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25.09.2014 | We invite you to visit our stand at the exhibition "Mashex-2014"!

Get an e-ticket to the exhibition "Mashex-2014"Dear Partners and Clients!

We invite you to visit our stand №C261, hall №3 at the 17th international exhibition of equipment and technologies of metalworking and working of composite materials "Mashex-2014", which will be organized from 28 to 31 October in the exhibition center "Crocus Expo", pavilion №1, Moscow, Russia.

24.09.2014 | We invite you to visit our stand at the exhibition "Stankostroenie-2014"!

Get an e-ticket to the exhibition "Stankostroenie-2014"Dear Partners and Clients!

We invite you to visit our stand №В222 , pavilion №1, hall №2 at the international specialized exhibition "Stankostroenie-2014", which will be organized from 14 to 17 October, 2014 in the exhibition center "Crocus Expo" (Moscow, Russia).



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Supports for ballscrew

The support bearings are always needed for fixing of the ballscrews on its axis and the free screw rotation around its axis. The supports for ballscrews are classified by ballscrew mounting  - horizontal (support types - BK, BF), vertical (support types - FK, FF).


Supports for ballscrews

The support bearings for ballscrews. For horizontal ballscrew mounting - BK, BF series are used, and for vertical ballscrew mounting - FK, FF series are used.


Specifications of support bearings for horizontal ballscrew mounting

The supports of BK and BF types are used for horizontal ballscrew mounting. The support bearings of BK type have an angular contact bearing, and they are used for the rigid fixation of one ballscrew end on the motor side, this support type is called a fixed. The support bearings of BF type have a radial bearing, which can move in a saddle of the housing along the ballscrew axis, this type of support is called free or floating. The property of bearing movement parallel to the axis of the free support BF is necessary for compensation of the screw length changes while it's operating. The changing of screw length during the operations under the load arises due to thermal expansion of the metal, and the screw elastic deformation along the axis of its rotation. Below you can view and download the catalog of dimensions and characteristics of the fixed and free support bearings for ballscrews.

BK series

 

Support for ballscrews BK series

 

 

Model

d1

L

L1

L2

L3

C1

C2

B

H

b+0.02

h+0.02

B1

H1

E

P

d2

X

Y

Z

BK10 10 25 5 29 5 13 6 60 39 30 22 34 32.5 15 46 5.5 6.6 10.8 5
BK12 12 25 5 29 5 13 6 60 43 30 25 34 32.5 18 46 5.5 6.6 10.8 1.5
BK15 15 27 6 32 6 15 6 70 48 35 28 40 38 18 54 5.5 6.6 11 6.5
BK17 17 35 9 44 7 19 8 86 64 43 39 50 55 28 68 8.6 9 14 8.5
BK20 20 35 8 43 8 19 8 88 60 44 34 52 50 22 70 6.6 9 14 8.5
BK25 25 42 12 54 9 22 10 106 80 53 48 84 70 33 85 9 11 17.5 11
BK30 30 45 14 61 9 23 11 128 86 64 51 76 78 33 102 11 14 20 13
BK35 35 50 14 67 12 25 12 140 96 70 52 88 79 35 114 11 14 20 13
BK40 40 61 18 76 15 33 14 160 110 80 60 100 90 37 130 14 18 26 17.5

BF series

 

Support for ballscrews BF series

Model

d1

L

B

H

b+0.02

h+0.02

B1

H1

E

P

d2

X

Y

 Z

BF-10 8 20 60 39 30 22 34 32,5 15 46 5,5 6,6 10,8 5
BF-12 10 20 60 43 30 25 34 32,5 18 46 5,5 6,6 10,8 1,5
BF-15 15 20 70 48 35 28 40 38 18 54 5,5 6,6 11 6,5
BF-17 17 23 88 64 43 39 50 55 28 68 6,6 9 14 8,5
BF-20 20 26 88 60 44 34 52 50 22 70 6,6 9 14 8,5
BF-25 25 30 106 80 53 48 64 70 33 85 9 11 17,5 11
BF-30 30 32 128 89 64 51 76 78 33 102 11 14 20 13
BF-35 35 32 140 96 70 52 88 79 35 114 11 14 20 13
BF-40 40 37 160 110 80 60 100 90 37 130 14 18 26 17,5

Specifications of support bearings for vertical ballscrew mounting.

The supports of FK and FF types are used for vertical ballscrew mounting. The support bearings of FK type are fixed supports that can be used for fixation of the one ballscrew end on the motor side. Free support bearings of FF type have a radial bearing, which can move in a saddle of the housing along the ballscrew axis. The property of bearing movement parallel to the axis of the free support FF is necessary for compensation of the screw length changes while it's operating under the load. During the normal operations under the load ballscrew undergoes the elastic deformation and thermal reversible deformation.

Серия FK

Ballscrew supports for vertical mounting

 

Model

d1

L

H

F

E

Dg6

A

PCD

B

L1

T1

X

Y

Z

FK-5 5 16,6 6 10,5 18,5 20 34 26 26 3,4 3,5 3,4 6,5 4
FK-6 6 20 7 13 22 22 36 28 28 5,5 3,4 3,4 6,5 4
FK-8 8 23 9 14 23 28 43 35 35 7 4 3,4 6,5 4
FK-10 10 27 10 17 29,5 34 52 42 42 7,5 5 4,5 8 4
FK-12 12 27 10 17 29,5 36 54 44 44 7,5 5 4,5 8 4
FK-15 15 32 15 17 36 40 63 50 50 10 6 5,5 9,5 6
FK-17 17 45 22 23 47 50 77 62 61 11 9 6,6 11 10
FK-20 20 52 22 30 50 57 85 70 68 8 10 6,6 11 10
FK-25 25 57 7 30 60 63 98 80 79 13 10 9 15 13
FK-30 30 62 10,5 32 61 75 117 95 93 11 12 11 17,5 15

 

Серии FF

 

Ballscrew supports for vertical mounting

 

Model

L

H

F

E

Dg6

A

PCD

B

X

Y

Z

FF-6 6 10 6 4 22 36 28 28 3,4 6,5 4
FF-10 8 12 7 5 28 43 35 35 3,4 6,5 4
FF-12 10 15 7 8 24 52 42 42 4,5 8 4
FF-15 15 17 9 8 40 63 50 52 5,5 9,5 5,5
FF-17 17 20 11 9 50 77 62 61 6,6 11 6,5
FF-20 20 20 11 9 57 85 70 68 6,6 11 6,5
FF-25 25 24 14 10 63 98 80 79 9 14 8,5
FF-30 30 27 18 9 75 117 95 93 11 17,5 11

 

Open the catalog in pdf format
Download catalog in pdf format

 

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