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Ball Screw Support Unit - Fixed Side, Round. (BRWN8S-SET)

Ball Screw Support Unit - Fixed Side, Round. BRWN8S-SET
  • Volume Discount

MISUMI

MISUMI

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

  • inCAD Components

PDFP.2019-800

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Part Number

Configured Part Number is shown.

BRWN8S-SET

Support Units - Fixed Side, Round:Related Image
・Materials
Type[ M ]Material[ S ]Surface Treatment
①③⑥⑦①③⑥⑦
BRW1045 Carbon Steel1018 Carbon SteelBlack Oxide
BRWNElectroless Nickel Plating
BRWRLow Temperature Black Chrome Plating
[ ! ]For No.8S and 10S, the I.D. of oil seal is smaller than the previous No.8S and No.10S versions.
 

Specifications

Part Number
BRW15
■Component Details
NumberPart NameQuantity
①Bearing Housing1
②Angular Contact Bearing Class 51 Set
③Cover1
④Oil Seal2
⑤Hex Socket Head Cap Screw*4
⑥Collar1
⑦Clamping Nut (with Set Piece)1
[ ! ]Oil Seal ④ is not included in No.6.
[ ! ]No.6L, 8S and 8 come 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 BRWR and BRWN are Stainless Steel Type.
Part NumberdLHFEDAP.C.D.BL1T1d1d2ℓM (Fine)TOil Seal Applicable Shaft Dia.
TypeNo.
BRW
BRWN
BRWR		6L62071322.52236282863.53.46.54M6x0.751210
6352.95.53.512-
8S8239142628433535743.46.54M8x1.01410
811.5
10S1029131629.5345242425.554.586M10x1.01712
1014
121236544444M12x1.01915
151532151738406350521265.59.5M15x1.02220
2020522230525785706810106.61110M20x1.03025
25255727305963988079121091513M25x1.53531

Price list

Part NumberBRWBRWNBRWR
TypeNo.Unit PriceVolume Discount RateUnit PriceVolume Discount RateUnit PriceVolume Discount Rate
1~9 pc(s).10 pcs. ~1~9 pc(s).10 pcs. ~1~9 pc(s).10 pcs. ~
BRW
BRWN
BRWR		6L7,0506,7008,2207,8109,1308,670
6
8S
8
10S6,1705,8607,1706,8107,9607,560
10
126,3306,0107,2906,9308,1107,700
157,4107,0408,6008,1709,5609,080
209,3808,91010,68010,15011,87011,280
2510,94010,39013,35012,68014,05013,350

More Information

[ ! ]Details of Support Units Mounting Interface Accuracies and Bearings >> P.655
[ ! ]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 NumberAccuracy class C3BSX0601-BSX0801
BSX0802
BSX1002		-BSX1202
BSX1205		BSX1505---
Accuracy class C5-BSS1002
BSS0802
BSS1202		BSS1004
BSS1205
BSS1204
BSS1210		BSS1010Step 2
BSS15□□		BSS20□□BSS25□□-
Accuracy class C7BSST08022BSSE1002
BSST1004		BSSE0802
BSSE1202		BSSE1004
BSSE1205
BSSE1210
BSST12004
C-BSST1204		-BSSE15□□
BSST15□□		BSSE20□□
BSST20□□		BSSE25□□
BSST25□□		-
Accuracy class C10BSSR08□□
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 SideØ6Ø8Ø10Step 2
Ø12		Ø15Ø20Ø25
Support Units Bearing I.DNo.6No.8SNo.8No.10SNo.1022Step 3
No.12		152No.20*No.25
No.6LNo.10No.15*

* 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.

ShapeFeautureFixed Side ProductPhotoFixed Side ProductPhotoCustomer Merit
SquareStandardStandardStandardIndustry standard
For use in a limited spaceCompactCompactEasy to use in a limited width space.
Suitable for small devices.
Low ProfileLow ProfileLower profile linear motion units can be made.
Recommended to use it together with Compact Nut.
Small Mounting Hole PitchSmall Mounting Hole PitchEasy to use in a limited width space.
Suitable for small devices.
Reducing Assembly Man-hourStandard Type with Dowel HolesStandard 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 DamperStandard Type with DamperUnnecessary 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.
RoundStandardStandardStandardIndustry standard
Reducing Assembly Man-hour--Standard Type with Retaining RingEasy 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

CategoryBall ScrewShaft CollarsLinear Ball BushingsFlexible Shaft CouplingsStandard Linear Guides
ImageBall Screw Support Units - Ball ScrewBall Screw Support Units - Shaft CollarsBall Screw Support Units - Linear Ball BushingsBall Screw Support Units - Flexible Shaft CouplingsBall Screw Support Units - Standard Linear Guides

Part Number 

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  1. 1
Part Number
BRWN8S-SET
Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSShaft Dia. d
(Ø) 		Surface Treatment Thickness L (or F)
(mm) 		Outer Dia. A
(Ø) 		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

108Electroless Nickel1443354400440010A Set of Fixed & Support Sides

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  1. 1
 

Basic Information

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

Please check the type/dimensions/specifications of the part BRWN8S-SET in the Ball Screw Support Unit - Fixed Side, Round. series.

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Specification/Dimensions

  • type

    • BRW
    • BRW-SET
    • BRWN
    • BRWN-SET
    • BRWR
    • BRWR-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

  • Thickness L (or F)(mm)

    • 13
    • 14
    • 16
    • 17
    • 30

    Clear

  • Outer Dia. A(Ø)

    • 35
    • 36
    • 43
    • 52
    • 54
    • 63
    • 85
    • 98

    Clear

  • Width B(mm)

    • 28
    • 35
    • 42
    • 44
    • 52
    • 68
    • 79

    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
    • 8 Days or Less
    • 9 Days or Less
    • 44 Days or Less

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Specify Alterations

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Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSShaft Dia. d
(Ø) 		Surface Treatment Thickness L (or F)
(mm) 		Outer Dia. A
(Ø) 		Width B
(mm) 		Basic Load Rating, Dynamic Rating
(N) 		Basic Load Rating, Static Rating
(N) 		Oil Seal Applicable Shaft Dia.
(φ) 		Set
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