precision wedge mounts bolt-through (BT)

version

bottom NBR5514
plain
top milled flat, lacquered

on request with screw, nut, washer, screwhead isolation disc (WA) and dowel

good to know:

in case of insufficient machine mass, the dynamic intrinsic frequency can be reduced
by adjusting the mechanical pre-tension

suitable for:

passive isolation e.g. with
- machines with high gravity centre
- metrology gear
- scales
- dosage units
- optical devices
critical storey installations

type	article number	load (daN)	L (mm)	B (mm)	H (mm)	Ni (mm)	SW (a/i)	c (mm)	d (mm)	drill hole (Ø mm)	mass (kg)
FK 02/BT/NBR5514	8005 0003	460	115	80	51	8	17/8	45	15	14	1,91
FK 04/BT/NBR5514	8009 0003	660	115	115	55	9	19/10	50	24	18	3,02
FK 05/BT/NBR5514	8012 0003	780	125	125	52	9	19/10	50	20	18	3,60
FK 07/BT/NBR5514	8016 0003	1120	150	150	61	12	22/12	60	23	18	5,85
FK 07/H/BT/NBR5514	8019 0003	1120	150	150	71	12	22/12	60	23	18	7,26
FK 08/BT/NBR5514	8022 0003	1250	160	160	63	10	24/14	75	25	18	7,25
FK 10/BT/NBR5514	8025 0003	2000	200	200	60	10	24/14	75	27,5	22	10,92
FK 10/H/BT/NBR5514	8028 0003	2000	200	200	88	20	27/14	75	27,5	22	16,10
FK 11/BT/NBR5514	8031 0003	2750	220	250	88	20	27/14	125	62	24	22,26
FK 12/BT/NBR5514	8034 0003	4120	250	330	88	16	27/14	135	117,5	28	33,62
FK 13/BT/NBR5514	8037 0003	6000	300	400	88	20	27/14	124	70/127	28	42,91

schematic drawing of a bolt-through action machine mount, in the view from the top with two holes in the top and bottom part, and in the side view with a medium-thickness elastomer with smooth surface for passive vibration isolation at the bottom and a fastening screw with a screwhead isolation disc at the top screw end, passing through the bottom part

precision wedge mounts bolt-through (BT) - assembly instruction

We kindly ask to read the below carefully prior to assembly / installation of the precision wedge mounts.

The load data given in the precision wedge mount catalogue are valid for static load.

Height adjustment under load can be facilitated with highly reduced torque by adjusting from the top-most levelling height of the wedge mount downwards and thus making use of gravity. Prior to assembly / installation, we recommend to adjust the wedge mount to the top-most levelling height. In operation, the ideal levelling height to be achieved is the middle levelling height.

All parts have to be aligned interlockingly with their respective guide keys and grooved keyways.

The precision wedge mounts bolt-through (BT) are designed for anchoring of the machine in the ground. Depending on the application, the bottom is equipped with a dampening or non-slip protection board of various shorehardness and optional surface structure.

In operation, the wedge segment with the dampening or non-slip protection board faces downwards. In the bolt-through version, both threads in the bottom wedge segment are drilled out. One of the two drill holes is used for insertion of the anchoring screw.

The bolt-through screw must be fastened to the machine frame only after completion of the levelling process. Non-adherance to the above will result in the destruction of the middle wedge.

The application of an elastomer board at the bottom effects vibration isolation or vibration dampening in regard to the downward amplitude. The upward amplitude is checked with a screwhead isolation disc. For the bolt-through version, this screwhead isolation disc is an indispensable accessory, and it is mandatory to install in such a fashion, that the machine frame is bracketed between wedge mount and screwhead isolation disc, as depicted. In delicate applications, where the avoidance of bridgeing of structure-borne noise is paramount, the insertion of an isolation tube or isolation tape at the thread shaft is required.

As described above, height adjustment is facilitated starting from the top-most levelling height, proceeding downwards.