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Ball Splines Round Flanged, Both Ends Stepped
(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 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 of Spline Shaft 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 of Spline Shaft 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 | Material | Hardness | Surface Treatment | |
| Grade N | Solid | 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 |  PSelection |  F1mm increments |  QSelection |  E1mm increments | ||||||||||||||||||||||
| E-BSJM | 8 | 60~300 | 4 | 5 | 6 | When P＝4, 2≤F≤16 When P≥5, 2≤F≤P×5 | 4 | 5 | 6 | When Q＝4, 2≤E≤16 When Q≥5, 2≤E≤Q×5 | ||||||||||||||||||
| 10 | 60~400 | 4 | 5 | 6 | 8 | 4 | 5 | 6 | 8 | |||||||||||||||||||
| 13 | 60~400 | 5 | 6 | 8 | 10 | 5 | 6 | 8 | 10 | |||||||||||||||||||
| 16 | 70~600 | 5 | 6 | 8 | 10 | 12 | 13 | 5 | 6 | 8 | 10 | 12 | 13 | |||||||||||||||
| 20 | 80~700 | 8 | 10 | 12 | 13 | 15 | 16 | 8 | 10 | 12 | 13 | 15 | 16 | |||||||||||||||
| 25 | 90~900 | 8 | 10 | 12 | 13 | 15 | 16 | 20 | 8 | 10 | 12 | 13 | 15 | 16 | 20 | |||||||||||||
| 30 | 100~900 | 10 | 12 | 13 | 15 | 16 | 20 | 25 | 10 | 12 | 13 | 15 | 16 | 20 | 25 | |||||||||||||
| Type of Spline Shaft | Dh8 | D1 | D2 | L1 | H | W | P.C.D | X | Y | Z | u | 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-BSJM | 8 | 16 | 0 -0.027 | 32 | 27 | 8 | 7.5 | 24 | 3.4 | 6.5 | 4.5 | 1.5 | 3.3 | 6 | 0.8 | 1.4 | 3.5 | 25.2 |
| 10 | 21 | 0 -0.033 | 42 | 33 | 9 | 10.5 | 32 | 4.5 | 8 | 4 | 13.3 | 23.8 | 2.6 | 3.9 | 9.5 | 85.3 | ||
| 13 | 24 | 44 | 36 | 11 | 33 | 4.5 | 19.6 | 36.4 | 3.2 | 5.4 | 15 | 124.6 | ||||||
| 16 | 31 | 0 -0.039 | 51 | 50 | 10 | 18 | 40 | 6 | 2 | 35.7 | 65.1 | 4.3 | 7.7 | 37.1 | 260 | |||
| 20 | 35 | 58 | 56 | 45 | 5.5 | 9.5 | 5.4 | 59.5 | 107.8 | 5.9 | 10.7 | 55.3 | 380 | |||||
| 25 | 42 | 65 | 71 | 13 | 26.5 | 52 | 8 | 3 | 135.1 | 243.6 | 10 | 15 | 103.5 | 685.9 | ||||
| 30 | 47 | 75 | 80 | 30 | 60 | 6.6 | 11 | 190.4 | 343 | 11 | 19.6 | 148.4 | 932.7 | |||||
Only one of PKC and TA can be selected.Only one of QKC and TB can be selected.When Spline Shaft ⑥ is configured, the surface will be light yellow, and there may be a color difference.Due to the surface treatment process, the following parts are more susceptible to rust.
-Cut section
-Groove part
-Cut section
The relative positions of the grooves of spline shaft, the keyways and oil holes of nuts, and all the alterations (wrench flat, set screw flat, etc.) in the 3D modelare for reference only and may differ from their actual positions.
