Metal Bellow Couplings BK- Servo- and 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 - 1500 Nm

Data table and downloads bellows coupling BK8 compact design series 15 - 1500 Nm

Model BK8		Series
Model BK8		15	60	150	300	1500
Robot flange centering diameter (mm)		40h7	63h7	80h7	100h7	160h7
Robot flange bolt circle / thread Ų (mm)		31.5 8x M5	50 8x M6	63 12x M6	80 12 M8	125 12x M10
Max. torque* (Nm)		50	210	380	750	2600
Length -2 (mm)	A₁	49	67	72	90	140
Length -2 (mm)	A₂	68	97	100	128	190
Outher diameter (mm)	B₁	49	66	82	110	157
Flange diameter (mm)	B₂	63.5	86.5	108	132	188
Fit length (mm)	C₁	16.5	23	27.5	34	55
Inner diameter possible from Ų to Ų H7 (mm)	D₁	12-28	14-35	19-42	24-60	50-80
Hub bolt circle (mm)	DL	56.5	76	97	120	170
Fastening threads	DL	10x M4	10x M5	10x M6	12x M6	16x M8
Fastening screws ISO 4762	E	1x M5	1x M8	1x M10	1x M12	2x M20
Tightening torque (Nm)	E	8	45	80	120	470
Distance (mm)	G	6.5	9.5	11	13	22.5
Approx. weight (kg)	I	0.3	0.7	1	2.8	10
Moment of interia (10^-3 kgm²)	J_ges	0.15	0.65	1.3	5.5	45
axial (mm)	max.	1	1.5	2	2.5	3
lateral (mm)	max.	0.25	0.25	0.25	0.25	0.25
angular (degrees)	max.	1	1	1	1	1
Downloads		15	60	150	300	1500
3D-STEP (ZIP folder)

*Max. torque transmittable for a short-term period on max. diameter.

Gearhead without flange The bolt circle will be drilled acc. to gear head.

Order example for bellows coupling BK8 Required information for servo bellows coupling model BK8

Last update: 2008-05-15