GC Series Coupling
GC Series Coupling
Product descriptions
The GC Aluminum Alloy Bellow Coupling Series is the critical link in high-performance motion control. It features a unique, thin-walled, stainless steel metallic bellow expertly joined to low-inertia, high-strength aluminum alloy hubs.
Engineered for extreme accuracy, the GC Series transmits torque with absolute fidelity while its bellows structure simultaneously and effortlessly compensates for all shaft misalignments (angular, parallel, and axial).
It is the top choice for connecting servo motors, stepper motors, and encoders to ball screws and other precision mechanisms, guaranteeing high response, minimal inertia, and true zero-backlash power transfer.
| Product's name | Motor coupling encoders |
| Material | Aluminium |
| Maximum Speed(rpm) | 3200-11000 |
| Diameter | 19-82mm |
|
Product Package |
a. Plastic bag with box case or wooden case. b. According to our customer's request. |
Operating Principles
The functionality of the GC Aluminum Alloy Bellow Coupling is rooted in a single, elegant principle: functioning as a torsionally rigid spring that dynamically manages system imperfections.
1. Torque Transmission
The metallic bellow is rigidly connected to both the motor (input hub) and the load (output hub). Due to the inherent, immense torsional stiffness of the bellow's structure, any rotation on the input shaft is immediately and precisely transferred to the output shaft. This direct, instantaneous connection eliminates all rotational play, guaranteeing the high-fidelity transmission required for sensitive positioning systems.
2. Geometric Deviation
The key is the bellow's engineered flexibility. When the input and output shafts are misaligned (angular, parallel, or axial), the thin, corrugated walls of the bellow flex, compress, or expand accordingly. Crucially, this flexing action absorbs the geometric error without generating significant reaction forces (side loads), thus protecting the precision bearings in the motor and load mechanisms.
3. Clamping Integrity
To maintain a completely rigid system, the hubs must be securely fastened to the shafts. In high-performance applications, a clamp-style hub is used. This mechanism compresses evenly around the shaft, creating a powerful friction lock that eliminates any micro-play or backlash between the hub and the shaft bore. This final step ensures the entire drive path operates as one, unified, non-moving component.
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