| P·Q | b | t | ||
| Tolerance (N9) | Tolerance | |||
| 8·10 | 3 | -0.004 -0.029 | 1.8 | +0.1 0 |
| 12 | 4 | 0 -0.030 | 2.5 | |
| 13～16 | 5 | 3.0 | ||
| 20 | 6 | 3.5 | ||
| 25 | 8 | 0 -0.036 | 4.0 | +0.2 0 |
| P·Q | m | d | Applicable Retaining Ring | ||
| Tolerance | Tolerance | ||||
| 3 | 0.5 | +0.05 0 | 2 | +0.06 0 | JIS E Type 2 |
| 4 | 0.7 | +0.1 0 | 3 | JIS E Type 3 | |
| 5 | 4 | +0.075 0 | JIS E Type 4 | ||
| 6 | 5.05 | JIS E Type 5 | |||
| 8 | 0.9 | 6.05 | JIS E Type 6 | ||
| 10 | 1.15 | +0.14 0 | 9.6 | 0 -0.09 | JIS C Type 10 |
| 12 | 11.5 | 0 -0.11 | JIS C Type 12 | ||
| 13 | 12.4 | JIS C Type 13 | |||
| 15 | 14.3 | JIS C Type 15 | |||
| 16 | 15.2 | JIS C Type 16 | |||
| 20 | 1.35 | 19 | 0 -0.21 | JIS C Type 20 | |
| 25 | 23.9 | JIS C Type 25 |
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 | |||||||
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
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.
Loading...
| Part Number |
|---|
| E-BSJM8-[60-300/1]-P[4,5,6]-F[2-30/1]-Q[4,5,6]-E[2-30/1] |
| E-BSJM10-[60-400/1]-P[4,5,6,8]-F[2-40/1]-Q[4,5,6,8]-E[2-40/1] |
| E-BSJM13-[60-400/1]-P[5,6,8,10]-F[2-50/1]-Q[5,6,8,10]-E[2-50/1] |
| E-BSJM16-[70-600/1]-P[5,6,8,10,12,13]-F[2-65/1]-Q[5,6,8,10,12,13]-E[2-65/1] |
| E-BSJM20-[80-700/1]-P[8,10,12,13,15,16]-F[2-80/1]-Q[8,10,12,13,15,16]-E[2-80/1] |
| E-BSJM25-[90-900/1]-P[8,10,12,13,15,16,20]-F[2-100/1]-Q[8,10,12,13,15,16,20]-E[2-100/1] |
| E-BSJM30-[100-900/1]-P[10,12,13,15,16,20,25]-F[2-125/1]-Q[10,12,13,15,16,20,25]-E[2-125/1] |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Shaft Outer Dia. D (Ø) | Shaft Overall Length L (mm) | Spline shaft Left end Stepped shaft Dia. [P] (mm) | Spline shaft Left end Stepped length [F] (mm) | Spline shaft Right end Stepped shaft Dia. [Q] (mm) | Spline shaft Right end Stepped length [E] (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | 12 Day(s) | 8 | 60 ～ 300 | 4 ～ 6 | 2 ～ 30 | 4 ～ 6 | 2 ～ 30 | ||
- | 1 Piece(s) | 12 Day(s) | 10 | 60 ～ 400 | 4 ～ 8 | 2 ～ 40 | 4 ～ 8 | 2 ～ 40 | ||
- | 1 Piece(s) | 12 Day(s) | 13 | 60 ～ 400 | 5 ～ 10 | 2 ～ 50 | 5 ～ 10 | 2 ～ 50 | ||
- | 1 Piece(s) | 12 Day(s) | 16 | 70 ～ 600 | 5 ～ 13 | 2 ～ 65 | 5 ～ 13 | 2 ～ 65 | ||
- | 1 Piece(s) | 12 Day(s) | 20 | 80 ～ 700 | 8 ～ 16 | 2 ～ 80 | 8 ～ 16 | 2 ～ 80 | ||
- | 1 Piece(s) | 12 Day(s) | 25 | 90 ～ 900 | 8 ～ 20 | 2 ～ 100 | 8 ～ 20 | 2 ～ 100 | ||
- | 1 Piece(s) | 12 Day(s) | 30 | 100 ～ 900 | 10 ～ 25 | 2 ～ 125 | 10 ～ 25 | 2 ～ 125 |
Loading...
