Top 10 Best mechanical rack and pinion gears in 2026

Main highlights

Main highlights

• •Size - Model: 1.5 Mod; Length: 500mm/19.69"; Width: 20mm/0.79"; Height: 20mm/0.79"; Tooth Pitch: 4.71mm/0.19"; Tooth Depth: 3.38mm/0.13"
• •Material - The spur rack is made of 45# steel, which has high hardness, strength, and strong deformation resistance, it is more durable, longer lasting, and easier to process, install, and debug.
• •Feature - Racks are used to convert rotary motion into linear motion. The straight teeth of the rack are cut into one face of the square or circular section of the rod and fit with the pinion, which has the characteristics of mechanical simplicity, high load-carrying capacity, and unlimited length.
• •Application - Spur racks are paired with spur gears and are suitable for lifting mechanisms (vertical movement), horizontal movement, positioning mechanisms, stopping and allowing simultaneous rotation of multiple axes in industrial machinery.
• •Note - Only gears of the same type can be used with racks. For example, a 1M rack can be used with all 1M gears.

Main highlights

• •Model: 0.5 Mod; Size: 8mm x 8mm / 0.31" x 0.31"; Total Length: 500mm / 20"
• •Made of 45# carbon steel, it has better hardness, higher strength and resistance to deformation than ordinary A3 steel.
• •More durable and long lasting than nylon gear racks.
• •Suitable for most types of gears. Easy to use.
• •Good replacement for your equipment.

Main highlights

• •Fitment: Compatible with Simple Mechanical Application 20 Teeth
• •Material: Made of aluminum alloy and #45 steel.
• •Max torque rating: 5 N.M/ 3.6 ft.lbs.
• •Max rotation speed: 1000 rpm.
• •Specification: 15 mm/ 0.6" shaft, built-in 1.5 module 20 teeth bevel gears.

Main highlights

• •Pinion Gear: Model: 0.5 Mod; Teeth: 30T; Bore Size (Shaft Dia.): 6.35mm / 0.25"; Outer Dia. (Teeth Part): 16mm / 0.63"; Effective Teeth Length: 5mm / 0.2"; Step Size: 13mm x 5mm / 0.51" x 0.2" (D*H)
• •Brass Parts: The brass pinion gear has strong wear resistance, high strength, high hardness and chemical corrosion resistance.
• •Easy to Use: Be sure your RC motor shaft have the same diameter. Comes with set screws for each pinion gear, easy to install. Hardness of teeth surface: soft teeth surface.
• •Tips: Release the motor to install the pinion. Make sure to lock it on the flat part of the motor shaft.
• •Package Content: 1pcs x Pinion Gear, 2pcs x M3 Set Screws. Good pinion gear replacement for your equipment.

Main highlights

• •Module：0.5
• •Quantity：10Pcs
• •Material：Plastic
• •Size：Length 125mm/4.92",width 4mm,height 7mm,include 2 different size hole diameter 2.05mm/2.55mm
• •Application：0.5 Module Plastic gear connecting rod long strip rack gear pinion transmission rod for diy model toy,rc car,truck,robot parts,meet your diy project needs

Main highlights

• •Pinion Gear: Model: 0.5 Mod; Teeth: 28T; Bore Size (Shaft Dia.): 6mm / 0.24"; Outer Dia. (Teeth Part): 15mm / 0.59"; Effective Teeth Length: 5mm / 0.2"; Step Size: 12mm x 5mm / 0.47" x 0.2" (D*H)
• •45# Carbon Steel: Made of 45# carbon steel, the pinion gear has better hardness, higher strength and resistance to deformation than ordinary A3 steel.
• •Surface Treatment: Frequency hardened parts have higher wear resistance, higher strength and lower notch sensitivity. Blackened surface can effectively prevent rust and oxidation.
• •Easy to Use: Be sure your RC motor shaft have the same diameter. Comes with set screws for each pinion gear, easy to install. Hardness of teeth surface: hard teeth surface.
• •Tips: Release the motor to install the pinion. Make sure to lock it on the flat part of the motor shaft. Good pinion gear replacement for your equipment.

Main highlights

Main highlights

• •1. No tooth skipping or tooth slipping during operation, easy to use
• •2. Made of steel, high-frequency quenching of the tooth surface makes the chain less prone to wear and has a long service life
• •3. Beautiful appearance, no burrs, not easy to age, high load-bearing capacity, stable operation