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Precision Ball Screws - Screw diameter 6mm or 8mm, pitch 2 millimeters.

Precision Ball Screws - Screw diameter 6mm or 8mm, pitch 2 millimeters.

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:

  • inCAD Components
Precision Ball Screws - Shaft Diameter 6 or 8- Lead 1 or 2:Related Image
・Materials
Nut TypeTypeAccuracy GradeShaft Dia.LeadScrew ShaftNut
[ M ]Material[ H ]Hardness[ M ]Material[ H ]Hardness
Compact NutBSXC36, 81, 2JIS SCM415Carburized
58~62HRC
JIS SCM420Carburized
58~62HRC
Standard NutBSSC582
BSSEC7

Specifications

Part Number-L
BSX0601
BSS0802

BSS0802L
BSS0802G
-
-
-
-
185
200
210
210
(L Type Greased)
(G Type Greased)
Nut TypeAccuracy GradePart Number1mm IncrementYBall Dia.Ball Center Dia.Screw Root Dia.Number of CircuitsBasic Load RatingAxial PlayPreload Torque N·cmTwisting Direction
TypeScrew Shaft O.D.LeadLC (Dynamic) kNCo (Static) kN
Compact
Nut
C3BSX060180~205L-400.800 6.24(5.3)1 turn, 3 rows0.551.150 (Preloaded)1.3 or LessRight
080180~255L-578.24(7.3)0.651.61.8 or Less
Standard
Nut
0802100~2401.58758.3(6.6)2.5 turns, 1 row1.221.30.3~2.6
C5BSS100~2101.952.60.005 or Less0.5 or Less
C7BSSE0.030 or Less-
kgf=Nx0.101972

Price list

Nut TypeAccuracy GradePart NumberUnit Price 1~4 pc(s).
L80~99L100~160L161~205L206~210L211~240L241~255
Compact NutC3BSX060161,00061,00061,000---
BSX080161,50061,50061,50061,50061,50061,500
Standard NutBSX0802-45,27048,78048,78048,780-
C5BSS0802-40,32040,32040,320--
C7BSSE0802-37,08037,08037,080--
[ ! ]For orders larger than indicated quantity, please request a quotation.

Alterations

Precision Ball Screws - Shaft Diameter 6 or 8- Lead 1 or 2:Related Image
Keyway on Fixed Side Shaft End
Detailed Keyway Dimensions >> Click here

Part Number 

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Part Number
BSS0802-[100-210/1]
BSSE0802-[100-210/1]
BSX0802-[100-240/1]
Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSFlange Shape Accuracy Grade Screw Shaft O.D.
(φ)
Lead
(mm)
Preload Axial Play Recirculating Method Number of Circuits
(Rows X Turns)
Screw Total Length L
(mm)
Basic Load Rating, Dynamic Rating
(N)
Basic Load Rating, Static Rating
(N)
Grease Type Screw Shaft Surface Treatment
1 Piece(s)

10 Days or more

10Square FlangeC582No Preload0.005 or LessTube Type1×2.5100 ~ 21019502600Standard-
1 Piece(s)

10 Days or more

10Square FlangeC782No Preload0.030 or LessTube Type1×2.5100 ~ 21019502600Standard-
1 Piece(s)

10 Days or more

10Square FlangeC382Preloaded0(Preload)Tube Type1×2.5100 ~ 24012201300Standard-

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More Information

Precision Ball Screws - Shaft Diameter 6 or 8- Lead 1 or 2:Related Image
■Combination with Support Units
Ball Screw Part NumberRecommended Support Unit
TypeScrew Shaft O.D.LeadPart NumberShapeFixed SideSupport SidePage
TypeNo.
BSX
BSS
BSSE
0601BRW6Round >> Click here
BSW6Square >> Click here
0801
02
BRW8Round >> Click here
BUR6 >> Click here
BSW8Square >> Click here
BUN8 >> Click here
[ ! ]Other than the part numbers shown above, Support Units with various configurations and surface treatments are also available. (>> Click here~ >> Click here)
■Combination with Nut Brackets
Ball Screw Part NumberRecommended Nut Bracket
TypeScrew Shaft O.D.LeadPart NumberPage
TypeNo.
BSX
BSS
B
SSE
0601---
0801BNFB
BNFM
BNFR
BNFA
801X>> Click here
02802S>> Click here
[ ! ]A variety of materials and surface treatments for Nut Brackets are available. (>> Click here)

■Notes
[ ! ]Filled with lithium soap based grease (Alvania Grease S2 made by Showa Shell Sekiyu K.K).
(BSX is filled with Multemp Grease PS2 made by Kyodo Yushi Co., Ltd.)
[ ! ]Cautions: Do not let nuts overrun its stroke or remove nuts from screw shafts. It may cause balls to fall out or damage ball recirculation parts.
[ ! ]Various grease options are available. For lead time, prices and specifications >> Click here Not applicable to BSX
[ ! ]For accuracy of Ball Screws, see >> Click here, >> Click here.
[ ! ]For details of Support Units, see >> Click here~>> Click here.

