Ball screw nut mountings / pitch / steel, aluminium / coating selectable (Part Numbers - CAD Download)

View the FAQ (10)

MISUMI

BNFA,BNFB,BNFM,BNFR

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

Drawing / Specifications
3D Preview 3D preview is available after complete configuration
Part Numbers
More Information
Catalog
Technical Information

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

Type	Material	Surface Treatment
BNFB	EN 1.1191 Equiv.	Black Oxide
BNFM		Electroless Nickel Plating
BNFR		LTBC Plating
BNFA	Aluminum Alloy 5000 series	Clear 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

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)

(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

Part Number:

3D preview is not available, because the part number has not yet been determined.

In order to open the 3D preview, the part number must be fixed.

Plug-in is required for 3D Preview

CAD Download

Data to be displayed: 30; 45; 60

Part Number
BNFB1505S-[20,23,25,28,30,35,40,45]
BNFB1510C-[20,23,25,28,30,35,40,45]
BNFB1510R-[20,23,25,28,30,35,40,45]
BNFB1510S-[20,23,25,28,30,35,40,45]
BNFB1520S-[23,25,28,30,35,40,45]
BNFB2005C-[25,28,30,35,40,45]
BNFB2005R-[25,28,30,35,40,45]
BNFB2005S-[25,28,30,35,40,45]
BNFB2010C-[25,28,30,35,40,45]
BNFB2010R-[32,35,40,45,55]
BNFB2010S-[28,30,35,40,45,55]
BNFB2020R-[25,28,30,35,40,45]
BNFB2505C-[28,30,35,40,45,55]
BNFB2505R-[28,30,35,40,45,55]
BNFB2505S-[30,35,40,45,55]
BNFB2510R-[35,40,45,55]
BNFB2510S-[32,35,40,45,55]
BNFB2525R-[28,30,35,40,45,55]
BNFB2806R-[32,35,40,45,55]
BNFB3210R-[40,45,55]
BNFB3232R-[35,40,45,55]
BNFB801X-[10,20]
BNFB802C-[17,20,23,25]
BNFB802R-[17,20,23,25,28,30,35,40]
BNFB802S-[18,20,23,25,28,30,35,40]
BNFB804R-[17,20,23,25,28,30,35,40]
BNFM1002R-[17,20,23,25,28,30,35,40]
BNFM1002S-[17,20,23,25,28,30,35,40]
BNFM1002X-[17,20,23,25,28,30,35,40]
BNFM1004C-[17,20,23,25,28,30,35,40]
BNFM1004R-[17,20,23,25,28,30,35,40]
BNFM1004S-[20,23,25,28,30,35,40]
BNFM1010R-[17,20,23,25,28,30,35,40]
BNFM1010S-[17,20,23,25,28,30,35,40]
BNFM1202S-[20,23,25,28,30,35,40]
BNFM1204C-[20,23,25,28,30,35,40]
BNFM1204R-[20,23,25,28,30,35,40]
BNFM1204S-[23,25,28,30,35,40]
BNFM1205S-[20,23,25,28,30,35,40]
BNFM1210S-[20,23,25,28,30,35,40]
BNFM1405R-[20,23,25,28,30,35,40]
BNFM1505C-[20,23,25,28,30,35,40,45]
BNFM1505R-[20,23,25,28,30,35,40,45]
BNFM1505S-[20,23,25,28,30,35,40,45]
BNFM1510C-[20,23,25,28,30,35,40,45]
BNFM1510R-[20,23,25,28,30,35,40,45]
BNFM1510S-[20,23,25,28,30,35,40,45]
BNFM1520S-[23,25,28,30,35,40,45]
BNFM2005C-[25,28,30,35,40,45]
BNFM2005R-[25,28,30,35,40,45]
BNFM2005S-[25,28,30,35,40,45]
BNFM2010C-[25,28,30,35,40,45]
BNFM2010R-[32,35,40,45,55]
BNFM2010S-[28,30,35,40,45,55]
BNFM2020R-[25,28,30,35,40,45]
BNFM2505C-[28,30,35,40,45,55]
BNFM2505R-[28,30,35,40,45,55]
BNFM2505S-[30,35,40,45,55]
BNFM2510R-[35,40,45,55]
BNFM2510S-[32,35,40,45,55]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Material	Surface Treatment	No.	Misumi Applicable Ball Screw Shaft Dia.	Nut Size	H (mm)
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	1505S	15	Standard	20 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	1510C	15	Standard	20 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	1510R	15	Standard	20 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	1510S	15	Standard	20 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	1520S	15	Standard	23 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2005C	20	Standard	25 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2005R	20	Standard	25 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2005S	20	Standard	25 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2010C	20	Standard	25 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2010R	20	Standard	32 ～ 45
