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Smallest Nut Outer Diameter
For complete product overview and details on Precision Ball Screws - Thread Diameter 10, Lead 2 ,4 or 10, Precision Grade C3, C5 or C7 see the sections below:
Part Number
Configured Part Number is shown.
Nut Type | Type | Accuracy Grade | Shaft Dia. | Lead | Screw Shaft | Nut | ||
[ M ]Material | [ H ]Hardness | [ M ]Material | [ H ]Hardness | |||||
Standard Nut | BSX | C3 | 10 | 2 | * 4150 Alloy Steel | * Induction Hardened 58~62HRC | JIS SCM420 | Carburized 58~62HRC |
BSS | C5 | 2, 4, 10 | ||||||
BSSE | C7 | 2, 4 |
Part Number | - | L |
BSX1002 BSS1004L BSSE1004G | - - - | 200 320 150 |
Nut Type | Accuracy Grade | Part Number | 1mm Increment | Y | A | B | Z | W | Ball Dia. | Ball Center Dia. | Screw Root Dia. | Number of Circuits | Basic Load Rating | Axial Play | Preload Torque N·cm | Twisting Direction | |||
Type | Screw Shaft O.D. | Lead | L | C (Dynamic) kN | Co (Static) kN | ||||||||||||||
Standard Nut | C3 | BSX | 10 | 02 | 100~310 | L-57 | 30 | 25 | 10 | 11.5 | 1.5875 | 10.3 | (8.6) | 2.5 turns, 1 row | 1.41 | 1.65 | 0 (Preloaded) | 0.3~2.5 | Right |
C5 | BSS | 100~315 | 27 | 22 | 8 | 10 | 2.25 | 3.3 | 0.005 or Less | 0.5 or Less | |||||||||
C7 | BSSE | 0.030 or Less | - | ||||||||||||||||
C5 | BSS | 04 | 150~380 | L-70 | - | - | - | - | 2.3812 | 10.6 | (8.1) | 3.35 | 5.9 | 0.005 or Less | 1.0 or Less | ||||
C7 | BSSE | 0.030 or Less | - | Right | |||||||||||||||
C5 | BSS | 10 | 150~450 | L-73 | 1.5 turns, 1 row | 2.2 | 3.5 | 0.005 or Less | 1.0 or Less | ||||||||||
kgf=Nx0.101972 |
Nut Type | Accuracy Grade | Part Number | Unit Price 1~4 pc(s). | |||||||
L100~149 | L150~200 | L201~248 | L249~250 | L251~310 | L311~315 | L316~380 | L381~450 | |||
Standard Nut | C3 | BSX1002 | 43,200 | 43,200 | 49,230 | 49,230 | 49,230 | - | - | - |
C5 | BSS1002 | 38,700 | 38,700 | 38,700 | 47,970 | 47,970 | 47,970 | - | - | |
C7 | BSSE1002 | 35,460 | 35,460 | 35,460 | 44,730 | 44,730 | 44,730 | - | - | |
C5 | BSS1004 | - | 39,150 | 39,150 | 39,150 | 46,980 | 46,980 | 46,980 | - | |
C7 | BSSE1004 | - | 35,910 | 35,910 | 35,910 | 43,740 | 43,740 | 43,740 | - | |
C5 | BSS1010 | - | 51,260 | 51,260 | 51,260 | 54,150 | 54,150 | 54,150 | 54,150 |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
Part Number |
---|
BSS1002-[100-315/1] |
BSS1002G-[100-315/1] |
BSS1002L-[100-315/1] |
BSS1004-[150-380/1] |
BSS1004G-[150-380/1] |
BSS1004L-[150-380/1] |
BSS1010-[150-450/1] |
BSS1010G-[150-450/1] |
BSS1010L-[150-450/1] |
BSSE1002-[100-315/1] |
BSSE1002G-[100-315/1] |
BSSE1002L-[100-315/1] |
BSSE1004-[150-380/1] |
BSSE1004G-[150-380/1] |
BSSE1004L-[150-380/1] |
BSX1002-[100-310/1] |
Part Number |
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Ball Screw Part Number | Recommended Support Unit | |||||||
Type | Screw Shaft O.D. | Lead | Part Number | Shape | Fixed Side | Support Side | Page | |
Type | No. | |||||||
BSX | 10 | 02 | BRW | 8 | Round | ○ | >> Click here | |
BUR | 6 | ○ | >> Click here | |||||
BSW | 8 | Square | ○ | >> Click here | ||||
BUN | 8 | ○ | >> Click here | |||||
BSS BSSE | 02 | BRW | 8S | Round | ○ | >> Click here | ||
BUR | 6 | ○ | >> Click here | |||||
BSW | 8S | Square | ○ | >> Click here | ||||
BUN | 8 | ○ | >> Click here | |||||
BSS BSSE | 04 | BRW | 10S | Round | ○ | >> Click here | ||
BUR | 10 | ○ | >> Click here | |||||
BSW | 10S | Square | ○ | >> Click here | ||||
BUN | 10 | ○ | >> Click here | |||||
BSS | 10 | BRW | 10 | Round | ○ | >> Click here | ||
BUR | 10 | ○ | >> Click here | |||||
BSW | 10 | Square | ○ | >> Click here | ||||
BUN | 10 | ○ | >> Click here |
Ball Screw Part Number | Recommended Nut Bracket | ||||
Type | Screw Shaft O.D. | Lead | Part Number | Page | |
Type | No. | ||||
BSX | 10 | 02 | BNFB BNFM BNFR BNFA | 1002X | - |
BSS BSSE | 1002S | >> Click here | |||
04 | 1004S | >> Click here | |||
10 | 1010S | >> Click here |
Grease Performance
Type | Product Name | Main Characteristic |
---|---|---|
Type L | ET-100K (Made by Kyodo Yushi) | Excels in heat resistance, oxidation stability, and adhesion. In addition, splash or leakage is reduced. |
Type G | LG2 (Made by NSK Ltd.) | Special grease for linear guides, ball screws and etc. for clean-room use. |
Located at P on Fixed Side Shaft End
Shaft Diameter | b | t | ||
---|---|---|---|---|
Ref. Dim. | Tol. (N9) | Ref. Dim. | Tol. | |
6-7 | 2 | -0.004 -0.029 | 1.2 | +0.1 0 |
8-10 | 3 | 1.8 | ||
11-12 | 4 | 0 -0.03 | 2.5 | |
13-17 | 5 | 3.0 | ||
18-20 | 6 | 3.5 |
Combination of the following parts are available.
