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Ball Splines -Both Ends Stepped and Threaded (Part Numbers)
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For the customer who orders 5 pcs. or more for the same part number, the profitable and convenient volume discount rate is set up.
- inCAD Components
Part Number
Configured Part Number is shown.
[ ! ]When selecting Overall Length (L Dimension), check the Annealing Range. >> Click here
[ ! ]Accuracy >> Click here
・Materials
| Both Ends Stepped and Threaded | Spline Shaft [ M ] 52100 Bearing Steel Nut [ M ] SCM415 Alloy Steel (JIS) Equivalent [ H ] Hardness: 58HRC~ |
Spline Shaft, Nut [ M ] 440C Stainless Steel [ H ] Hardness: 55HRC~ |
| Nut 1 pc. | Nut 1 pc. | |
| With Round Flange Nut | BSYM | BSYMS |
| With Compact Flange Nut | BSYN | - |
| With Straight Nut | BSYS | BSYSS |
Specifications
| Part Number | - | L | - | F | - | E | - | B | - | S | - | P | - | Q | - | M | - | N |
 BSYS8 BSYS8G BSYS8L | - - - | 250 250 250 | - - - | F20 F20 F20 | - - - | E20 E20 E20 | - - - | B8 B8 B8 | - - - | S8 S8 S8 | - - - | P6 P6 P6 | - - - | Q6 Q6 Q6 | - - - | M6 M6 M6 | - - - | N6 N6 N6 |
■Spline Shafts
[ ! ]For BSYSS and BSYMS, only *marked sizes are available, and the Max. L and Y dimensions are in ( ).
[ ! ]For BSYN, only No. 6, 8 and 10 are available.
| Part Number | 1mm Increment | P, Q | M (Coarse), N (Coarse) (M≤P, N≤Q) | D | (Y) | Mass (kg/m) | |||||||||||||||||||||||
| Type | No. | L | F, E | B, S | 1-Nut Type | ||||||||||||||||||||||||
| 1-Nut Type | min~max | ||||||||||||||||||||||||||||
| BSYM BSYN BSYS BSYMS BSYSS | *6 | 60~400 (190) | When P, Q=3 4≤F, E≤9 When P, Q=4 4≤F, E≤16 When P, Q≥5 4≤F, E≤P, Qx5 [ ! ]F, E≥B, S+2 | When M, N=3 2≤B, S≤M, Nx3 When M, N=4 2≤B, S≤M, Nx4 When M, N≥5 2≤B, S≤M, Nx5 [ ! ]B, S≥Pitchx3+ℓ [ ! ]For Stainless Steel materials, M, N≤B, S≤M, Nx3 | 3 | 4 | 5 | 3 | 4 | 5 | 6 | 52~392 (182) | 0.23 | ||||||||||||||||
| *8 | 60~400 (190) | 4 | 5 | 6 | 4 | 5 | 6 | 8 | 52~392 (182) | 0.39 | |||||||||||||||||||
| *10 | 60~600 (390) | 4 | 5 | 6 | 8 | 4 | 5 | 6 | 8 | 10.4 | 52~592 (382) | 0.65 | |||||||||||||||||
| *13 | 60~600 (390) | 5 | 6 | 8 | 10 | 5 | 6 | 8 | 10 | 13.4 | 52~592 (382) | 1.11 | |||||||||||||||||
| *16 | 70~600 (390) | 5 | 6 | 8 | 10 | 12 | 13 | 6 | 8 | 10 | 12 | 16.6 | 62~592 (382) | 1.65 | |||||||||||||||
| 20 | 80~700 | 8 | 10 | 12 | 13 | 15 | 16 | 6 | 8 | 10 | 12 | 16 | 20.6 | 72~692 | 2.57 | ||||||||||||||
| 25 | 90~900 | 8 | 10 | 12 | 13 | 15 | 16 | 20 | 6 | 8 | 10 | 12 | 16 | 20 | 25.8 | 82~892 | 4.04 | ||||||||||||
| 30 | 100~1150 | 10 | 12 | 13 | 15 | 16 | 20 | 25 | 8 | 10 | 12 | 16 | 20 | 24 | 30.8 | 92~1142 | 5.85 | ||||||||||||
[ ! ]For BSYN, only No. 6, 8 and 10 are available.