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2010S	20	Standard	28 ～ 55
-	1	17 Days	10	EN 1.1191 Equiv.	Black Oxide	2020R	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2505C	25	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2505R	25	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2505S	25	Standard	30 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2510R	25	Standard	35 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2510S	25	Standard	32 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2525R	25	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	2806R	28	Standard	32 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	3210R	32	Standard	40 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	3232R	32	Standard	35 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	801X	8	Standard	10 ～ 20
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	802C	8	Standard	17 ～ 25
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	802R	8	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	802S	8	Standard	18 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Black Oxide	804R	8	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1002R	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1002S	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1002X	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1004C	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1004R	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1004S	10	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1010R	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1010S	10	Standard	17 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1202S	12	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1204C	12	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1204R	12	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1204S	12	Standard	23 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1205S	12	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1210S	12	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1405R	14	Standard	20 ～ 40
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1505C	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1505R	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1505S	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1510C	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1510R	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1510S	15	Standard	20 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	1520S	15	Standard	23 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2005C	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2005R	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2005S	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2010C	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2010R	20	Standard	32 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2010S	20	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2020R	20	Standard	25 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2505C	25	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2505R	25	Standard	28 ～ 55
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2505S	25	Standard	30 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2510R	25	Standard	35 ～ 45
-	1	18 Days	10	EN 1.1191 Equiv.	Electroless Nickel Plating	2510S	25	Standard	32 ～ 45

