HARDWARE / PRODUCTAdded 23 Aug 2026

Helical Rack and Pinion Gear Set

Harmonic Drive
Helical Rack and Pinion Gear Set

Harmonic Drive engineers and manufactures high-precision rack and pinion gears for converting rotational movement into linear motion, utilizing cutting-edge technology and extensive experience.

Technical specifications

Helix angle
19.5283°
Rack heat treatment
Induction hardened and ground
Rack Module 2 Length
500 mm, 1000 mm
Rack Module 3 Length
500 mm, 1000 mm
Pinion heat treatment
Carburized and ground
Pinion Module 2 Number of teeth
35, 40, 45
Pinion Module 3 Number of teeth
31, 35, 40
HPG-32R/HPG-32A Module
2
HPG-50A Module
3
Backlash (Standard)
3 arc-min or less
Backlash (Optional)
1 arc-min or less
Gear Accuracy
JIS N5 class (equivalent to DIN Q6)

About

Harmonic Drive offers high-precision rack and pinion gears designed for converting rotational movement into linear motion, essential for efficient machine functioning. The product line includes two rack models, RK and JK, and three pinion-equipped gearhead models: HPG-32R, HPG-32A, and HPG-50A. These components are available as a kit, featuring the HPG series, a Harmonic Planetary® gearhead known for its low backlash. Key features include high positioning accuracy due to low-pitch error, low runout accuracy (15μm or less) for minimized backlash variation and vibrations, and low noise and vibration thanks to a grounded finish, making them suitable for demanding applications like medical equipment and electric cars. The gears are durable, wear-resistant, and offer high load-carrying capacity, design flexibility, energy-efficient transfer, environmental flexibility, reliable synchronization, smooth operation, and simple installation.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.harmonicdrive.net ↗

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