■Round Flange Nuts / Compact Flange Nuts
[ ! ]Dimensions in ( ) are for 440C Stainless Steel. [ ! ]Allowable static moment M01 is a value measured when a single nut is used, and M02 is a value measured when two nuts are used.
| No. | D (h6) | L | Df | H | P.C.D. | d1 | d2 | h | W | d | B | Basic Rated Torque | Basic Load Rating | Allowable Static Moment | Mass (kg) | |||
| Dynamic Ct (N·m) | Static C0t (N·m) | Dynamic C (kN) | Static C0 (kN) | M01 (N·m) | M02 (N·m) | |||||||||||||
| 6 | 14 | 25 | 30 | 6 | 22 | 3.5 | 6 | 3.1 | 6.5 | 1.5 | 18 | 3.8 | 7 | 1.2 | 2.1 | 5 | 36 | 0.03 |
| 8 | 16 | 32 | 24 | 21 | 4.8 | 8.7 | 1.2 | 2.1 | 5 | 36 | 0.04 | |||||||
| 10 | 21 | 40 (33) | 42 (41) | 6 (8) | 32 (30) | 4.5 | 8 | 4.4 (5.3) | 14 (8.5) | 25 | 19 (11) | 34 (21) | 3.8 (2.4) | 6.9 (4.3) | 26 (15) | 181 (102) | 0.09 | |
| 13 | 24 | 44 (36) | 44 (45) | 7 (8) | 33 (34) | 15 (10) | - | 28 (20) | 52 (37) | 4.6 (3.3) | 8.3 (5.9) | 36 (22) | 251 (148) | 0.11 | ||||
| 16 | 31 | 50 | 51 | 7 | 40 | 4.4 | 18 | 51 | 93 | 6.2 | 11.1 | 56 | 386 | 0.2 | ||||
| 20 | 35 | 63 | 58 | 9 | 45 | 5.5 | 9.5 | 5.4 | 22.5 | 2 | 85 | 154 | 8.5 | 15.3 | 83 | 611 | 0.3 | |
| 25 | 42 | 71 | 65 | 52 | 26.5 | 193 | 348 | 15.4 | 27.7 | 173 | 1248 | 0.4 | ||||||
| 30 | 47 | 80 | 75 | 10 | 60 | 6.6 | 11 | 6.5 | 30 | 2.5 | 272 | 490 | 18.5 | 33.3 | 212 | 1581 | 0.57 | |
■Straight Nuts
[ ! ]Dimensions in ( ) are for 440C Stainless Steel. [ ! ]Allowable static moment M01 is a value measured when a single nut is used, and M02 is a value measured when two nuts are used.
