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    5-10mm Stainless Steel Bellows Coupling

    Buy a 5 to 10mm stainless steel bellows coupling online, it has a rated torque of 2.2 Nm and a rated speed of 7600 rpm. Stainless steel bellows coupling is mainly used in small power precision machinery and control mechanism which requires compact structure and high transmission accuracy.
    SKU: ATO-BC-510
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    Delivery date: 6-12 days

    Low price stainless steel bellows coupling shaft diameter comes with a size of 5 to 10mm, outer diameter of 20mm, and length of 32mm. This flexible coupling is simple in construction, easy to machine and install, and provides excellent performance and reliability even in the most demanding applications.


    Model ATO-GRCG-20x32
    Rated Torque 2.2 Nm
    Allowable Eccentricity 0.15mm
    Allowable Deflection 1.5°
    Allowable Axial Misalignment +0.3-1
    Allowable Speed 7600 rpm
    Static Torsional Stiffness 220 Nm/rad
    Moment of Inertia 2.2x10-6
    Weight 36g

    Dimension (unit: mm)

    Bellows couplings dimension

    d1/d2 ΦD L L1 L2 L3 ΦN F M Tightening Torque
    5-6-6.35-7-8-9-9.525-10 20 32 7.2 2.8 2 6.5 3.5 M3 1.5 Nm

    Keyway Machining Dimensions Comparison Table

    Keyway machining standard drawing

    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 2x2
    φ8-φ10 3 ±0.0150 1.4 3x3
    φ10.1-φ12 4 1.8 4x4
    φ12.1-φ17 5 2.3 5x5
    φ17.1-φ22 6 ±0.0180 2.8 6x6
    φ22.1-φ30 8 3.3 ±0.20 8x8
    φ30.1-φ38 10 ±0.0215 3.3 10x10
    φ38.1-φ44 12 3.8 12x12
    φ44.1-φ50 14 4.3 14x14
    φ50.1-φ58 16 4.4 16x16
    φ58.1-φ65 18 4.4 18x18


    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.

    Bellows couplings applications

    Tips: What are the materials typically used in the manufacturing of bellows couplings?

    Bellows couplings are typically made of materials that are both strong and flexible, as they are designed to transfer torque between two rotating shafts while compensating for any misalignment. Some of the most commonly used materials for manufacturing bellows couplings include:

    • Stainless steel: Stainless steel is a popular choice for bellows couplings due to its high strength, durability, and corrosion resistance. It is also
      able to withstand high temperatures, making it suitable for use in a wide range of industrial applications.
    • Titanium: Titanium is another popular material for bellows couplings due to its high strength-to-weight ratio and excellent corrosion resistance. It is also biocompatible, making it ideal for use in medical and dental applications.
    • Inconel: Inconel is a nickel-based alloy that is known for its high temperature resistance and excellent corrosion resistance in harsh environments. It is often used in aerospace and industrial applications.
    • Aluminum: Aluminum is a lightweight material that is often used in bellows couplings for applications that require high-speed rotation. It is also corrosion-resistant, making it suitable for use in humid or corrosive environments.
    • Brass: Brass is a copper-based alloy that is often used in bellows couplings for its excellent thermal conductivity and corrosion resistance. It is also easily machinable, making it a cost-effective option for many applications.
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