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Ball screw nut mountings / pitch / steel, aluminium / coating selectable (BNFA1505S-23)

Ball screw nut mountings / pitch / steel, aluminium / coating selectable
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MISUMI

MISUMI

Product Details:

Manufacturer part number: BNFA1505S-23

Brand: MISUMI

Price: Please contact the support for quotation

Delivery time: 17 Days


Technical Data:

Material: Aluminum Alloy 5000 series

Surface Treatment: Anodize (Clear)

No.: 1505S

Misumi Applicable Ball Screw Shaft Dia.: 15

Nut Size: Standard


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BNFA1505S-23

Back to the Category Ball Screws

 

Technical Drawing - Ball Screws

Ball Screw Nut Brackets/Block Style/Standard:Related Image
Open the technical drawing in the new window

Available dimensions and tolerances can be found under the tab More information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Ball Screws

 
TypeMaterialSurface Treatment
BNFBEN 1.1191 Equiv.Black Oxide
BNFMElectroless Nickel Plating
BNFRLTBC Plating
BNFAAluminum Alloy 5000 seriesClear Anodize


Further specifications can be found under the tab More information.

Composition of a Product Code - Ball Screws

Part Number-H
BNFB802S-20

General Information - Ball Screws

Ball screw drive - ball screw drive, nut stop - ball screw drive, nut damper - ball screw drive, block shape - ball screw drive, nut mount

 

Ball Screw Selection Details

- Material: steel

- Coatings: uncoated, LTBC coating, phosphate conversion coating

- Heat treatment: up to 62HRC

- Precision category: C3, C5, C7, C10

- Precision classes: precision class, standard class

- Slope: 1 to 32 mm

- Outer diameter: 6 to 32 mm

- Length (mm): 100 to 2000

- Nut shape: round flange, square flange, compact flange, block shape

 

Description/Basics

Ball screws are intended for converting rotary motion to linear motion. This can also be done in reverse order from linear to rotary motion. With the ball screws, this is achieved extremely precisely due to their low play. In mechanical engineering, the ball thread drive is an indispensable feature and is indispensable in precision applications. These work in horizontal and vertical orientation, allowing to shift, raise and lower devices.
The ball screws are often driven by motors and shaft couplings, or manually via rotary/crank handles.
When utilising a keyway, it is recommended using a machine key, as these can be combined excellently due to the manufacturing tolerances.
For a smooth process, it is recommended installing the ball screw with a fixed bearing and a floating bearing. This ensures that the ball screw does not bend due to compression and generate vibrations. For this purpose, MISUMI offers the right support units drives in various designs. For more information on how to install ball screws, see the Installation Instructions available as a PDF.
Ball screw nuts are available in different shapes. These enable versatile utilisation, even in confined spaces. Due to their high precision, the ball screws can also provide a high level of repeatability that is necessary in precise positioning applications. These can be utilised, for example, for measuring devices or in 3D printing. It is recommended to use a pre-stressed ball screw for highly precise applications. Due to the pre-tensioning, the axial play is almost zero unlike a conventional ball screw. In addition, MISUMI offers single axis actuators (locating units) for such applications, which as drives are already equipped with precise ball screws.
In smaller applications, a slide screw or a so-called miniature screw drive can be used. Due to their design, these are very compact, but suitable for lower axial loads.
If very high forces occur, a lead screw could also be considered.
Which ball screw is the right one for your application must be calculated based on the existing factors and influences. You can use the selection Ball Screws that is available as a PDF for this purpose. You can also find the service life calculation in this link.

Overview of Screw Drives as PDF

 

Application Examples - Ball Screws

Positioning stage with ball screw drive - positioning stage with ball screw drive and profile rail guide

Application example for positioning stages
(1) Linear guide accessories, (2) Standard linear guide, (3) Table plate (meviy), (4) Ball screw, (5) Support units

Ball screw drive with bearing housing and damper - nut stop for ball screw drives - fixed bearings and floating bearings for ball screw drives

Application example for the ball screw
(1)) Support units, (2) Ball screw nut stops, (3) Ball screw, (4) Ball screw nut mountings


Lifting table and lifting device with ball screw drive - lifting table with rotary handle - lifting table with crank

Application example for a lifting device
(1) Ball screw, (2) Standard linear guide, (3) Support units, (4) Table top (meviy)

 

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

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Part Number
BNFA1505S-23
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
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RoHSMaterial Surface Treatment No. Misumi Applicable Ball Screw Shaft Dia. Nut Size H
(mm)
1 17 Days 10Aluminum Alloy 5000 seriesAnodize (Clear)1505S15Standard23

