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Ball Screw Support Unit - Fixed Side, Block Type. (BSWN8S-SET)

Volume Discount

MISUMI

Uses the preloaded JIS Class 5 Angular Contact Bearings and is suitable for high-accuracy and high-speed precision applications.

inCAD Components

Part Number

Configured Part Number is shown.

BSWN8S-SET

Product specification
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Part Numbers
Catalog

Support Units - Fixed Side, Square:Related Image

・Materials

Type	[ M ]Material		[ S ]Surface Treatment
Type	①③	⑥⑦	①③⑥⑦
BSW	1045 Carbon Steel	1018 Carbon Steel	Black Oxide
BSWN			Electroless Nickel Plating
BSWR			Low Temperature Black Chrome Plating

Specifications

Part Number

BSW15

■Component Details

Number	Part Name	Quantity
①	Bearing Housing	1
②	Angular Contact Bearing Class 5	1 Set
③	Cover	1
④	Oil Seal	2
⑤	Hex Socket Head Cap Screw*	4
⑥	Collar	1
⑦	Clamping Nut (with Set Piece)	1

[ ! ]Oil Seal ④ is not included in d=6.
[ ! ]d=8 comes with one Oil Seal ④.
[ ! ]Do not disassemble ①, ②, ③ and ④, as they
must remain as an assembled unit.
[ ! ]BSWR bearing is filled with low particle generation grease.
* Screws ⑤ for BSWR and BSWN are Stainless Steel Type.
[ ! ]For No.8S and 10S, the I.D. of oil seal is smaller than the previous No.8S and No.10S versions.

Part Number		d	L	L₁	L₂	L₃	B	H	h	B₁	H₁	P	d₁	d₂	ℓ	M (Fine)	T	Oil Seal Applicable Shaft Dia.
Type	No.
BSW BSWN BSWR	6	6	20	-	22.5	3.5	42	25	13	18	20	30	5.5	9.5	11	M6x0.75	12	-
	8S	8	23	-	26	4	52	32	17	25	26	38	6.6	11		M8x1.0	14	10
	8																	11.5
	1022	10	24	6	29.5	6	70	40	22	36	32	52	9	14		M10x1.0	17	14
	10S							43	25		35							12
	10																	14
	1223	12						41	23		33					M12x1.0	19	15
	12							43	25		35
	1526	15	25	6	38	5	80	46	26	41	36	60	11	17	15	M15x1.0	22	20
	1528							48	28		38
	15							50	*30		40
	20	20	42	10	52	10	95	58		56	45	75				M20x1.0	30	25
	25	25	48	13	59	14	105	68	35	66	25	85	11	-	-	M25x1.5	35	31

[ ! ]Take care in combining No.20 with BSSZ(K)2510, BSSR(K)2510 and BSST2510 Ball Screws. The ball screw nut may come in contact with the bottom surfaces.

Price list

Part Number		BSW		BSWN		BSWR
Type	No.	Unit Price	Volume Discount Rate	Unit Price	Volume Discount Rate	Unit Price	Volume Discount Rate
		1~9 pc(s).	10 pcs. ~	1~9 pc(s).	10 pcs. ~	1~9 pc(s).	10 pcs. ~
BSW BSWN BSWR	6	7,050	6,700	8,260	7,850	9,070	8,620
	8S
	8
	1022	6,170	5,860	7,210	6,850	7,910	7,510
	10S
	10
	1223	6,330	6,010	7,330	6,960	8,050	7,650
	12
	1526	7,410	7,040	8,650	8,220	9,500	9,030
	1528
	15
	20	9,380	8,910	10,740	10,200	11,790	11,200
	25	10,940	10,390	13,420	12,750	13,960	13,260

More Information

[ ! ]For details of Bearings in addition to mounting interface accuracies of Support Units, >> Click here
[ ! ]Ball Screw Compatibility Chart >> Click here
[ ! ]Low temperature black chrome plating products are filled with low particle generation grease for cleanrooms.
[ ! ]Store Accessories with care since it is required when assembling.

Technical Information

Combination of Ball Screws and Support Units

It is necessary to verify compatibility when selecting ball screw support units.

When selecting Support Units for Ball Screws, note that it can be combined if dimensions of bearing installation part on Fixed Side of the Ball Screw [Fig. 1] and bearing I.D of the Support Unit [Fig. 2] are the same.

How to Select Support Units Compatible with Ball Screw?

To ensure compatibility of the support unit with ball screw, it is recommended to follow the steps indicated in the table below.(Example: Ball Screw Series BSS1505 and Support Unit BSW12, this same methodology can be used to configure other ball screw series and support units).

