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Ball Screw Support Units - Fixed Side, Round. With radial bearings.
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- Volume Discount
Uses the two preloaded JIS Class 0 Angular Contact Bearing and is suitable for low speed applications.
- inCAD Components
Part Number
Configured Part Number is shown.
[ ! ]Oil Seal ④ is not included in d=6.
[ ! ]For No.8S and 10S, the I.D. of oil seal is smaller than the previous No.8S and No.10S versions.
[ ! ]It is preloaded to withstand thrust load.
Keep rotational speed within 3,000rpm.
| Type | [ M ]Material | [ S ]Surface Treatment | |
| ①③ | ⑤⑥ | ①③⑤⑥ | |
| BRWZ | 1045 Carbon Steel | 1018 Carbon Steel | Black Oxide |
| BRWZM | Electroless Nickel Plating | ||
Specifications
| Part Number |
| BRWE15 BRWZ15 |
| Number | Part Name | Quantity |
| ① | Bearing Housing | 1 |
| ② | Radial Bearing | 1 Set |
| ③ | Cover | 1 |
| ④ | Oil Seal | 1 |
| ⑤ | Collar | 1 |
| ⑥ | Clamping Nut (with Set Piece) | 1 |
| Part Number | d | L | H | F | E | D | A | P.C.D. | B | L1 | T1 | d1 | d2 | ℓ | M (Fine) | T | Oil Seal Applicable Shaft Dia. | |
| Type | No. | |||||||||||||||||
| BRWZ BRWZM | 6 | 6 | 20 | 7 | 13 | 22.5 | 22 | 35 | 28 | 28 | 6 | 3.5 | 2.9 | 5.5 | 3.5 | M6x0.75 | 12 | - |
| 8S | 8 | 23 | 9 | 14 | 26 | 28 | 43 | 35 | 35 | 7 | 4 | 3.4 | 6.5 | 4 | M8x1.0 | 14 | 10 | |
| 8 | 11.5 | |||||||||||||||||
| 10S | 10 | 26 | 10 | 16 | 29.5 | 34 | 52 | 42 | 42 | 8.5 | 5 | 4.5 | 8 | 4.5 | M10x1.0 | 17 | 12 | |
| 10 | 14 | |||||||||||||||||
| 12 | 12 | 36 | 54 | 44 | 44 | M12x1.0 | 19 | 15 | ||||||||||
| 15 | 15 | 30 | 13 | 17 | 38 | 40 | 63 | 50 | 52 | 14 | 6 | 5.5 | 9.5 | 5.5 | M15x1.0 | 22 | 20 | |
| 20 | 20 | 48 | 18 | 30 | 52 | 57 | 85 | 70 | 68 | 10 | 6.6 | 11 | 6.5 | M20x1.0 | 30 | 25 | ||
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 | |
| No.6L | No.10 | No.15* | ||||||||
* Except C-BSFW15 and 20, C-BUFN15 and 20
Shape of Support Units
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 |
| 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
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.
| Part Number |
|---|
| BRWZ6 |
| BRWZ8 |
| BRWZ8S |
| BRWZ10 |
| BRWZ10S |
| BRWZ12 |
| BRWZ15 |
| BRWZ20 |
| BRWZM6 |
| BRWZM8 |
| BRWZM8S |
| BRWZM10 |
| BRWZM10S |
| BRWZM12 |
| BRWZM15 |
| BRWZM20 |
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Basic Information
| Cost Efficient | Standard | Type | Fixed Side Radial Bearing Type | Shape | Round Shape Type |
|---|---|---|---|---|---|
| Mounting Method | Side Mount | Bearing Type | Radial Bearing | Material | 1045 Carbon Steel |
| Set | Fixed Side Only |
Specification/Dimensions
-
Shaft Dia. d(Ø)
-
Surface Treatment
- Black Oxide
- Electroless Nickel
-
Thickness L (or F)(mm)
-
Outer Dia. A(Ø)
-
Width B(mm)
-
Oil Seal Applicable Shaft Dia.(φ)
-
type
- BRWZ
- BRWZM
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 8 Days or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Additional Products in this Category
- Ball Screw Support Unit - Fixed Side, Block with Shock Absorber.
- Spacers for Ball Screw Support Units.
- Ball Screw Support Unit - Fixed Side, Round.
- Ball Screw Support Unit - Fixed Side, Block Type. compact series.
- Ball Screw Support Unit - Fixed Side, Block Type, Low Profile.
- Ball Screw Support Unit - Support Side, Block Type, Low Profile.
- Ball Screw Support Unit - Fixed Side, Block Type. Product C-Value.
- Ball Screw Support Unit - Fixed Side, Round. Product C-Value.
Complementary Products
-
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
MISUMI Unit Example related to this product
Tech Support
- 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
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