FAULHABER launches GPT gearhead family with focus on torque, noise, and power
FAULHABER this week introduced its new GPT gearhead family, a lineup of drive components designed to deliver flexibility, improved power density, and competitive pricing. The Schönaich, Germany-based company said the series is engineered to pair with its existing GXR/SXR gearhead family of DC drives, while also enabling seamless combinations with a variety of standard motors, including the flat BXT brushless family and other brushless DC drives.
By allowing matched combinations of encoders, drives, and gearheads, FAULHABER noted that the components can be integrated compactly and with matching diameters, eliminating the need for additional connecting elements.
GPT series designed for high torques and load changes
The GPT gear series was developed specifically for applications requiring high torque. FAULHABER explained that up to six planets per stage enable a shorter overall length, delivering more power in a compact footprint. The planetary gears are constructed from hardened stainless steel with continuously welded connections, ensuring reliable transmission of high forces.
Available in diameters ranging from 14 to 42 mm (0.5 to 1.6 in.), the gearboxes are significantly shorter than comparable models of the same diameter. They are built to withstand constant load changes as well as abrupt or intense variations. For instance, the 42 GPT model can achieve an intermittent torque of up to 25 Nm. Depending on the variant, continuous torques range from 0.6 to 18 Nm, with speeds reaching up to 24,000 rpm.
A broad selection of evenly distributed reduction ratios — from 3:1 to 1437:1 — allows drive systems to be adapted to diverse applications, according to FAULHABER. Optimized component coordination and high-performance lubricants, along with a wide choice of output bearings, further enhance performance.
Low-noise series for collaborative applications
FAULHABER also developed a low-noise variant of the GPT family for applications where humans are in close proximity or multiple motors are used. The 22 GPT LN and 32 GPT LN models feature an input gear stage made of plastic gears, reducing noise levels by up to 10 dB compared to standard versions. Despite their quieter operation, they can transmit occasional peak torques of up to 4 Nm and 12 Nm, respectively.
The LN models operate across a wide temperature range from -30° to +110°C (-22° to 230°F) and maintain high efficiency even during frequent or sudden load changes. FAULHABER emphasized their strong price-performance ratio.
HT models for demanding environments
For environmental conditions requiring more robust variants, FAULHABER offers the HT series. With adapted geometry, these models handle higher loads, provide improved dynamics, and maximize performance. They are available with three or four gear stages, in numerous reduction ratios, and operate in a temperature range from -30° to +120°C (248°F). Sudden load changes or emergency stops do not compromise the long service life of the drives, according to the company.
Gear backlash ranges from 0.8° to 0.6°, depending on the model, enabling precise and repeatable positioning across a wide array of applications.
The source for this article is https://www.therobotreport.com/faulhaber-focuses-torque-noise-power-new-gpt-gearheads/.