Step 1 - Confirm that shaft diameter of the Ball Screw (Example: 15 mm).
Step 2 - Confirm that dimension of the bearing installation part on fixed side of the Ball Screw (Example: 12mm).
Step 3 - Determine that corresponding bearing I.D of the Support Unit (Example No.12).

Ball Screw Part Number	Accuracy class C3	BSX0601	-	BSX0801 BSX0802 BSX1002	-	BSX1202 BSX1205	BSX1505	-	-	-
	Accuracy class C5	-	BSS1002	BSS0802 BSS1202	BSS1004 BSS1205 BSS1204 BSS1210	BSS1010	Step 2 BSS15□□	BSS20□□	BSS25□□	-
	Accuracy class C7	BSST08022	BSSE1002 BSST1004	BSSE0802 BSSE1202	BSSE1004 BSSE1205 BSSE1210 BSST12004 C-BSST1204	-	BSSE15□□ BSST15□□	BSSE20□□ BSST20□□	BSSE25□□ BSST25□□	-
	Accuracy class C10	BSSR08□□ BSSZ08□□ C-BSS0802	BSSR10□□ BSSZ10□□	-	BSSR12□□ BSSZ12□□ BSSC1204	BSSR1405 BSSZ1405	BSSR15□□ BSSZ15□□ BSRB15□□	BSSR20□□ BSSZ20□□ BSBR20□□	BSSR25□□ BSSZ25□□ BSBR25□□ BSSR28□□ BSSZ28□□	BSSR32□□ BSSZ32□□
Bearing Installation Part on Ball Screw Fixed Side		Ø6	Ø8		Ø10		Step 2 Ø12	Ø15	Ø20	Ø25
Support Units Bearing I.D		No.6	No.8S	No.8	No.10S	No.1022	Step 3 No.12	152	No.20*	No.25
Support Units Bearing I.D		No.6L	No.8S	No.8	No.10S	No.10	Step 3 No.12	No.15*	No.20*	No.25

* Except C-BSFW15 and 20, C-BUFN15 and 20

Shape of Support Units

Square

Round

Lineup of Fixed-side and Support-side Support Units

The Fixed side is the side that secures the ball screw shaft. The fixed side normally stands for the side that the motor is installed.

The Support side merely supports the ball screw shaft, and is not fixed to a ball screw shaft.

Shape	Feauture	Fixed Side Product	Photo	Fixed Side Product	Photo	Customer Merit
Square	Standard	Standard		Standard		Industry standard
	For use in a limited space	Compact		Compact		Easy to use in a limited width space. Suitable for small devices.
		Low Profile		Low Profile		Lower profile linear motion units can be made. Recommended to use it together with Compact Nut.
		Small Mounting Hole Pitch		Small Mounting Hole Pitch		Easy to use in a limited width space. Suitable for small devices.
	Reducing Assembly Man-hour	Standard Type with Dowel Holes		Standard Type with Retaining Ring		[BSWG/BSWGN] Easy locating of the housing. [BTN/BTNM] Easy to assemble while preventing the bearing from falling off.
		Standard Type with Damper		Standard Type with Damper		Unnecessary to design a damper mechanism.
		AC Servo Motor Brackets		-	-	Ball screws and motors shaft centering are secured by only mounting and aligning a motor with a build-in pilot.
Round	Standard	Standard		Standard		Industry standard
Round	Reducing Assembly Man-hour	-	-	Standard Type with Retaining Ring		Easy to assemble it while preventing bearings for Support Units from falling off.

Installation process

For information about the installation process of ball screw support units, inspection considerations and precautions, click here.

Precautions on Support Unit Installation

When inserting ball screws into fixed side support units, some cases will be slip-fit and others may be light press-fit cases.

In case of a light-press fit, do not force the bearing onto the screw shaft in a tilted manner, or do not strike the bearing inner ring and support unit housing

If there is any irregularities between the screw shaft and bearing inner ring, do not insert the ball screw forcibly, remove the screw at once and correct the swell on the shaft, then try reassembling.

