6-12mm Stainless Steel Bellows Coupling

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$89.76

Low cost stainless steel bellows couplings have shaft diameters ranging from 6 to 12 mm, outer diameters of 25 mm, and lengths of 37 mm. With their compact size and lightweight design, ATO bellows shaft couplings are the ideal tool for servo shafts in machine tools, wood processing machinery, packaging machinery and many more high performance machines.

φd1 Inner Diameter Size (mm) *
φd2 Inner Diameter Size (mm) *

SKU: ATO-BC-2537

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Delivery date: 6-12 days

Overview

Compactly designed flexible stainless steel bellows couplings feature torque ratings of 3 Nm, allowable speeds of 6100 rpm, and shaft diameters ranging from 6 to 12 mm. Flexible bellows shaft couplings offer excellent accuracy, smooth operation and long service life, ideal for industrial and commercial applications.

Specification

Model	ATO-GRCG-25x37
Rated Torque	3 Nm
Allowable Eccentricity	0.15mm
Allowable Deflection	1.5°
Allowable Axial Misalignment	+0.5-1
Allowable Speed	6100 rpm
Static Torsional Stiffness	330 Nm/rad
Moment of Inertia	6.9x10-6
Weight	75g

Dimension (unit: mm)

d1/d2	ΦD	L	L1	L2	L3	ΦN	F	M	Tightening Torque
5-6-6.35-7-8-9-9.525-10-11-12	25	37	9.5	3	12	20.2	4.5	M3	1.5 Nm

Keyway Machining Dimensions Comparison Table

Shaft Size	Keyway Standard Processing Size				Keyway Size
d1/d2	b		t		bxh
d1/d2	Slot Width	Tolerance	Grooving Depth	Tolerance	bxh
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	±0.0180	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

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.

Bellows couplings applications

Tips: What are the advantages of using a bellows coupling over other types of couplings?

Bellows couplings offer several advantages over other types of couplings:

Zero backlash: Bellows couplings have a tight fit and can transmit torque without any play, making them ideal for applications that require precise positioning and motion control.
High torsional stiffness: The bellows design allows for high torsional stiffness, which means that the coupling can transmit torque with minimal deflection or deformation, resulting in accurate and repeatable positioning.
Compensation for misalignment: Bellows couplings can compensate for axial, radial, and angular misalignments between the shafts, reducing stress on the connected components and extending their life.
Low moment of inertia: The bellows design results in a low moment of inertia, making the coupling ideal for high-speed applications with frequent starts and stops.
Corrosion resistance: Bellows couplings are often made of stainless steel, which is highly resistant to corrosion, making them suitable for harsh environments.

Overall, bellows couplings offer a reliable and efficient method for transmitting torque in a wide range of applications, including robotics, automation, medical devices, and aerospace.

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