensure a constant transmission ratio and can transmit motion between two shafts at any included angle

Gear Rack Application

mainly used in various mechanical transmission systems, like Automation Machine, CNC Machine, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Construction works and so on.