Back to the Category Ball Screws

Technical Drawing - Ball Screws

Open the technical drawing in the new window

Specification Table - Ball Screws

Part Number		H										A	B	P.C.D.	K	M₁xℓ	D	ℓ₁	F	L	ℓ₂	ℓ₃	M₂xℓ	MISUMI Ball Screw
Type	No.	Selection										A	B	P.C.D.	K	M₁xℓ	D	ℓ₁	F	L	ℓ₂	ℓ₃	M₂xℓ	BSX (C3)	BSS (C5)BSSE (C7)	BS□□□ (C10)
BNFB BNFM BNFR BNFA	801X	10	20									30	H+8	19	30	M3x5	12.4	24	8	16	3	10	M3x5	0801	-	-
	802S	18	20	23	25							40	H+13	27	45	M3x5	20.4	30	14	28	8	12	M4x 8	0802	0802	-
	802C	17	20	23	25							40	H+10	24	30	M4x7	16.4	30	12	24	6			-	-	0802
	802R	17	20	23	25	28	30					43	H+12	30	0	M4x7	20.4	34	17					-	-	0802
	804R	17	20	23	25	28	30					43	H+12	30	30	M3x 5	23.4	34	16					-	-	0804
	1002R	17	20	23	25	28	30					50	H+13.5	33	30	M4x 7		42						-	-	1002
	1002X	17	20	23	25	28	30					43	H+15.5	31	45			34		26	7			1002	-	-
	1002S	17	20	23	25	28	30	35	40			43	H+15.5	31	45			34		24	6			-	1002	-
	1004S		20	23	25	28	30	35	40			52	H+14	36	30		26.4	42	22	32	10	16	M5x10	-	1004	-
	1004C	17	20	23	25	28	30	35	40			50	H+13	31			22.4	40	18	27	6	15		-	-	1004
	1004R	17	20	23	25	28	30	35	40			52	H+14	36			26.4	42	22					-	-	1004
	1010R	17	20	23	25	28	30	35	40				H+15				28.4		23					-	-	1010
	1010S	17	20	23	25	28	30	35	40				H+15				28.4		23	34	7	20		-	1010	-
	1202S		20	23	25	28	30	35	40			50	H+17	33	45		25.4	40	15	28	8	14		1202	1202	-
	1204S			23	25	28	30	35	40			50	H+20.5	41	45	M5x 7	30.4	40	20	34	7	20		-	1204	-
	1204C		20	23	25	28	30	35	40			52	H+14	33	30	M4x 7	24.4	42	20	27	6	15		-	-	1204
	1204R		20	23	25	28	30	35	40			60	H+15	40			30.4	50	24	29	7	15		-	-	1204
	1205S		20	23	25	28	30	35	40				H+16	40						36	8	20		1205	1205	-
	1210S		20	23	25	28	30	35	40					41		M5x 7				40	10			-	1210	1210
	1405R		20	23	25	28	30	35	40					40		M4x 7				40	10			-	-	1405
	1505C		20	23	25	28	30	35	40	45			H+17	42		M5x 7	31.4			34	7		M6x12	-	-	1505
	1505R		20	23	25	28	30	35	40	45		62		44		M4x 7	34.4	52	28	34	7			-	-	1505
	1505S		20	23	25	28	30	35	40	45				45		M5x 7				36	8			1505	1505	-
	1510S		20	23	25	28	30	35	40	45				45						42	11			-	1510	-
	1510C		20	23	25	28	30	35	40	45				42			31.4		24	38	7	24		-	-	1510
	1510R		20	23	25	28	30	35	40	45				45			34.4		28	44	7	30		-	-	1510
	1520S			23	25	28	30	35	40	45				45			34.4		28	50	10	30		-	1520	1520
	2005C				25	28	30	35	40	45		72	H+19	49		M6x10	36.4	60	26	40		20	M8x16	-	-	2005
	2010C				25	28	30	35	40	45		72	H+19	49		M6x10	36.4	60	26	50		30		-	-	2010
	2005S				25	28	30	35	40	45		76	H+20	53		M6x10	40.4	64	34	55		35		-	2005	-
	2005R				25	28	30	35	40	45		68	H+20	50		M4x 7		56	34	40		20		-	-	2005
	2020R				25	28	30	35	40	45		68	H+19.5	50		M5x 7		56	32	70	15	40			-	2020
	2505C					28	30	35	40	45	55	76	H+24	53		M6x10	42.4	64	32	40	10	20			-	2505
	2505R					28	30	35	40	45	55	76	H+21	55		M5x 7	43.4	62	38	60		40	M10x20		-	2505
	2010S					28	30	35	40	45	55	82	H+23	59		M6x10	46.4	70	40	55		35	M8x16		2010/2020	-
	2525R					28	30	35	40	45	55	82	H+23	60			47.4	70	40	90		70			-	2525
	2505S						30	35	40	45	55	76	H+28.5	60	45		47.4	64	32	40		20			2505	-
	2010R							35	40	45	55	84	H+26	67	30		52.4	72	46	60		40			-	2010
	2510S							35	40	45	55	94	H+26	68		M8x12	52.4	80	44	55		35	M10x20		2510/2520	-
	2510R							35	40	45	55	100	H+30	78		M8x12	60.4	86	54	60		40	M10x20		-	2510
	2806R							35	40	45	55	87	H+26	65		M6x10	50.4	75	42	60		40	M8x16		-	2806
	3232R							35	40	45	55	106	H+30	74		M8x12	58.4	86	50	75		55	M10x20		-	3232
	3210R								40	45	55	116	H+33	85		M8x12	67.4	96	58	80		60	M10x20		-	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.

Products homepage

Basic information

Type	Related Components

Configure

172Suggestion of an applicable part number.

View Part Numbers

Some specification is not specified yet.

The part number is completed.

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
H(mm)
10

17

18

20

23

25

28

30

32

35

40

45

55
Clear
Type
- BNFA
- BNFB
- BNFM
- BNFR
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

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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.