Metal Bellows Couplings GWB AK

Metal bellows couplings from the 'AK' series have been designed especially for the backlash-free transmission of high torques of up to 5,000 Nm. The elements are mounted on driver and driven components with tapered clamping bushings. Depending on the required size, the coupling will be produced with hubs made of aluminum or stainless steel. In addition, AK guarantees for perfect concentric running.

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GWB AK

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Size	L mm	d_1min mm	d_1max mm	B mm	T Nm	n_max 1/min	ΔK_a mm	ΔK_w Grad	ΔK_r mm	D_G1 mm	T_A1 Nm
30	52	9	20	56	36	11000	0,4	1,0	0,1	4	3
30	60	9	20	56	36	11000	0,5	1,5	0,2	4	3
60	63	12	25	66	72	9100	0,4	1,0	0,1	6	8,5
60	73	12	25	66	72	9100	0,5	1,5	0,2	6	8,5
80	79	15	35	82	96	7000	0,4	1,0	0,2	6	10
80	91	15	35	82	96	7000	0,5	1,5	0,2	6	10
150	79	15	35	82	180	7000	0,4	1,0	0,2	6	14
150	91	15	35	82	180	7000	0,5	1,5	0,2	6	14
200	80	15	35	90	240	6700	0,4	1,0	0,2	6	14
200	80	35,1	42	90	240	6700	0,4	1,0	0,2	6	14
200	93	15	35	90	240	6700	0,5	1,5	0,2	6	14
200	93	35,1	42	90	240	6700	0,5	1,5	0,2	6	14
300	93	15	42	110	360	5200	0,4	1,0	0,2	8	18
300	93	30	50	110	360	5200	0,4	1,0	0,2	8	18
300	104	15	42	110	360	5200	0,5	1,5	0,2	8	18
300	104	30	50	110	360	5200	0,5	1,5	0,2	8	18
500	102	24	50	122	600	4600	0,5	1,0	0,2	8	26
500	102	40	55	122	600	4600	0,5	1,0	0,2	8	26
500	113	24	50	122	600	4600	1	1,5	0,2	8	26
500	113	40	55	122	600	4600	1,0	1,5	0,2	8	26
800	170	30	60	157	800	3700	1	1,5	0,2	16	50
800	170	60,1	70	157	800	3700	1,0	1,5	0,2	16	50
1400	170	35	60	157	1400	3700	1	1,5	0,2	16	80
1400	170	60	70	157	1400	3700	1,0	1,5	0,2	16	80
3000	191	50	70	199	3000	2800	1	1,5	0,2	16	130
3000	191	70,1	80	199	3000	2800	1,0	1,5	0,2	16	130
5000	199	60	70	250	5000	2800	1	1,5	0,2	16	210
5000	199	70,1	90	250	5000	2800	1,0	1,5	0,2	16	210

Size	L inch	d_1min inch	d_1max inch	B inch	T ft-lbs	n_max rpm	ΔK_a inch	ΔK_w degree	ΔK_r inch	D_G1 mm	T_A1 ft-lbs
30	2.047	0.354	0.787	2.205	27	11000	0.016	1.0	0.004	4	2.2
30	2.362	0.354	0.787	2.205	27	11000	0.020	1.5	0.008	4	2.2
60	2.480	0.472	0.984	2.598	53	9100	0.016	1.0	0.004	6	6.3
60	2.874	0.472	0.984	2.598	53	9100	0.020	1.5	0.008	6	6.3
80	3.110	0.591	1.378	3.228	71	7000	0.016	1.0	0.008	6	7.4
80	3.583	0.591	1.378	3.228	71	7000	0.020	1.5	0.008	6	7.4
150	3.110	0.591	1.378	3.228	133	7000	0.016	1.0	0.008	6	10.0
150	3.583	0.591	1.378	3.228	133	7000	0.020	1.5	0.008	6	10.0
200	3.150	0.591	1.378	3.543	177	6700	0.016	1.0	0.008	6	10.0
200	3.150	1.382	1.654	3.543	177	6700	0.016	1.0	0.008	6	10.3
200	3.661	0.591	1.378	3.543	177	6700	0.020	1.5	0.008	6	10.0
200	3.661	1.382	1.654	3.543	177	6700	0.020	1.5	0.008	6	10.3
300	3.661	0.591	1.654	4.331	266	5200	0.016	1.0	0.008	8	13.0
300	3.661	1.181	1.969	4.331	266	5200	0.016	1.0	0.008	8	13.3
300	4.094	0.591	1.654	4.331	266	5200	0.020	1.5	0.008	8	13.0
300	4.094	1.181	1.969	4.331	266	5200	0.020	1.5	0.008	8	13.3
500	4.016	0.945	1.969	4.803	443	4600	0.020	1.0	0.008	8	19.0
500	4.016	1.575	2.165	4.803	443	4600	0.020	1.0	0.008	8	19.2
500	4.449	0.945	1.969	4.803	443	4600	0.039	1.5	0.008	8	19.0
500	4.449	1.575	2.165	4.803	443	4600	0.039	1.5	0.008	8	19.2
800	6.693	1.181	2.362	6.181	590	3700	0.039	1.5	0.008	16	37.0
800	6.693	2.366	2.756	6.181	590	3700	0.039	1.5	0.008	16	36.9
1400	6.693	1.378	2.362	6.181	1033	3700	0.039	1.5	0.008	16	59.0
1400	6.693	2.362	2.756	6.181	1033	3700	0.039	1.5	0.008	16	59.0
3000	7.520	1.969	2.756	7.835	2213	2800	0.039	1.5	0.008	16	96.0
3000	7.520	2.760	3.150	7.835	2213	2800	0.039	1.5	0.008	16	95.9
5000	7.835	2.362	2.756	9.843	3688	2800	0.039	1.5	0.008	16	155.0
5000	7.835	2.760	3.543	9.843	3688	2800	0.039	1.5	0.008	16	154.9

Images & Drawings

Dimensions

Characteristics

Backlash-free transmission of torque
High torsional stiffness, precision of transmission of rotational angle
Different torsional stiffness
Compact design, low moment of inertia
Metal bellows made of stainless steel
Simple and safe assembly
Compensation of radial, axial and angular misalignment
Free of wear, maintenance-free, no downtimes
Not sensitive to temperatures between -30°C and + 100°C
Nominal torques between 0,1 – 5000 Nm

Advantages

100% inspection and traceability through individual marking
Higher torques at same dimensions
Compact design
Extended bore ranges
Customer-specific solutions
Higher safety in application, e.g. no wrong screw tightening torques

Backlash-free Metal Bellows Couplings are used in the sector of mechanical engineering, where a torque or a rotary motion has to be transmitted from shaft to shaft in highest accuracy of angle.