Description
High precision bellows coupling has a rated torque of 1.2 Nm and a speed of 9400 rpm, with shaft diameters ranging from 4 to 8 mm. Flexible bellows couplings are widely used in medical equipment, test benches, wind turbines, and servo shafts in machine tools.
Specification
| Model | ATO-GRCG-16×27 |
| Rated Torque | 1.2 Nm |
| Allowable Eccentricity | 0.1mm |
| Allowable Deflection | 1.5° |
| Allowable Axial Misalignment | +0.3-1 |
| Allowable Speed | 9400 rpm |
| Static Torsional Stiffness | 150 Nm/rad |
| Moment of Inertia | 8.0×10-7 |
| Weight | 26g |
Dimension (unit: mm)
| d1/d2 | ΦD | L | L1 | L2 | L3 | ΦN | F | M | Tightening Torque |
| 4-5-6-6.35-7-8 | 16 | 27 | 7.5 | 2 | 8 | 13.5 | 3 | M2.5 | 1 Nm |
Keyway Machining Dimensions Comparison Table
| Shaft Size | Keyway Standard Processing Size | Keyway Size | |||
| d1/d2 | b | t | bxh | ||
| Slot Width | Tolerance | Grooving Depth | Tolerance | ||
| φ6-φ7.9 | 2 | ±0.0125 | 1 | ±0.10 | 2×2 |
| φ8-φ10 | 3 | ±0.0150 | 1.4 | 3×3 | |
| φ10.1-φ12 | 4 | 1.8 | 4×4 | ||
| φ12.1-φ17 | 5 | 2.3 | 5×5 | ||
| φ17.1-φ22 | 6 | ±0.0180 | 2.8 | 6×6 | |
| φ22.1-φ30 | 8 | 3.3 | ±0.20 | 8×8 | |
| φ30.1-φ38 | 10 | ±0.0215 | 3.3 | 10×10 | |
| φ38.1-φ44 | 12 | 3.8 | 12×12 | ||
| φ44.1-φ50 | 14 | 4.3 | 14×14 | ||
| φ50.1-φ58 | 16 | 4.4 | 16×16 | ||
| φ58.1-φ65 | 18 | 4.4 | 18×18 |
Applications
Bellows couplings are commonly used in robotics, medical equipment, semiconductor manufacturing, and aerospace industries. Bellows couplings can transmit torque and rotational motion while compensating for misalignments, which makes them ideal for applications where high accuracy and repeatability are critical.
Tips: What is a bellows coupling?
A bellows coupling is a type of flexible coupling used to transmit torque and motion between two rotating shafts that are slightly misaligned or not precisely aligned. It consists of a series of thin metal bellows arranged in a circular shape, with two flanges or hubs attached to each end.
The bellows are made of thin metal sheets, usually stainless steel, that are welded together in a convoluted shape. This allows them to expand and contract, while maintaining their shape and stiffness, which makes them ideal for coupling applications.
When installed between two shafts, the bellows coupling allows for a small amount of misalignment or axial motion between them, while still transmitting torque with high accuracy and minimal backlash. It can also help to dampen vibration and shock loads, which can help to reduce wear and tear on the system.
Bellows couplings are commonly used in applications where precise motion control is required, such as robotics, CNC machines, and semiconductor manufacturing equipment. They are also used in aerospace, medical, and other industries where high reliability and precision are critical.
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