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Product DetailSpecification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
-
type
- E-BKHM
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Shaft Outer Dia. D(Ø)
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Shaft Overall Length L(mm)
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CADCAD
- 2D
- 3D
Days to ShipSố ngày giao hàng
-
- Alltất cả các
- 13 Day(s) or Less
Specify AlterationsChỉ định thay đổi
Ball Splines-Hollow Type, Round Flanged, Both End Tapped (Part Number)
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Similar Products
Product DetailProduct Overview of Spline Shaft
1. Spline Shaft 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, Spline Shaft enables linear motion with high sensitivity and high precision, and can withstand higher loads.
3. Spline Shaft can safely transmit torque even under cantilever load and deliver high durability.
2. Compared to the combination of guide shaft and linear bushing, Spline Shaft enables linear motion with high sensitivity and high precision, and can withstand higher loads.
3. Spline Shaft can safely transmit torque even under cantilever load and deliver high durability.
Product Features of Spline Shaft
1. Spline Shaft 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 of Spline Shaft 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 of Spline Shaft
■For this product and Generic Products on the Market, we have conducted a service life comparison using a traveling tester.
→Test conditions of Spline Shaft:
Load: 50kgf
Speed: 40cm/s
Travel distance: 100km
Spline Shaft diameter: 8mm
→Test result of Spline Shaft:
* Generic products of Spline Shaft 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.
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 of Spline Shaft 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 of Spline Shaft
■For this product and Generic Products on the Market, we have conducted a service life comparison using a traveling tester.
→Test conditions of Spline Shaft:
Load: 50kgf
Speed: 40cm/s
Travel distance: 100km
Spline Shaft diameter: 8mm
→Test result of Spline Shaft:
* Generic products of Spline Shaft 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 of Spline Shaft
| Accuracy grade | Spline shaft | Nut | ||||||
| Type of Spline Shaft |  Material |  Hardness |  Surface Treatment | Type of Spline Shaft | Material | Hardness | Surface Treatment | |
| Grade N | Hollow | Equivalent to SUJ2 | 58HRC～ | － | Round flanged | Equivalent to SCR420 | 58HRC～ | － |
Product Drawings of Spline Shaft (Unit: mm)
Specification Table of Spline Shaft
 Type of Spline Shaft |  Dh8 |  L1mm increments |  M (Coarse)· N (Coarse)Selection | d | D1 | D2 | L1 | H | W | P.C.D | X | Y | Z | u | Thickness deviation A-B | Basic Rated Torque | Basic Load Rating | Static Allowable Moment | |||||||
| Dynamic Ct (N·m) | Static C0t (N·m) | Dynamic C (kN) | Static C0 (kN) | M01 (N·m) | M02 (N·m) | ||||||||||||||||||||
| Tolerance | |||||||||||||||||||||||||
| E-BKHM | 16 | 70~500 | 10 | 8 | 31 | 0 -0.039 | 51 | 50 | 10 | 18 | 40 | 4.5 | 8 | 6 | 2 | 1.0 or Less | 35.7 | 65.1 | 4.3 | 7.7 | 37.1 | 260 | |||
| 20 | 80~600 | 12 | 10 | 35 | 58 | 56 | 45 | 5.5 | 9.5 | 5.4 | 59.5 | 107.8 | 5.9 | 10.7 | 55.3 | 380 | |||||||||
| 25 | 90~800 | 18 | 15 | 42 | 65 | 71 | 13 | 26.5 | 52 | 8 | 3 | 135.1 | 243.6 | 10 | 15 | 103.5 | 685.9 | ||||||||
| 30 | 100~800 | 20 | 16 | 47 | 75 | 80 | 30 | 60 | 6.6 | 11 | 190.4 | 343 | 11 | 19.6 | 148.4 | 932.7 | |||||||||
When Spline Shaft 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
Unit: μm
| Max. Runout of Spline Axis Line | |||||||
| Spline Shaft Dia. D | ~200 | 201~315 | 316~400 | 401~500 | 501~630 | 631~800 | 801~900 |
| 8 | 72 | 133 | 185 | 236 | － | － | － |
| 10 | 59 | 83 | 103 | 123 | 151 | 190 | － |
| 13 | 56 | 71 | 83 | 95 | 112 | 137 | 170 |
| 16 | |||||||
| 20 | |||||||
| 25 | 53 | 58 | 70 | 78 | 88 | 103 | 124 |
| 30 | |||||||
Related Products of Spline Shaft
Precautions of Spline Shaft
■Precautions for Selection and Use of Spline Shaft
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 actualpositions.
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 outerdiameter dimensional tolerance.
Subtract the size of the annealed section when calculating the stroke.
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 actualpositions.