Technical Information

Applications for different types of grease

Grease Performance

TypeProduct NameMain Characteristic
Type LET-100K (Made by Kyodo Yushi)Excels in heat resistance, oxidation stability, and adhesion. In addition, splash or leakage is reduced.
Type GLG2 (Made by NSK Ltd.)Special grease for linear guides, ball screws and etc. for clean-room use.

Keyway Dimension Details

Located at P on Fixed Side Shaft End

Shaft Diameterbt
Ref.
Dim.
Tol.
(N9)
Ref.
Dim.
Tol.
6-72 -0.004
-0.029
1.2 +0.1
0
8-1031.8
11-1240
-0.03
2.5
13-1753.0
18-2063.5

Peripheral Components

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 and Nut Bracket

Combination with Support Units

Ball Screw Part NumberRecommended Support Unit
TypeScrew Shaft Outer DiameterLeadPart NumberShapeFixed SideSupport SideLink
TypeNo.
BSX
BSS
BSSE
0601BRW6Round-Detail here
BSW8Square-Detail here
0801
02
BRW8Round-Detail here
BUR6-Detail here
BSW8Square-Detail here
BUN8-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 NumberRecommended Nut Brackets
TypeScrew Shaft Outer DiameterLeadPart NumberLink
TypeNo.
BSX
BSS
BSSE
0601--
0801BNFB
BNFM
BNFR
BNFA
801XDetail here
02802SDetail 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.

Support Information

Mounting Method Type

Installation MethodsSpeedAccuracySuggested Support Unit
Intermediate – High Speed
Applications
* Most commonly selected installation method
Intermediate Speed ApplicationsLow Speed Applications
* For short shaft length
Medium – HighHighMedium
Standard Type BRW and BUR were selected.Standard Type BRW was selected.BRWE Type was selected.

For more details, click here.

Precision Ball Screws

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 GradeC3C5
ItemV300V2πV300V2π
Standard value86188

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 GradeCt7Ct10
V30050210

Unit:μm

[!]Actual Mean Travel Error (ep) for Transfer Screws (JIS B 1192-1997, Ct accuracy grade series) is obtained:

TermSymbolMeaning
Actual Mean
Travel Error
epDifference between Actual Mean Travel and Specified Travel.
VariationV300Variation for a 300 mm span arbitrarily taken from the effective thread length.
V2πVariation for an arbitrary 1 revolution (2πrad).
LengthLuScrew Effective Length.

For more details, click here.

Cautions

(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

 

Basic Information

Cost Efficient Standard Type Precision Nut Type Standard Nuts
Operating Condition Standard Twisting Direction Right Nut Structure Single
Nut Size Standard

Frequently asked questions (FAQ)

質問: What is the allowable temperature range of your ballscrews?
回答: The standard allowable temperature range is 0°C to 80°C.
質問: Can I buy the nut or shaft separately?
回答: No, we do not offer the nut or shaft separately. The ball bearings inside the nut are sized to match each shaft to ensure proper clearance ranges.
質問: What grease is used for your Ball Screws?
回答: The standard grease is Alvania Grease S2 made by Showa Shell Sekiyu K.K. It is an EP 2 lithium bearing grease.
質問: What is the recommended lubrication schedule?
回答: As a rule of thumb, 100 km of linear travel is a good starting point for determining a lubrication schedule. The final schedule should be determined by the customer based on their specific appliation details (load, speed, temperature, contamination ,etc) and application experience.
質問: Do you offer food grade grease?
回答: No, we do not offer food grade grease as a standard option for ballscrews.
質問: What does the dynamic load rating mean?
回答: The basic dynamic load rating (Ca) is used to calculate the service life of a ball screw in motion with its ball screw nut under an axial load. The basic dynamic load rating Ca means an axial load at which 90% of a group of identical ball screw units independently operating under the same conditions achieve a rated load of 10^6 revs (1 million revolutions) without causing flaking.
質問: Do you offer screws with right and left hand threads?
回答: We do not offer right and left hand threads on the same shaft as standard. For large volumes, it may be a custom option. Please contact engineering with application details.
質問: What is the difference between pitch and lead?
回答: The pitch is the distance between successive crests of the thread of a screw. The lead is the axial distance traveled by a screw in one turn.
質問: How does temperature increase affect the Ball Screw?
回答: An increase in the screw shaft temperature of 1°C expands the shaft by 12μm per meter. For this reason, although the lead of the Ball Screw is machined to a very high degree of precision, the thermal deformation caused by a temperature increase may reduce positioning accuracy.

Check other FAQ (6 items) Close

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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.