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Smallest Nut Outer Diameter
For complete product overview and details on Precision Ball Screws - Shaft Diameter 6 or 8, Lead 1 or 2 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 | |||||
Compact Nut | BSX | C3 | 6, 8 | 1, 2 | JIS SCM415 | Carburized 58~62HRC | JIS SCM420 | Carburized 58~62HRC |
Standard Nut | BSS | C5 | 8 | 2 | ||||
BSSE | C7 |
Part Number | - | L |
BSX0601 BSS0802 BSS0802L BSS0802G | - - - - | 185 200 210 210 |
Nut Type | Accuracy Grade | Part Number | 1mm Increment | Y | 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 | ||||||||||
Compact Nut | C3 | BSX | 06 | 01 | 80~205 | L-40 | 0.800 | 6.24 | (5.3) | 1 turn, 3 rows | 0.55 | 1.15 | 0 (Preloaded) | 1.3 or Less | Right |
08 | 01 | 80~255 | L-57 | 8.24 | (7.3) | 0.65 | 1.6 | 1.8 or Less | |||||||
Standard Nut | 08 | 02 | 100~240 | 1.5875 | 8.3 | (6.6) | 2.5 turns, 1 row | 1.22 | 1.3 | 0.3~2.6 | |||||
C5 | BSS | 100~210 | 1.95 | 2.6 | 0.005 or Less | 0.5 or Less | |||||||||
C7 | BSSE | 0.030 or Less | - |
Nut Type | Accuracy Grade | Part Number | Unit Price 1~4 pc(s). | |||||
L80~99 | L100~160 | L161~205 | L206~210 | L211~240 | L241~255 | |||
Compact Nut | C3 | BSX0601 | 61,000 | 61,000 | 61,000 | - | - | - |
BSX0801 | 61,500 | 61,500 | 61,500 | 61,500 | 61,500 | 61,500 | ||
Standard Nut | BSX0802 | - | 45,270 | 48,780 | 48,780 | 48,780 | - | |
C5 | BSS0802 | - | 40,320 | 40,320 | 40,320 | - | - | |
C7 | BSSE0802 | - | 37,080 | 37,080 | 37,080 | - | - |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
Part Number |
---|
BSS0802G-[100-210/1] |
BSS0802L-[100-210/1] |
BSSE0802G-[100-210/1] |
BSSE0802L-[100-210/1] |
BSX0601-[80-205/1] |
BSX0801-[80-255/1] |
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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 BSS BSSE | 06 | 01 | BRW | 6 | Round | ○ | >> Click here | |
BSW | 6 | Square | ○ | >> Click here | ||||
08 | 01 02 | BRW | 8 | Round | ○ | >> Click here | ||
BUR | 6 | ○ | >> Click here | |||||
BSW | 8 | Square | ○ | >> Click here | ||||
BUN | 8 | ○ | >> Click here |
Ball Screw Part Number | Recommended Nut Bracket | ||||
Type | Screw Shaft O.D. | Lead | Part Number | Page | |
Type | No. | ||||
BSX BSS BSSE | 06 | 01 | - | - | - |
08 | 01 | BNFB BNFM BNFR BNFA | 801X | >> Click here | |
02 | 802S | >> 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 BSS BSSE | 06 | 01 | BRW | 6 | Round | ⚬ | - | Detail here |
BSW | 8 | Square | ⚬ | - | Detail here | |||
08 | 01 02 | BRW | 8 | Round | ⚬ | - | Detail here | |
BUR | 6 | - | ⚬ | Detail here | ||||
BSW | 8 | Square | ⚬ | - | Detail here | |||
BUN | 8 | - | ⚬ | 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 BSS BSSE | 06 | 01 | - | - | |
08 | 01 | BNFB BNFM BNFR BNFA | 801X | Detail here | |
02 | 802S | Detail here |
*Aside from the part numbers shown above, there are a variety of other Nut Brackets available.
Note
Mounting surface of BSST ball nut flange is not surface-treated
Filled with lithium soap based grease (Alvania Grease S2 made by Showa Shell Sekiyu K.K).(BSX is fi lled with Multemp Grease PS2 made by Kyodo Yushi Co., Ltd.)
Caution: Do not remove any nuts from their screw shafts or allow nuts to overrun the stroke. It may cause the balls to fall out or damage the ball recirculation parts.
Included Collar is packaged together with main body of Ball Screws. Store this Included Collar with care since it is required when mating with Support Units.3
Do not tilt the Ball Screw Assembly. Due to its own weight, the nut may rotate off of the shaft.
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 | Nut Type | Standard Nuts |
---|---|---|---|---|---|
Operating Condition | Standard | Twisting Direction | Right | Nut Structure | Single |
Nut Size | Standard |
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