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Back to the Category Ball Screws

Technical Drawing - Ball Screws

Ball Screw Nut Brackets/Block Style/Standard:Related Image
Open the technical drawing in the new window

Specification Table - Ball Screws

Part NumberHABP.C.D.KM1xℓDℓ1FLℓ2ℓ3M2xℓMISUMI Ball Screw
TypeNo.SelectionBSX (C3)BSS (C5)BSSE (C7)BS□□□
(C10)
BNFB
BNFM
BNFR
BNFA		801X1020        30H+81930M3x512.424816310M3x50801--
802S18202325      40H+13274520.4301428812M4x 808020802-
802C17202325      H+102430M4x716.412246--0802
802R172023252830    43H+1230020.43417--0802
804R172023252830    30M3x 523.416--0804
1002R172023252830    50H+13.533M4x 742--1002
1002X172023252830    43H+15.53145342671002--
1002S1720232528303540  246-1002-
1004S 20232528303540  52H+14363026.44222321016M5x10-1004-
1004C1720232528303540  50H+133122.4401827615--1004
1004R1720232528303540  52H+143626.44222--1004
1010R1720232528303540  H+1528.423--1010
1010S1720232528303540  34720-1010-
1202S 20232528303540  50H+17334525.440152881412021202-
1204S  232528303540  H+20.541M5x 730.42034720-1204-
1204C 20232528303540  52H+143330M4x 724.44227615--1204
1204R 20232528303540  60H+154030.45024297--1204
1205S 20232528303540  H+163682012051205-
1210S 20232528303540  41M5x 74010-12101210
1405R 20232528303540  40M4x 7--1405
1505C 2023252830354045 H+1742M5x 731.4347M6x12--1505
1505R 2023252830354045 6244M4x 734.45228--1505
1505S 2023252830354045 45M5x 736815051505-
1510S 2023252830354045 4211-1510-
1510C 2023252830354045 4231.42438724--1510
1510R 2023252830354045 4534.4284430--1510
1520S  23252830354045 5010-15201520
2005C   252830354045 72H+1949M6x1036.460264020M8x16--2005
2010C   252830354045 5030--2010
2005S   252830354045 76H+2053M6x1040.464345535-2005-
2005R   252830354045 6850M4x 7564020--2005
2020R   252830354045 H+19.5M5x 732701540-2020
2505C    28303540455576H+2453M6x1042.464401020-2505
2505R    283035404555H+2155M5x 743.462386040M10x20-2505
2010S    28303540455582H+2359M6x1046.470405535M8x162010/2020-
2525R    2830354045556047.49070-2525
2505S     303540455576H+28.545643240202505-
2010R      3540455584H+26673052.472466040-2010
2510S      354045559468M8x1280445535M10x202510/2520-
2510R      35404555100H+307860.486546040-2510
2806R      3540455587H+2665M6x1050.47542M8x16-2806
3232R      35404555106H+3074M8x1258.486507555M10x20-3232
3210R       404555116H+338567.496588060-3210
No.802R has 2 holes. No.□□□□C is for C10 Rolled Ball Screws Compact Type.

 
More Information
Caution: Do not let the nuts overrun or remove the nuts from the screw shafts.
It may cause the balls to fall out or damage the ball recirculation parts.
For accuracy of Rolled Ball Screws, see P.2223 and P.2224.
For Support Units, see P.753~P.778.
For Nut Brackets, see P.780.
 

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Basic Attributes

  • Material

    • EN 1.1191 Equiv.
    • Aluminum Alloy 5000 series

    Clear

  • Surface Treatment

    • Anodize (Clear)
    • Black Oxide
    • Electroless Nickel Plating
    • LTBC Plating

    Clear

  • No.

    • 801X
    • 802C
    • 802R
    • 802S
    • 804R
    • 1002R
    • 1002S
    • 1002X
    • 1004C
    • 1004R
    • 1004S
    • 1010R
    • 1010S
    • 1202S
    • 1204C
    • 1204R
    • 1204S
    • 1205S
    • 1210S
    • 1405R
    • 1505C
    • 1505R
    • 1505S
    • 1510C
    • 1510R
    • 1510S
    • 1520S
    • 2005C
    • 2005R
    • 2005S
    • 2010C
    • 2010R
    • 2010S
    • 2020R
    • 2505C
    • 2505R
    • 2505S
    • 2510R
    • 2510S
    • 2525R
    • 2806R
    • 3210R
    • 3232R

    Clear

  • Misumi Applicable Ball Screw Shaft Dia.

