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  • Sehubungan dengan adanya Peraturan Baru Kementerian Perdagangan No.36 Tahun 2023 tentang Pembatasan Impor Barang, MISUMI Indonesia melakukan tindakan pencegahan. Lihat informasi detailnya di sini
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Ball Splines-Hollow Type, Round Flanged, One End Tapped

Ball Splines-Hollow Type, Round Flanged, One End Tapped

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Check FAQ of this product (3 items)

MISUMI

MiSUMi Economy

MISUMI

(i)Caution

  • The positional relationships between the grooves of the spline shafts, the keyways and oil holes of the nuts, and all alterations (wrench slots, planes, etc.) in the 3D model are for reference only, and may differ from the actual situation.

Part Number

Configured Part Number is shown.


Product Overview
1. Ball spline rolls along the spherical groove using the steel ball inside the spline nut, allowing even a single-axis mechanism to perform linear motion while keeping the nut undeviated in the rotation direction.
2. Compared to the combination of guide shaft and linear bushing, ball spline enables linear motion with high sensitivity and high precision, and can withstand higher loads.
3. Ball spline can safely transmit torque even under cantilever load and deliver high durability.
Product Features
1. Shipping within 5 days after placing an order.
2. Drawing-based machining is no longer required, saving the time for design.
3. Spline shaft length can be specified in 1mm increments.
4. Various alterations are available to meet different usage scenarios.
5. This product has a lower price compared to the MISUMI standard products (produced in Japan) and better performance compared to generic products on the market.

■We have professional testing equipment for guaranteed quality
Product Features

■For this product and Generic Products on the Market, we have conducted a service life comparison using a traveling tester.
→Test conditions:
Load: 50kgf
Speed: 40cm/s
Travel distance: 100km
Spline shaft diameter: 8mm
→Test result:
Product Features
* Generic products on the market are similar products randomly purchased by our company from online or offline markets.
* The test data are obtained through testing by our company, which are for reference only.
Dimensional Drawing
Accuracy gradeSpline shaftNut
Type Material Hardness Surface TreatmentType Material Hardness Surface Treatment
Grade NHollowEquivalent to SUJ258HRC～－Round flangedEquivalent to SCR42058HRC～－
Product Drawings (Unit: mm)


Dimension 2
 
Specification Table
Ordering Example
 
Type
Dh8		L
1mm increments		M (Coarse)
Selection		dD1 D2L1HWP.C.DXYZuThickness
deviation
A-B		Basic Rated TorqueBasic Load RatingStatic Allowable Moment
Dynamic Ct
(N·m)		Static C0t
(N·m)		Dynamic C
(kN)		Static C0
(kN)		M01
(N·m)		M02
(N·m)
Tolerance
E-BKFM1670~50010   8310
-0.039		51501018404.58621.0
or Less		35.765.14.37.737.1260
2080~600 12  10355856455.59.55.459.5107.85.910.755.3380
2590~800  18 154265711326.55283135.1243.61015103.5685.9
30100~800   201647758030606.611190.43431119.6148.4932.7

Dimension 3
When ② is configured, the surface will be light yellow, and there may be a color difference.
  The following parts may not be plated and may rust.
  -Cut section
  -Groove part
  -Tapped part
  -Inner hole of spline shaft
 
Dimension 3
Unit: μm
 Max. Runout of Spline Axis Line
Shaft Dia. D~200201~315316~400401~500501~630631~800801~900
872133185236－－－
105983103123151190－
1356718395112137170
16
20
255358707888103124
30
Related Products
■Ball Screws
Precision Ball Screws
Φ8Φ10Φ12Φ15Φ20Φ25
Related ProductsRelated ProductsRelated ProductsRelated ProductsRelated ProductsRelated Products
 