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 outerdiameter dimensional tolerance.
Subtract the size of the annealed section when calculating the stroke.
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
·Threaded parts
·Stepped parts
·Tapped parts
·Alterations of wrench flats, set screw flat, retaining ring grooves, and tapped holes
Example Use of Spline Shaft
Part Number
- Incomplete part number.
Please use left hand selections to complete a part number.Incomplete part number.
Please use left hand selections to complete a part number.
Loading...Tải…
| Part Number |
|---|
| E-BKHM16-[70-500/1]-M10-N10 |
| E-BKHM20-[80-600/1]-M12-N12 |
| E-BKHM25-[90-800/1]-M18-N18 |
| E-BKHM30-[100-800/1]-M20-N20 |
| Part Number | Price | Minimum Order Qty. | Volume Discount | Days to ShipSố ngày giao hàng | Shaft Outer Dia. D (Ø) | Shaft Overall Length L (mm) |
|---|---|---|---|---|---|---|
- | 1 Piece(s) | 13 Day(s) | 16 | 70 ～ 500 | ||
- | 1 Piece(s) | 13 Day(s) | 20 | 80 ～ 600 | ||
- | 1 Piece(s) | 13 Day(s) | 25 | 90 ～ 800 | ||
- | 1 Piece(s) | 13 Day(s) | 30 | 100 ～ 800 |
Loading...Tải…
Dimensional Drawing
Specification Table
 Type |  Dh8 |  L1mm increments |  M (Coarse)· N (Coarse)Selection | d | D1 | D2 | L1 | H | W | P.C.D | X | Y | Z | u | Thickness deviation A-B | Basic Rated Torque | Basic Load Rating | Static Allowable Moment | |||||||
| Dynamic Ct (N·m) | Static C0t (N·m) | Dynamic C (kN) | Static C0 (kN) | M01 (N·m) | M02 (N·m) | ||||||||||||||||||||
| Tolerance | |||||||||||||||||||||||||
| E-BKHM | 16 | 70~500 | 10 | 8 | 31 | 0 -0.039 | 51 | 50 | 10 | 18 | 40 | 4.5 | 8 | 6 | 2 | 1.0 or Less | 35.7 | 65.1 | 4.3 | 7.7 | 37.1 | 260 | |||
| 20 | 80~600 | 12 | 10 | 35 | 58 | 56 | 45 | 5.5 | 9.5 | 5.4 | 59.5 | 107.8 | 5.9 | 10.7 | 55.3 | 380 | |||||||||
| 25 | 90~800 | 18 | 15 | 42 | 65 | 71 | 13 | 26.5 | 52 | 8 | 3 | 135.1 | 243.6 | 10 | 15 | 103.5 | 685.9 | ||||||||
| 30 | 100~800 | 20 | 16 | 47 | 75 | 80 | 30 | 60 | 6.6 | 11 | 190.4 | 343 | 11 | 19.6 | 148.4 | 932.7 | |||||||||
Material Specification
| Accuracy grade | Spline shaft | Nut | ||||||
| Type |  Material |  Hardness |  Surface Treatment | Type | Material | Hardness | Surface Treatment | |
| Grade N | Hollow | Equivalent to SUJ2 | 58HRC～ | － | Round flanged | Equivalent to SCR420 | 58HRC～ | － |
Alterations
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
Unit: μm
| Max. Runout of Spline Axis Line | |||||||
| Shaft Dia. D | ~200 | 201~315 | 316~400 | 401~500 | 501~630 | 631~800 | 801~900 |
| 8 | 72 | 133 | 185 | 236 | － | － | － |
| 10 | 59 | 83 | 103 | 123 | 151 | 190 | － |
| 13 | 56 | 71 | 83 | 95 | 112 | 137 | 170 |
| 16 | |||||||
| 20 | |||||||
| 25 | 53 | 58 | 70 | 78 | 88 | 103 | 124 |
| 30 | |||||||
Basic InformationThông tin cơ bản
| Nut Type | Round Flanged | Type | Hollow Shaft | End Shape (Left) | Tapped |
|---|---|---|---|---|---|
| End Shape (Right) | Tapped | Shaft material | SUJ2 Equivalent | Nut Material | SCR420 Equivalent |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer toCác thông số kỹ thuật và kích thước của mã sản phẩm có thể không được bao phủ đầy đủ. Để biết chi tiết chính xác, hãy tham khảo manufacturer catalogsdanh mục nhà sản xuất ..
Frequently asked question (FAQ)FAQ
- Question: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:Answer: They may be different.
- Question:Question: Can it be used in high-temperature or special environments?
- Answer: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:Question: Can the nut be removed from the spline shaft?
- Answer: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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