    • 8
    • 10
    • 12
    • 14
    • 15
    • 20
    • 25
    • 28
    • 32

    Clear

  • Nut Size

    • Standard

    Clear

  • Type

    • BNFA
    • BNFB
    • BNFM
    • BNFR

    Clear

  • H(mm)

    • 10
    • 17
    • 18
    • 20
    • 23
    • 25
    • 28
    • 30
    • 32
    • 35
    • 40
    • 45
    • 55

    Clear

  • Filter by CAD data type

    • 2D
    • 3D

    Clear

Filter by standard shipping days

    • All
    • 12 Days or Less
    • 17 Days or Less
    • 18 Days or Less

    Reset

Optional Attributes

Frequently Asked Questions (FAQ)

Question:

How do you mount a ball screw drive?
Answer:

A ball screw should be stored with a fixed bearing and a floating bearing. The fixed bearing should ideally be installed on the engine side or the drive side. Fixed bearing housings come already equipped with angular contact ball bearings to absorb axial forces. This combination makes ball screws an ideal candidate for positioning. However, a preloaded threaded drive should be selected for very high precision as it has very little axial play.

Question:

Why should a fixed and floating bearing be used?
Answer:

A fixed bearing housing is often used on the drive side. The floating bearing with housing, on the other hand, allows a small axial deviation and thus compensates for a change in length or a length tolerance. This prevents compression and bending of the ball screw and an imbalance through the length compensation. This may already occur by heating the spindle or application. Fixed and floating bearings are recommended in many rotary applications.
Question:

How does a ball screw work?
Answer:

A ball screw works similarly to a profile rail guide . In the nut of the ball screw, balls are in a closed ball circulation, which are guided to the spindle by the circular alignment. Thus, an unlimited stroke is theoretically possible, which, however, is limited by the length of the spindle. It is important to ensure that the nut of the ball screw is not removed from the spindle, because the balls can fall out as a result.
Question:

Why does the spindle oscillate in a ball screw drive?
Answer:

One possible cause for this could be that the ball screw is exposed to excessively high rotational speeds. The permissible rotational speed should not be higher than 80% of the critical speed. Here, attention should be paid not only to the visibly rotating components, but also to the rotational speed of the balls. Further information can be found in the ball screw driver selection as a PDF. Another possibility for the spindle to oscillate could be a compression of the spindle. Therefore, it is important to install a ball screw with a fixed bearing and a floating bearing so that these stresses can be compensated through a floating bearing. MISUMI offers this as ready-to-install bearing housings.
Question:

Is the ball screw nut removable?
Answer:

The ball screw nut or ball wrap nut should not be removed from the lead screw. There is a risk that the balls will fall out of the nut. This also means that the nut should not be extended over the threaded surface of the spindle. To remove the nut, you can work carefully with a transition shaft with the appropriate core diameter. However, MISUMI also offers an option [TAS] that provides a transition shaft with the ball screw drive. If a ball screw with reverse ball screw is required, the option [RLC] can be supplied with the ball screw nut installed in reverse.
Question:

Can you replace just the ball screw nut?
Answer:

A ball screw drive should always be replaced as one unit. If damage or wear has already occurred on the spindle, the accuracy of the ball screw drive can no longer be guaranteed. Therefore, it is always recommended replacing spindle and nut together. In addition, the ball screw nut should generally not be removed from the spindle. As a result, the balls that are necessary for the transmission of force may fall out.
Question:

How long does a ball screw lasts?

Answer:

How long a ball screw can withstand an application depends on many factors. Therefore, it is not possible to say generally how long a ball screw will last. When a ball screw should be replaced, it must be determined mathematically. In the following link, you will find the appropriate calculation formula for the lifetime available as a PDF.
Question:

How large is the axial play of a ball screw?
Answer:

The axial play varies depending on the precision class and size of the ball screw. You can find the appropriate axial play for different ball screws under the selection Ball Screws available as a PDF .
Question:

What must be considered when installing a ball screw?
Answer:

When installing a ball screw spindle, more must be taken into account than just ensuring that it is installed tension-free. There are a few things you should observe even before installation. You can view these as a PDF under Precautions.
Question:

Are the ball screws lubricated?
Answer:

The ball screws from MISUMI are pre-greased. Various lubricants are available for this purpose. Lithium-saponified lubricants are used as standard lubricants. In addition, MISUMI offers heat-resistant lubricants or lubricants suitable for cleanrooms. You can find further information under Installation and Maintenance available as a PDF.

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