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TAC Series Ball Screw Support Bearings
TAC Series Ball Screw Support Bearings
FOB Price 100 USD / Piece
MOQ
10 Piece
Port
shanghai
Lead Time
7days
China
Main Products : spindle bearings
MIDDLE HUAXIA ROAD,HIGH TECH AREA LUOYANG PILOT FREE TRADE ZONE, HENAN CHINA Luoyang, Henan
TAC Series Ball Screw Support Bearings Details
Place of Origin
China
TAC Series Ball Screw Support Bearings Introduce

Angular contact thrust ball bearings for precision ball screws have been designed specifically for each application. Lineup includes both a highly rigid series and high capacity series.

Application:

Used in high precision, high-speed precision machine tools.

Precision measuring instruments and precision feed actuators such as robots.

All ball screw support bearings are nonseparable angular contact bearings and have cutaway shoulders on both the inner and outer rings.

They can support very high thrust loads in one direction or combinations of radial and thrust loads, but not radial loading alone. These bearings are designed to provide machine tool drive systems with extreme axial rigidity, low drag torque and minimal axial runout. They are intended for specific applications in machine tools, e.g., ball screw supports, cross slides, X Y table positioners and transfer tables. They should not be used in place of standard angular contact spindle bearings.

BS Series bearings have a molded nylon, glass fiber reinforced polyamide cage with spherical ball pockets.

Inch Series, L bearings, have a landpiloted cage of reinforced phenolic, precision machined, with evenly spaced ball pockets.

All metric (BS, 7602, 7603 Series) ball screw support bearings come with the molded nylon cage, standard. Series L bearings are equipped with the phenolic cage, standard.

Bearing pairs and sets are matchmarked on their outside diameter surfaces to indicate correct positioning of each bearing. Barden packaging also contains detailed instructions for proper installation.

Recommendations for shaft and housing shoulder diameters are based on maximum support of duplexmountedbearings as found in the product tables. In circumstances with other mounting arrangements, consult Barden Product Engineering.

Most ball screw support bearing applications are subject to duty cycle loading with constantly changing feeds, speeds and operating loads. These factors, in combination with the heavy preloads built into the bearings, make life calculations difficult. Consult Barden Product Engineering for information which can be used in specific cases.

Ball screw support bearings (rings and balls) are made from 52100 steel. Bearings are also available with X lifeultra rings and ceramic (silicon nitride) balls for even greater speeds and longer life.

Ball screw support bearings are available as singles, standard duplex pairs or quadruplex sets. In addition, wewill supply custom combination sets to meet specialized application needs.

Ballscrew bearings could be designed into sets of two, three, four or various other combinations in order to meet a ballscrews loading requirements. Ballscrew bearings can be arranged into either a face to face or a backto back duplex bearing. These types of ball bearings can handle the loading force from both the axial and radial directions, and by increasing the number of ball bearing sets will improve their loading capacity.

For a back to back configuration, there is a large distance between the acting load center of the bearings resulting in a higher moment load capacity. Therefore, this kind of bearing arrangement is commonly used in machine center spindles. Although the moment load capacity for a face to face configuration is smaller, it has an advantage of having a larger misalignment angle.

DRZ ballscrew bearings have a contact angle of 60°. This type of bearing can handle

larger axial loads when compared to the normal type. It is specially designed to be used

in ballscrew assembly. Since the axial load capacity is high, this also provides a high axial

stiffness . This could prevent the ballscrew from shifting when loaded . The functionality of ballscrew bearings is to help the ballscrew reach it's best accuracy .

Assembly Arrangement:

Tolerances:

Bearings

Demension
(mm)

Load Ca (N)

Rotation
(min-1)

Stiffness (DB,DF) (N)

Rigidity (DB,DF)
(N/μm)

Torque
(N・m)

d

D

B

r
(Min)

r1
(Max)

Lub.

Oil.

