flexible bellows shaft coupling Aluminum alloy setscrew coupling-TIANNIU

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GR Aluminum alloy bellows setscrew coupling

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GR Aluminum alloy bellows setscrew coupling

>The material is aluminum alloy, and the middle bellows is made of stainless steel with excellent corrosion resistance >Laser welding is used between bellows and shaft sleeve, with zero rotation clearance, suitable for forward and reverse rotation >Bellows structure can effectively compensate radial, angular and axial deviation >Designed for servo motor stepper motor >Fastening method of setscrew

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GR Aluminum alloy bellows setscrew coupling

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Product Detail

Description:

The setscrew bellows shaft coupling consists of two hubs and a thin-walled metal tube, which are welded or bonded together. Stainless steel and nickel are the most commonly used metal tube materials, although many other materials are available. The nickel tube is finished by electrodeposition. This method first machined the solid mandrel into a corrugated shape, using nickel plating on the mandrel, and then the mandrel was chemically dissolved to produce the nickel bellows. This method can control the accuracy of bellows wall thickness and get thinner wall thickness than other methods. This thin-walled bellows gives the coupling high sensitivity and rapid response, making it ideal for use in very small and precise instrument applications.

Features:

>High torque rigidity and excellent sensitivity

>Maintenance free, super oil and corrosion resistance

>Zero turning clearance

>Clockwise and counterclockwise rotation characteristics are exactly the same

>Stainless steel bellows construction compensates angular and axial deviation

>Commonly used with servo motor, stepper motor connection

>Main material: aluminum alloy

>Installation mode: top wire fixed type, clip fastening finalize the design, bulging sleeve fixed type

flexible bellows coupling bellows shaft coupling

model parameter	common bore diameter d1,d2	ΦD	L	LI	L2	L3	N	F	M	tightening screw torque (N.M)
GR-16x27	4,5,6,6.35,7,8	16	27	7.5	2	8	13.5	3	M3	0.7
GR-20x32	5,6,6.35,7,8,9,9.525,10,11,12	20	32	7.2	2.8	12	18	3.5	M3	0.7
GR-22.5x34	5,6,6.35,7,8,9,9.525,10,11,12	22.5	34	8.05	2.8	12.3	20.2	4.5	M4	1.7
GR-25x37	6,6.35,7,8,9,9.525,10,11,12	25	37	9.5	3	12	20.2	4.5	M4	1.7
GR-32x42	8,9,10,11,12,12.7,14,15	32	42	8	4	18	27.2	5.5	M5	4
GR-40x51	8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20	40	51	9.5	6	20	34.5	5.5	M5	4
GR-55x57	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25	55	57	9	6	27	51.9	6.25	M6	7
GR-65x81	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38	65	81	19.5	7	28	60.5	8.9	M6	7

model parameter	Rated torque (N.M)*	allowable eccentricity (mm)*	allowable deflection angle (°)*	allowable axial deviation (mm)*	maximum speed rpm	static torsional stiffness (N.M/rad)	moment of inertia (Kg.M²)	Material of shaft sleeve	surface treatment	weight （g）
GR-16x27	0.8	0.1	2	+ 0.4 -1.2	20000	150	7.9x10^-7	High strength aluminum alloy	Anodizing treatment	8
GR-20x32	1.5	0.1	2	+ 0.6 -1.8	18000	220	2.0x10^-6			13
GR-22.5x34	1.8	0.15	2	+ 0.6 -1.8	16000	300	6.2x10^-6			22
GR-25x37	2.0	0.15	2	+ 0.6 -1.8	15000	330	6.7x10^-6			30
GR-32x42	2.5	0.2	2	+ 0.8 -2.5	11000	490	2.0x10^-5			53
GR-40x51	6.4	0.3	2	+ 0.8 -2.5	10000	530	2.1x10^-5			85
GR-55x57	12	0.3	2	+ 0.8 -2.5	9000	860	2.8x10^-5			170
GR-65x81	18	0.2	2	+ 0.7 -2.5	4500	900	2.3x10^-5			280