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Flexible Metric Bellow Coupling Bkl 40X51mm M5

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Address: No. 203, Gaotiantou, Liudao Industrial Park, Yaoguan Town, Wujin District, Changzhou City, Jiangsu Province

Contact name:Christina Liu

Changzhou TIANNIU Transmission Equipment Co., Ltd

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Flexible Metric Bellow Coupling Bkl 40X51mm M5

Country/Region	china
City & Province	changzhou jiangsu

Product Details

GR40X51 M5 Shaft Coupling Aluminum Bellows Setscrew For CNC Machine

Product introduction

Bellows coupling uses corrugated thin-walled pipe (bellows) to directly weld or bond with the two half couplings to transmit motion. The coupling has the advantages of simple structure, small overall dimension, convenient processing and installation and high transmission accuracy. It is mainly used in small power precision machinery and control mechanisms requiring compact structure and high transmission accuracy.

The elastic element of bellows coupling is precision metal bellows, which is divided into flexible series and rigid series. The flexible series has great elasticity and is often used in micro occasions such as encoders and sensors. The rigid series is mainly used in servo motors, CNC machine tools (machining centers) and other occasions.

Products Features

1. The bellows coupling has no clearance and high sensitivity

2. High elasticity, better protection of equipment

3. It can absorb vibration and compensate radial, angular and axial deviations at the same time

4. Oil stain resistance and strong corrosion resistance

5. Torsional rigidity, clockwise and counterclockwise rotation characteristics are exactly the same

6. Commonly used in CNC machine tools, indexing discs and other industrial machinery

Products Parameters

Product Drawings

Product Dimensions

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