H

H

H

15TAC47C

15

47

15

1

0.6

23.0

6,900

9,200

1,450

630

0.09

17TAC47C

17

47

15

1

0.6

23.0

6,900

9,200

1,450

630

0.09

20TAC47C

20

47

15

1

0.6

23.0

6,900

9,200

1,450

630

0.09

25TAC62C

25

62

15

1

0.6

29.9

5,200

6,900

2,280

850

0.15

30TAC62C

30

62

15

1

0.6

30.5

4,900

6,400

2,400

890

0.16

35TAC72C

35

72

15

1

0.6

32.5

4,100

5,800

2,750

1,030

0.18

40TAC72C

40

72

15

1

0.6

33.5

4,100

5,500

2,860

1,080

0.19

40TAC90C

40

90

20

1

0.6

62.0

3,500

4,600

3,450

1,150

0.29

45TAC75C

45

75

15

1

0.6

34.5

3,700

4,900

3,100

1,170

0.20

45TAC100C

45

100

20

1

0.6

64.5

3,000

4,100

4,440

1,340

0.40

50TAC100C

50

100

20

1

0.6

66.0

3,000

3,900

4,650

1,410

0.42

55TAC100C

55

100

20

1

0.6

66.0

3,000

3,900

4,650

1,410

0.42

55TAC120C

55

120

20

1

0.6

70.5

2,500

3,500

5,450

1,660

0.49

60TAC120C

60

120

20

1

0.6

70.5

2,500

3,500

5,450

1,660

0.49

Screw ball bearings interchange :

 

TIMKEN

 

BARDEN

 

 

FAG

 

 

NSK

 

 

NTN

 

 

RHP

 

 

SKF

MM12BS32

-

7602012-TVP

-

-

-

BSA 201

MM15BS35

-

7602015-TVP

-

-

-

BSA 202

MM17BS47

-

-

17TAC47 C10

BST17X47-1B

BSB 017047

-

MM20BS47

BSB2047

BSB020047-T

20TAC47 C10

BST20X47-1B

BSB 020047

BSD 2047

MM9306WI2H

L078H

-

20TAC47X C11

BST20X47-2B

BSB 078

-

MM9308WI2H

L093H

-

23TAC62 C11

BST23.8X62-1B

BSB 093

-

MM25BS52

-

7602025-TVP

-

-

BSB 2025

BSA 205

MM25BS62

BSB2562

BSB025062-T

25TAC62 C10

BST25X62-1B

BSB 025062

BSD 2562

MM30BS62

BSB3062

BSB030062-T

30TAC62 C10

BST30X62-1B

BSB 030062

BSD 3062

MM30BS72

-

-

-

-

BSB 030072

-

MM35BS72

BSB3572

BSB030572-T

35TAC72 C10

BST35X72-1B

BSB 035072

BSD 3572

MM35BS100

-

-

-

-

BSB 035100

-

MM9310WI2H

L150H

-

38TAC72 C11

BST38.1X72-1B

BSB 150

-

MM40BS72

BSB4072

BSB040072-T

40TAC72 C10

BST40X72-1B

BSB 040072

BSD 4072

MM40BS90

-

-

-

-

BSB 040090

-

MM40BS90-20

-

BSB040090-T

40TAC90 C10

BST40X90-1B

-

BSD 4090

MM40BS90-23

-

7603040-TVP

-

-

-

BSA 308

MM40BS100

-

-

-

-

BSB 040100

-

MM9311WI3H

L175H

-

44TAC76 C11

BST44.5X76.2-1B

BSB 175

-

MM45BS75

-

BSB045075-T

45TAC75 C10

BST45X75-1B

BSB 045075

BSD 4575

MM45BS100

-

BSB045100-T

45TAC100 C10

BST45X100-1B

BSB 045100

BSD 45100

MM50BS90

-

-

-

-

BSB 050090

-

MM50BS100

-

BSB050100-T

50TAC100 C10

BST50X100-1B

BSB 050100

BSD 50100

MM55BS90

-

BSB055090-T

55TAC90 C10

-

BSB 055090

-

MM55BS120

-

BSB055120-T

55TAC120 C10

BST55X120-1B

BSB 055120

BSD 55120

MM9313WI5H

L225H

-

57TAC90 C11

-

BSB 225

-

MM60BS120

-

BSB060120-T

60TAC120 C10

BST60X120-1B

BSB 060120

BSD 60120

MM75BS110

-

BSB075110-T

-

-

BSB 075110

-

MM9316WI3H

L300H

-

76TAC110 C11

-

BSB 300

-

MM100BS150

-

-

-

-

BSB 100150

-

MM9321WI3

-

-

101TAC145 C11

-

BSB 400

-

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