Dimensional Drawing
| Accuracy grade | Spline shaft | Nut | ||||||
| Type |  Material |  Hardness |  Surface Treatment | Type | Material | Hardness | Surface Treatment | |
| Grade N | Solid | Equivalent to SUJ2 | 58HRC～ | － | Round flanged | Equivalent to SCR420 | 58HRC～ | － |
Specification Table
 Type |  Dh8 |  L1mm increments |  PSelection |  F1mm increments |  QSelection |  E1mm increments | ||||||||||||||||||||||
| E-BSJM | 8 | 60~300 | 4 | 5 | 6 | When P＝4, 2≤F≤16 When P≥5, 2≤F≤P×5 | 4 | 5 | 6 | When Q＝4, 2≤E≤16 When Q≥5, 2≤E≤Q×5 | ||||||||||||||||||
| 10 | 60~400 | 4 | 5 | 6 | 8 | 4 | 5 | 6 | 8 | |||||||||||||||||||
| 13 | 60~400 | 5 | 6 | 8 | 10 | 5 | 6 | 8 | 10 | |||||||||||||||||||
| 16 | 70~600 | 5 | 6 | 8 | 10 | 12 | 13 | 5 | 6 | 8 | 10 | 12 | 13 | |||||||||||||||
| 20 | 80~700 | 8 | 10 | 12 | 13 | 15 | 16 | 8 | 10 | 12 | 13 | 15 | 16 | |||||||||||||||
| 25 | 90~900 | 8 | 10 | 12 | 13 | 15 | 16 | 20 | 8 | 10 | 12 | 13 | 15 | 16 | 20 | |||||||||||||
| 30 | 100~900 | 10 | 12 | 13 | 15 | 16 | 20 | 25 | 10 | 12 | 13 | 15 | 16 | 20 | 25 | |||||||||||||
| Type | Dh8 | D1 | D2 | L1 | H | W | P.C.D | X | Y | Z | u | 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-BSJM | 8 | 16 | 0 -0.027 | 32 | 27 | 8 | 7.5 | 24 | 3.4 | 6.5 | 4.5 | 1.5 | 3.3 | 6 | 0.8 | 1.4 | 3.5 | 25.2 |
| 10 | 21 | 0 -0.033 | 42 | 33 | 9 | 10.5 | 32 | 4.5 | 8 | 4 | 13.3 | 23.8 | 2.6 | 3.9 | 9.5 | 85.3 | ||
| 13 | 24 | 44 | 36 | 11 | 33 | 4.5 | 19.6 | 36.4 | 3.2 | 5.4 | 15 | 124.6 | ||||||
| 16 | 31 | 0 -0.039 | 51 | 50 | 10 | 18 | 40 | 6 | 2 | 35.7 | 65.1 | 4.3 | 7.7 | 37.1 | 260 | |||
| 20 | 35 | 58 | 56 | 45 | 5.5 | 9.5 | 5.4 | 59.5 | 107.8 | 5.9 | 10.7 | 55.3 | 380 | |||||
| 25 | 42 | 65 | 71 | 13 | 26.5 | 52 | 8 | 3 | 135.1 | 243.6 | 10 | 15 | 103.5 | 685.9 | ||||
| 30 | 47 | 75 | 80 | 30 | 60 | 6.6 | 11 | 190.4 | 343 | 11 | 19.6 | 148.4 | 932.7 | |||||
Alterations
Only one of PKC and TA can be selected.Only one of QKC and TB can be selected.When ⑥ is configured, the surface will be light yellow, and there may be a color difference.Due to the surface treatment process, the following parts are more susceptible to rust.
-Cut section
-Groove part
-Cut section
The relative positions of the grooves of spline shaft, the keyways and oil holes of 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.Basic Information
| Nut Type | Round Flanged | Type | Solid Shaft | End Shape (Left) | Stepped |
|---|---|---|---|---|---|
| End Shape (Right) | Stepped | Shaft material | SUJ2 Equivalent | Nut Material | SCR420 Equivalent |
Specification/Dimensions
-
type
- E-BSJM
-
Shaft Outer Dia. D(Ø)
-
Shaft Overall Length L(mm)
-
Spline shaft Left end Stepped shaft Dia. [P](mm)
-
Spline shaft Left end Stepped length [F](mm)
-
Spline shaft Right end Stepped shaft Dia. [Q](mm)
-
Spline shaft Right end Stepped length [E](mm)
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 12 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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.
Additional Products in this Category
- Ball Splines - Standard
- Ball Splines - Both Ends Stepped and Threaded
- Ball Splines Key Provided Straight Nut, One End Stepped
- Ball Splines Round Flanged, One End Double Stepped and Threaded
- Ball Splines-Hollow Type, Round Flanged
- Ball Splined-Hollow Type, Key Provided Straight Nut, One End Tapped
- Spline Nut
- Miniature Hexagonal Spline, Single Nut (HTK) / Double Nut (HTKW) Series
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