Support Units (Square, Low Profile) | Support Units (Round) | Nut Brackets (Block Type) | Assembly Example |
---|---|---|---|
Combination with Support Units
Ball Screw Part Number | Recommended Support Unit | |||||||
---|---|---|---|---|---|---|---|---|
Type | Screw Shaft Outer Diameter | Lead | Part Number | Shape | Fixed Side | Support Side | Link | |
Type | No. | |||||||
BSX | 10 | 02 | BRW | 8 | Round | ⚬ | - | Detail here |
BUR | 6 | - | ⚬ | Detail here | ||||
BSW | 8 | Square | ⚬ | - | Detail here | |||
BUN | 8 | - | ⚬ | Detail here | ||||
BSS BSSE | 02 | BRW | 8S | Round | ⚬ | - | Detail here | |
BUR | 6 | - | ⚬ | Detail here | ||||
BSW | 8S | Square | ⚬ | - | Detail here | |||
BUN | 8 | - | ⚬ | Detail here | ||||
BSS BSSE | 04 | BRW | 10S | Round | ⚬ | - | Detail here | |
BUR | 10 | - | ⚬ | Detail here | ||||
BSW | 10S | Square | ⚬ | - | Detail here | |||
BUN | 10 | - | ⚬ | Detail here | ||||
BSS | 10 | BRW | 10 | Round | ⚬ | - | Detail here | |
BUR | 10 | - | ⚬ | Detail here | ||||
BSW | 10 | Square | ⚬ | - | Detail here | |||
BUN | 10 | - | ⚬ | Detail here |
*Aside from the part numbers shown above, there are a variety of other Support Units available.
Combination with Nut Bracket
Ball Screw Part Number | Recommended Nut Brackets | ||||
---|---|---|---|---|---|
Type | Screw Shaft Outer Diameter | Lead | Part Number | Link | |
Type | No. | ||||
BSX | 10 | 02 | BNFB BNFM BNFR BNFA | 1002X | Detail here |
BSS BSSE | 1002S | Detail here | |||
04 | 1004S | Detail here | |||
10 | 1010S | Detail here |
*Aside from the part numbers shown above, there are a variety of other Nut Brackets available.
Installation Methods | Speed | Accuracy | Suggested Support Unit |
---|---|---|---|
Intermediate – High Speed Applications * Most commonly selected installation method | Intermediate Speed Applications | Low Speed Applications * For short shaft length | |
Medium – High | High | Medium | |
Standard Type BRW and BUR were selected. | Standard Type BRW was selected. | BRWE Type was selected. |
For more details, click here.
Standard values for variations within 300mm of effective thread length (V300) and in one revolution (V2π) for Positioning Screws (JIS B 1192-1997, C accuracy grade series).
Precision Grade | C3 | C5 | ||
---|---|---|---|---|
Item | V300 | V2π | V300 | V2π |
Standard value | 8 | 6 | 18 | 8 |
Unit:μm
Standard values for variations within 300 mm of effective thread length (V300) for Transfer Screws (JIS B 1192-1997, Ct accuracy grade series).
Precision Grade | Ct7 | Ct10 |
---|---|---|
V300 | 50 | 210 |
Unit:μm
[!]Actual Mean Travel Error (ep) for Transfer Screws (JIS B 1192-1997, Ct accuracy grade series) is obtained:
Term | Symbol | Meaning |
---|---|---|
Actual Mean Travel Error | ep | Difference between Actual Mean Travel and Specified Travel. |
Variation | V300 | Variation for a 300 mm span arbitrarily taken from the effective thread length. |
V2π | Variation for an arbitrary 1 revolution (2πrad). | |
Length | Lu | Screw Effective Length. |
For more details, click here.
(1) Removing the ball nut from the screw shaft causes the ball to fall out rendering the ball screw unusable. Do not disassemble Ball Screws.
It may attract dusts and degrade assembly accuracy.
Use dedicated temporary shafts when removing Ball Nuts.
(2)Do not let a ball screw nut overrun. It may cause the balls to fall out or damage the ball recirculation parts.
(3) Do not tilt the ball screw assembly since a ball screw nut may spin off from a screw shaft due to its own weight.
Especially when using a ball screw vertically, place a fall-off prevention mechanism since a ball screw nut may spin off due to its own weight
(1) Do not remove the Nut
(2) Do not let a nut overrun
(3) Caution for free fall
Cost Efficient | Standard | Type | Precision | Flange Shape | Square Flange |
---|---|---|---|---|---|
Screw Shaft O.D.(φ) | 10 | Nut Type | Standard Nuts | Operating Condition | Standard |
Twisting Direction | Right | Nut Structure | Single | Recirculating Method | Tube Type |
Nut Size | Standard |
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