Rolled Ball Screws
Φ8Φ10Φ12Φ15Φ20Φ25
Related ProductsRelated ProductsRelated ProductsRelated ProductsRelated ProductsRelated Products
Precautions
■Precautions for Selection and Use
1. The relative positions of the grooves of spline shaft, the keyways and oil holes of straight nuts, and all the alterations (wrench flat, set screw flat, etc.) in the 3D model are for reference only and may differ from their actual positions.
2. When re-inserting a nut into the spline shaft, be sure to insert it horizontally, otherwise the ball will fall off.
3. As resin parts are used inside the nuts, please use them at temperatures below 80℃.
4. Although the nuts are greased on the inside before leaving the factory, please re-grease them every 2~3 months or every 50km of traveling distance after receipt of the goods, otherwise their use will be impaired.
5. No guarantee is given for the noise level of this product.
6. No guarantee is given that the spline shaft or nuts of this product will fall freely.
7. This product is a machined type, so there will be knife patterns and color difference in its appearance. It is normal for the product to have some scratches or color changes. Please feel free to use.
8. The spline shaft is quenched, and annealed during machining.
  Due to the annealing treatment, the hardness of the machined part + area about 15 mm before and after the part may be reduced (see the following example). And the annealed section is out of the guaranteed range of outer diameter dimensional tolerance.
  Subtract the size of the annealed section when calculating the stroke.
Precautions
The parts that may be reduced in hardness due to annealing are:
·Threaded parts
·Stepped parts
·Tapped parts
·Alterations of wrench flats, set screw flat, retaining ring grooves, and tapped holes
Example of Use

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.
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CAD Download

30
45
60
  1. 1
Part Number
E-BKFM16-[70-500/1]-M10
E-BKFM20
E-BKFM25
E-BKFM30
Part NumberMinimum order quantityVolume DiscountDays to ShipShaft Outer Dia. D
(Ø) 		Shaft Overall Length L
(mm)
1 Piece(s) 10 Day(s) 1670 ～ 500
1 Piece(s) 10 Day(s) 20-
1 Piece(s) 10 Day(s) 25-
1 Piece(s) 10 Day(s) 30-

Loading...

  1. 1
Dimensional Drawing
Dimension 2
Specification Table
Ordering Example
 
Type
Dh8		L
1mm increments		M (Coarse)
Selection		dD1 D2L1HWP.C.DXYZuThickness
deviation
A-B		Basic Rated TorqueBasic Load RatingStatic Allowable Moment
Dynamic Ct
(N·m)		Static C0t
(N·m)		Dynamic C
(kN)		Static C0
(kN)		M01
(N·m)		M02
(N·m)
Tolerance
E-BKFM1670~50010   8310
-0.039		51501018404.58621.0
or Less		35.765.14.37.737.1260
2080~600 12  10355856455.59.55.459.5107.85.910.755.3380
2590~800  18 154265711326.55283135.1243.61015103.5685.9
30100~800   201647758030606.611190.43431119.6148.4932.7
Material Specification
Accuracy gradeSpline shaftNut
Type Material Hardness Surface TreatmentType Material Hardness Surface Treatment
Grade NHollowEquivalent to SUJ258HRC～－Round flangedEquivalent to SCR42058HRC～－
Alterations
Alterations
Dimension 3
When ② is configured, the surface will be light yellow, and there may be a color difference.
  The following parts may not be plated and may rust.
  -Cut section
  -Groove part
  -Tapped part
  -Inner hole of spline shaft
 

Basic Information

Nut Type Round Flanged Type Hollow Shaft End Shape (Left) Tapped
End Shape (Right) Standard Shaft material SUJ2 Equivalent Nut Material SCR420 Equivalent

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4 Part Numbers

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Specification/Dimensions

  • type

    • E-BKFM

    Clear

  • Shaft Outer Dia. D(Ø)

    • 16
    • 20
    • 25
    • 30

    Clear

  • Shaft Overall Length L(mm)

     [70-500/1mm Unit(s)]

    Clear

  • CAD

    • 2D
    • 3D

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Days to Ship

    • All
    • 10 Day(s) or Less

    Clear

Specify Alterations

Frequently asked question (FAQ)

Question: Do the 3D model on the official website and the actual product have the same positional relationships between the grooves of the spline shafts, the keyways and oil holes of the straight cylinder nuts, and all alterations (wrench slots, planes, etc.)?
Answer: They may be different.
Question: Can it be used in high-temperature or special environments?
Answer: The ball spline uses resin parts. Please use it in environments below 80° C and avoid using it under high temperature conditions or in special environments.
Question: Can the nut be removed from the spline shaft?
Answer: As there is a retainer inside the nut, even if removed, the steel ball is less likely to fall. However, it is recommended not to remove it. If it must be removed, please be careful to prevent the steel ball from falling.

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