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Precision Ball Screws - Screw diameter 12mm, pitch 2, 4, 5 or 10 millimeters.

Precision Ball Screws - Screw diameter 12mm, pitch 2, 4, 5 or 10 millimeters.

Smallest Nut Outer Diameter
For complete product overview and details on Precision Ball Screws - Thread Diameter 12, Lead 2, 4, 5 or 10, Precision Grade C3, C5 or C7 see the sections below:

  • inCAD Components

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Precision Ball Screws - Thread Diameters 12- Lead 2,4,5 or 10 - Precision Grade C3,C5 or C7:Related Image
・Materials
Nut TypeTypeAccuracy GradeShaft Dia.LeadScrew ShaftNut
[ M ]Material[ H ]Hardness[ M ]Material[ H ]Hardness
Standard NutBSXC3122, 5*4150 Alloy Steel* Induction Hardened
58~62HRC
JIS SCM420Carburized
58~62HRC
BSSC52, 4, 5, 10
BSSEC72, 5, 10
* For 1202, screw shaft material JIS SCM415 is carburized.
 

Specifications

Part Number-L
BSX1202
Precision Ball Screws - Thread Diameters 12- Lead 2,4,5 or 10 - Precision Grade C3,C5 or C7:Related ImageBSSE1210L
Precision Ball Screws - Thread Diameters 12- Lead 2,4,5 or 10 - Precision Grade C3,C5 or C7:Related ImageBSSE1210G
-
-
-
300
420
420


(L Type Greased)
(G Type Greased)
Nut TypeAccuracy GradePart Number1mm IncrementYABTZWHRCdd1hBall 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
Standard
Nut
C3BSX1202150~390L-68-1.587512.3(10.6)2.5 turns
1 row
1.542.050 (Preloaded)0.4~3.2Right
C5BSS150~445L-572.454.10.005 or Less1.0 or Less
C7BSSE0.030 or Less-
C5BSS04150~400L-702.381212.6(10.1)3.66.750.005 or Less1.0 or Less
C3BSX05150~440L-7044341012144550404.584.43.17512.8(9.5)3.744.90 (Preloaded)1.5~5.0Right
C5BSS150~45010125.959.80.005 or Less1.0 or Less
C7BSSE0.030 or Less-Right
C5BSS10200~600L-704937124854415.59.55.41.5 turns
1 row
3.855.90.005 or Less2.0 or Less
C7BSSE0.030 or Less-
kgf=Nx0.101972

Price list

Accuracy GradePart NumberUnit Price 1 ~ 4 pc(s).
L150
~
199
L200L201
~
250
L251
~
290
L291
~
295
L296
~
300
L301
~
390
L391
~
400
L401
~
440
L441
~
445
L446
~
450
L451
~
600
C3BSX120245,27045,27045,27045,27049,77049,77049,770-
C5BSS120242,16042,16042,16042,16042,16048,70048,70048,70048,70048,700-
C7BSSE120238,39038,39038,39038,39038,39045,05045,05045,05045,05045,050-
C5BSS120443,34043,34043,34045,62045,62045,62045,62045,620-
C3BSX120549,41049,41049,41049,41052,47052,47052,47052,47052,470-
C5BSS120538,07038,07039,42039,42039,42039,42039,42039,42043,02043,02043,020-
C7BSSE120534,83034,83036,18036,18036,18036,18036,18036,18039,78039,78039,780-
C5BSS1210-41,13041,13041,13041,13041,13041,13041,13043,74043,74043,74050,130
C7BSSE1210-37,89037,89037,89037,89037,89037,89037,89040,50040,50040,50046,890
[ ! ]For orders larger than indicated quantity, please request a quotation.

Alterations

Precision Ball Screws - Thread Diameters 12- Lead 2,4,5 or 10 - Precision Grade C3,C5 or C7:Related Image
Keyway on Fixed Side Shaft End
Detailed Keyway Dimensions >> Click here

Part Number 

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Part Number
BSX1202-[150-390/1]
Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSAccuracy Grade Lead
(mm)
Preload Axial Play 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
1 Piece(s)

10 Days or more

10C32Preloaded0(Preload)1×2.5150 ~ 39015402050Standard

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  1. 1

More Information

Precision Ball Screws - Thread Diameters 12- Lead 2,4,5 or 10 - Precision Grade C3,C5 or C7:Related Image
■Combination with Support Units
Ball Screw Part NumberRecommended Support Unit
TypeScrew Shaft O.D.LeadPart NumberShapeFixed SideSupport SidePage
TypeNo.
BSX1202BRW10Round >> Click here
BUR10 >> Click here
BSW10Square >> Click here
BUN10 >> Click here
05BRW10Round >> Click here
BUR10 >> Click here
BSW10Square >> Click here
BUN10 >> Click here
BSS
BSSE
02BRW8Round >> Click here
BUR6 >> Click here
BSW8Square >> Click here
BUN8 >> Click here
04
05
10
BRW10SRound >> Click here
BUR10 >> Click here
BSW10SSquare >> Click here
BUN10 >> 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
BSSE
1202BNFB
BNFM
BNFR
BNFA
1202S>> Click here
041204S>> Click here
051205S>> Click here
101210S>> Click here
[ ! ]A variety of materials and surface treatments for Nut Brackets is available. (>> Click here)

■Notes
[ ! ]Filled with lithium soap based grease (Alvania Grease S2 made by Showa Shell Sekiyu K.K).
[ ! ]Caution: 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 [ NG ]BSX is not applicable.
[ ! ]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.
BSX1202BRW10Round-Detail here
BUR10-Detail here
BSW10Square-Detail here
BUN10-Detail here
05BRW10Round-Detail here
BUR10-Detail here
BSW10Square-Detail here
BUN10-Detail here
BSS
BSSE
02BRW8Round-Detail here
BUR6-Detail here
BSW8Square-Detail here
BUN8-Detail here
04
05
10
BRW10SRound-Detail here
BUR10-Detail here
BSW10SSquare-Detail here
BUN10-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
1202BNFB
BNFM
BNFR
BNFA
1202SDetail here
041204SDetail here
051205SDetail here
101210SDetail here

*Aside from the part numbers shown above, there are a variety of other Nut Brackets available.

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 Flange Shape Square Flange
Screw Shaft O.D.(φ) 12 Nut Type Standard Nuts Operating Condition Standard
Twisting Direction Right Nut Structure Single Recirculating Method Tube Type
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 ball screws.
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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