| No. | D (h6) | L | b | t +0.05 ++0 ( ) | d | α | Basic Rated Torque | Basic Load Rating | Allowable Static Moment | Mass (kg) | Dimension of Key (Included) | |||||||||
| Tolerance | Dynamic Ct (N·m) | Static C0t (N·m) | Dynamic C (kN) | Static C0 (kN) | M01 (N·m) | M02 (N·m) | B | h | L1 | R | ||||||||||
| Tolerance | Tolerance | |||||||||||||||||||
| 6 | 14 | 25 | 2.5 | +0.014 +0.14 | 1.2 | 1.5 | 15° | 3.8 | 7 | 1.2 | 2.1 | 5 | 36 | 0.012 | 2.5 | +0.016 +0.006 | 2.5 | -0.25 -0.025 | 10.5 | 1.25 |
| 8 | 16 | 25° | 4.8 | 8.7 | 1.2 | 2.1 | 5 | 36 | 0.013 | 10.5 | ||||||||||
| 10 | 21 | 40 (33) | 3 | 1.5 | - | 19 (11) | 34 (21) | 3.8 (2.4) | 6.9 (4.3) | 26 (15) | 181 (102) | 0.06 | 3 | 3 | 17 (14) | 1.5 | ||||
| 13 | 24 | 44 (36) | 28 (20) | 52 (37) | 4.6 (3.3) | 8.3 (5.9) | 36 (22) | 251 (148) | 0.07 | 17 (14) | ||||||||||
| 16 | 31 | 50 | 3.5 | +0.018 +0.14 | 2 | 51 | 93 | 6.2 | 11.1 | 56 | 386 | 0.15 | 3.5 | +0.024 +0.012 | 3.5 | -0.25 -0.030 | 18 | 1.75 | ||
| 20 | 35 | 63 | 4 | 2.5 | 2 | 85 | 154 | 8.5 | 15.3 | 83 | 611 | 0.2 | 4 | 4 | 29 | 2 | ||||
| 25 | 42 | 71 | 193 | 348 | 15.4 | 27.7 | 173 | 1248 | 0.29 | 33 | ||||||||||
| 30 | 47 | 80 | 2.5 | 272 | 490 | 18.5 | 33.3 | 212 | 1581 | 0.37 | 42 | |||||||||
Alterations
Orientation between wrench flats or set screw flats to the spline nut keyway or flange counterbores are random and cannot be specified.
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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| Part Number |
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More Information
Basic Information
| End Shape (Left) | Stepped Threaded | End Shape (Right) | Stepped Threaded | Type | Solid |
|---|---|---|---|---|---|
| Number of Nuts(pc(s).) | 1 | Ball Recirculating Type | Single |
Specification/Dimensions
-
Nut Type
- Straight
- Flanged Type
-
Shaft O.D. D(Ø)
-
Shaft material
- 440C Stainless Steel
- 52100 Bearing Steel Equivalent
-
Nut Overall Length(mm)
-
Nut O.D.(Ø)
-
Shaft Total Length L(mm)
-
Nut Material
- SCM415 Alloy Steel (JIS) Equivalent
- 440C Stainless Steel
-
Grease
- ET-100K
- LG2
- Standard (S2)
-
B(mm)
-
E(mm)
-
F(mm)
-
M(mm)
-
N(mm)
-
P(mm)
-
Q(mm)
-
S(mm)
-
type
- BSYM
- BSYMS
- BSYN
- BSYS
- BSYSS
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 12 Days or Less
- 13 Days or Less
- 14 Days or Less
- 15 Days 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 questions (FAQ)
- 質問: Can I remove the ball spline nut?
- 回答: "Yes. The balls do not fall out when the spline shaft is pulled out. Once the nuts are removed from the spline shaft, reassemble the ball spline while confirming matching numbers, character orientations, and positional relationship of these parts. Nuts and shafts are offered as a set product. When using multiple pieces of them, do not change the default combination."
- 質問: What is the life expectancy of a ball spline?
- 回答: The theoretical life can be calculated using the formulas found here: https://us.misumi-ec.com/pdf/fa/2012/p1_0305.pdf
- 質問: What is the accuracy of the ball spline?
- 回答: Ball spline accuracy can be found here: https://us.misumi-ec.com/pdf/fa/2012/p1_0305.pdf
- 質問: Do you sell ball spline nuts separately
- 回答: We do not sell ball spline nuts separately. They must be purchased as a set.
Additional Products in this Category
- Needle Bearing Guide Sets
- Ball Splines - Standard
- Ball Splines - One End Tapped
- Ball Splines - One End Threaded and Stepped, One End Tapped
- Ball Splines - Both Ends Tapped
- Ball Splines - One End Stepped
- Ball Splines - Both Ends Stepped and Tapped
- Hexagon Shape Slide Guide - Set or Nut and Shaft Separate, NXO Series
Complementary Products
-
Shaft Supports - T-shape, slim body, with top groove. Shaft adjustment with screw.
MISUMI Days to Ship : Same day 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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