Metal Bellows Couplings BK- rigid Shaft Couplings

Please select a Metal Bellows Coupling:

MODEL SERIES BK	BK1	BK2 / BKC / BKL	BKH	BK3	BK4	BK5	BK6	BK7	BK8
	General \| Technical information \| 2D and 3D download

Series from 15 - 10,000 Nm

Data table and Downloads Bellows Coupling BK1 Series 15 - 10,000 Nm

Model BK1		Series
		15		30		60		150		200		300		500		800	1500	4000	6000	10000
Rated torque (Nm)	T_KN	15		30		60		150		200		300		500		800	1500	4000	6000	10000
Overall length (mm)	A	30	37	36	44	43	53	50	62	53	65	56	70	64	77	81	100	145	138	150
Outer diameter of bellow (mm)	B	49		55		66		81		90		110		124		133	157	200	253	303
Fit length thread depth (mm)	C	7.5		10		11		13		14.5		15		16		18	22	30	30	36
Inner diameter Ø H7 (mm)	D	25		28		38		50		58		65		70		75	85	100	145	190
6x fastening threads	E	M5		M5		M6		M6		M6		M8		M8		M10	M16	M20	8x M20	8x M24
Hub bolt circle ± 0.2 (mm)	F	35		37		46		62		70		80		94		90	110	140	190	234
Outer diameter f7 (mm)	G	49		55		66		81		90		110		122		116	140	182	235	295
Mass moment of inertia (10^-3 kgm²)	J_ges	0.07	0.08	0.14	0.15	0.30	0.32	0.90	0.95	1.30	1.40	1.95	2.10	3.0	3.4	4.3	10.6	46	132	350
Approx. weight (kg)		0.15		0.2		0.3		0.6		0.8		1.35		1.8		1.9	3.3	8.9	13.9	23.7
Torsional stiffness (10³ Nm/rad)	C_T	20	15	39	28	76	55	175	110	191	140	450	350	510	500	780	1304	3400	5700	10950
axial (mm)	max.	1	2	1	2	1.5	2	2	3	2	3	2.5	3.5	2.5	3.5	3.5	3.5	3.5	3	3
lateral (mm)	max.	0.15	0.2	0.2	0.25	0.2	0.25	0.2	0.25	0.25	0.3	0.25	0.3	0.3	0.35	0.35	0.35	0.4	0.4	0.4
angular (degrees)	max.	1	1.5	1	1.5	1	1.5	1	1.5	1	1.5	1	1.5	1	1.5	1.5	1.5	1.5	1.5	1.5
axial spring stiffness (N/mm)	C_a	25	15	50	30	72	48	82	52	90	60	105	71	70	48	100	320	565	1030	985
lateral spring stiffness (N/mm)	C_r	475	137	900	270	1200	420	1550	435	2040	610	3750	1050	2500	840	2000	3600	6070	19200	21800
Downloads Short Version		15		30		60		150		200		300		500		800	1500	4000	6000	10000
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)
Downloads Long Version		15		30		60		150		200		300		500		800	1500	4000	6000	10000
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)

(1Nm = 8.85 in lbs)

Order example for Bellow Coupling BK1 Required information to order Bellows Coupling model BK1.

Last update: 04-20-2006