Compatible Models

Category	Ball Screw	Shaft Collars	Linear Ball Bushings	Flexible Shaft Couplings	Standard Linear Guides
Image

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
BSWN8S-SET

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Shaft Dia. d (Ø)	Surface Treatment	Shaft Height H (mm)	Thickness L (or F) (mm)	Width B (mm)	Basic Load Rating, Dynamic Rating (N)	Basic Load Rating, Static Rating (N)	Oil Seal Applicable Shaft Dia. (φ)	Set
	1 Piece(s)	Available	8 Days or more	10	8	Electroless Nickel	17	23	52	4400	4400	10	A Set of Fixed & Support Sides

Product TOP

Basic Information

Cost Efficient	Standard	Type	Fixed Side Standard Type	Shape	Square Type
Mounting Method	From Top	Bearing Type	Angular Contact Bearing	Bearing Precision	Class 5 (ABEC-5)
Material	1045 Carbon Steel

Please check the type/dimensions/specifications of the part BSWN8S-SET in the Ball Screw Support Unit - Fixed Side, Block Type. series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

type
- BSW
- BSW-SET
- BSWN
- BSWN-SET
- BSWR
- BSWR-SET
Clear
Shaft Dia. d(Ø)
6

8

10

12

15

20

25
Clear
Surface Treatment
- Black Oxide
- Electroless Nickel
- Low Temperature Black Chrome
Clear
Shaft Height H(mm)
13

17

22

23

25

26

28

30

35
Clear
Thickness L (or F)(mm)
20

23

24

25

42

48
Clear
Width B(mm)
42

52

70

80

95

105
Clear
Oil Seal Applicable Shaft Dia.(φ)
10

11.5

12

14

15

20

25

31
Clear
Set
- A Set of Fixed & Support Sides
- Fixed Side Only
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

8 Days or Less
Clear

Specify Alterations

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

Products like this...

Part Number
BSW1022-SET
BSW10S
BSW10S-SET
BSWR10
BSWR10-SET
BSWR1022

Minimum order quantity	Volume Discount	Days to Ship	RoHS	Shaft Dia. d (Ø)	Surface Treatment	Shaft Height H (mm)	Thickness L (or F) (mm)	Width B (mm)	Basic Load Rating, Dynamic Rating (N)	Basic Load Rating, Static Rating (N)	Oil Seal Applicable Shaft Dia. (φ)	Set
1 Piece(s)	Available	8 Days or more	10	10	Black Oxide	22	24	70	7500	4150	14	A Set of Fixed & Support Sides
1 Piece(s)	Available	8 Days or more	10	10	Black Oxide	25	24	70	7500	4150	12	Fixed Side Only
1 Piece(s)	Available	8 Days or more	10	10	Black Oxide	25	24	70	7500	4150	12	A Set of Fixed & Support Sides
1 Piece(s)	Available	8 Days or more	10	10	Low Temperature Black Chrome	25	24	70	7500	4150	14	Fixed Side Only
1 Piece(s)	Available	8 Days or more	10	10	Low Temperature Black Chrome	25	24	70	7500	4150	14	A Set of Fixed & Support Sides
1 Piece(s)	Available	8 Days or more	10	10	Low Temperature Black Chrome	22	24	70	7500	4150	14	Fixed Side Only

Additional Products in this Category

Complementary Products

Spacers for Ball Screw Support Units.
MISUMI Days to Ship : 8 Days or more
Ball Screws - Screw diameter 8 mm, pitch 2 or 4 millimeters.
MISUMI Days to Ship : 8 Days or more
Precision Ball Screws - Screw diameter 6mm or 8mm, pitch 2 millimeters.
MISUMI Days to Ship : 10 Days or more
Ball Screw Support Unit - For the assembly of Ball Screws with Motors.
MISUMI Days to Ship : 8 Days or more
Ball Screw Support Unit - Fixed Side, Round.
MISUMI Days to Ship : Same day or more

MISUMI Unit Example related to this product

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Technical Support: Tel：+52-442-672-7661 ext. 2 then wait and dial 4
E-mail: soportetecnico@misumimex.com; Mon. - Fri. 8 a.m. - 6 p.m.; Technical Inquiry

All Categories

Categories

Applications

Brands

How can we improve?

Ball Screw Support Unit - Fixed Side, Block Type. (BSWN8S-SET)

Specifications

Price list

More Information

Technical Information

Combination of Ball Screws and Support Units

How to Select Support Units Compatible with Ball Screw?

Shape of Support Units

Lineup of Fixed-side and Support-side Support Units

Installation process

Precautions on Support Unit Installation

Compatible Models

Part Number

Basic Information

Configure

Specification/Dimensions

type

Shaft Dia. d(Ø)

Surface Treatment

Shaft Height H(mm)

Thickness L (or F)(mm)

Width B(mm)

Oil Seal Applicable Shaft Dia.(φ)

Set

CAD

Days to Ship

Specify Alterations

Products like this...

Additional Products in this Category

Complementary Products

MISUMI Unit Example related to this product

Tech Support

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