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Ball Screws - Screw diameter 25mm, pitch 5, 10 or 25 millimeters.

Spec Change

Check FAQ of this product (9 items)

MISUMI

Rolled Ball Screws suitable for transfer application

inCAD Components

(i)Caution

There has been a modification to the product since mid Februray 2019.
Modification to the Method of Locking Lip Sealing for Rolled Ball Screws

Part Number

Configured Part Number is shown.

Drawing/Specifications
3D Preview
Part Numbers
More Information
Catalog
Technical Information

Rolled Ball Screws Thread Diameter 25 -Lead 5,10 or25 - Precision Grade C7 or C10:Related Image

・Materials

Nut Type	Type		Accuracy Grade	Shaft Dia.	Lead	Screw Shaft			Nut
	Standard	F, P Configurable				[ M ]Material	[ H ]Hardness	[ S ]Surface Treatment	[ M ]Material	[ H ]Hardness	[ S ]Surface Treatment
Standard Nut	BSST	-	C7	25	5, 10	1055 Carbon Steel	Induction Hardened 56~62HRC	-	JIS SCM420	Carburized 58~62HRC	[ ! ]Phosphate Conversion Coating
	BSSR	BSSRK	C10		5, 10, 25			Phosphate Conversion Coating			Low Temp. Black Chrome
	BSSZ	BSSZK						-

* Included Collar
[ M ] Material: 1045 Carbon Steel
[ S ] Surface Treatment: Black Oxide

Specifications

Part Number	-	L	-	F	-	P
BSSC2505 BSSZK2510 BSSR2525L BSSR2505G	- - - -	300 370 370 370	-	F30	-	P12
			(L Type Greased)
			(G Type Greased)

Nut Type

Accuracy Grade

Part Number

1mm Increment

Ball Dia.

Ball Center Dia.

Screw Root Dia.

Number of CircuitsCircuits

Basic Load Rating

Axial Play

Twisting Direction

Type

Screw Shaft O.D.

Lead

C (Dynamic) kN

Co (Static) kN

Standard Nut

BSST

200~2000

L-118

3.175

25.8

(21.8)

2.5 turns, 1 row

6.6

18.7

0.03 or Less

Right

C10

BSSR

0.10 or Less

BSSZ

BSSRK

27~45

10~15

L-(91+F)

BSSZK

BSST

300~2000

L-118

6.35

26.8

(20.3)

2.5 turns, 2 rows

27.5

76.3

0.07 or Less

C10

BSSR

0.20 or Less

BSSZ

BSSRK

27~45

10~15

L-(91+F)

BSSZK

BSSR

300~2000

L-118

3.969

25.8

(21.5)

2.5 turns, 1 row

9.3

22.7

0.12 or Less

BSSZ

BSSRK

27~45

10~15

L-(91+F)

BSSZK

* F and P are configurable for BSSRK and BSSZK only. [ ! ]F≤Px3 kgf=Nx0.101972

Price list

Nut Type	Accuracy Grade	Part Number	Unit Price 1~4 pc(s).
Nut Type	Accuracy Grade	Part Number	L200~400	L401~600	L601~800	L801~1000	L1001~1200	L1201~1500	L1501~2000
Standard Nut	C7	BSST2505	31,380	32,830	34,350	35,720	36,520	37,390	38,760
	C10	BSSR2505	25,630	26,790	28,020	29,120	29,800	30,550	31,570
	C10	BSSZ2505	21,650	22,670	23,680	24,620	25,200	25,840	26,710
	C7	BSST2510	34,230	35,600	37,120	39,360	40,810	41,390	43,340
	C10	BSSR2510	27,800	28,880	30,180	31,950	33,110	33,650	35,210
		BSSZ2510	23,610	24,540	25,630	27,130	28,070	28,570	29,880
		BSSR2525	30,880	31,900	33,000	37,220	39,060	39,610	40,150
		BSSZ2525	26,200	27,080	28,020	31,560	33,160	33,600	34,100

Alterations

keyway on Fixed Side Shaft End Detailed Keyway Dimensions >> Click here
[ ! ] For installation method, see >> Click here

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.

CAD Download

: 30; 45; 60

Part Number
BSSR2505-[200-2000/1]
BSSR2505G-[200-2000/1]
BSSR2505L-[200-2000/1]
BSSR2510-[300-2000/1]
BSSR2510G-[300-2000/1]
BSSR2510L-[300-2000/1]
BSSR2525-[300-2000/1]
BSSR2525G-[300-2000/1]
BSSR2525L-[300-2000/1]

Minimum order quantity	Days to Ship	RoHS	Accuracy Grade	Lead (mm)	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	Shaft End Length F (mm)	Shaft Dia. P (φ)	Screw Shaft Surface Treatment	Shaft End Dimension (Fixed, Configurable)
1 Piece(s)	10 Days or more	10	C10	5	[0.10 or Less] 0.10 or Less	1×2.5	200 ～ 2000	6600	18700	Standard	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	5	[0.10 or Less] 0.10 or Less	1×2.5	200 ～ 2000	6600	18700	Type G	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	5	[0.10 or Less] 0.10 or Less	1×2.5	200 ～ 2000	6600	18700	Type L	27	15	Phosphate Coating	Fixed
1 Piece(s)	10 Days or more	10	C10	10	[0.2 or Less] 0.20 or Less	2×2.5	300 ～ 2000	27500	76300	Standard	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	10	[0.2 or Less] 0.20 or Less	2×2.5	300 ～ 2000	27500	76300	Type G	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	10	[0.2 or Less] 0.20 or Less	2×2.5	300 ～ 2000	27500	76300	Type L	27	15	Phosphate Coating	Fixed
1 Piece(s)	8 Days or more	10	C10	25	[0.2 or Less] 0.12 or Less	1×2.5	300 ～ 2000	9300	22700	Standard	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	25	[0.2 or Less] 0.12 or Less	1×2.5	300 ～ 2000	9300	22700	Type G	27	15	Phosphate Coating	Fixed
1 Piece(s)	12 Days or more	10	C10	25	[0.2 or Less] 0.12 or Less	1×2.5	300 ～ 2000	9300	22700	Type L	27	15	Phosphate Coating	Fixed

More Information

■Combination with Support Units

Ball Screw Part Number			Recommended Support Unit
Type	Screw Shaft O.D.	Lead	Part Number		Shape	Fixed Side	Support Side	Page
			Type	No.
BSST BSSR BSSZ	25	05 10 25	BRW	20	Round	○		>> Click here
			BUR	20			○	>> Click here
			BSW	20	Square	○		>> Click here
			BUN	20			○	>> Click here

[ ! ]Other than the part numbers shown above, a variety of Support Units are also available. (>> Click here~>> Click here)
[ ! ]Combination of BSST2510, BSSR2510 and BSSZ2510 Ball Screws with BSW20 Support Unit may cause the nut to come in contact with the bottom surfaces. Refer "Precautions on Combination of Particular Sizes" upon configuration.>> Click here
■Combination with Nut Brackets

Ball Screw Part Number			Recommended Nut Bracket
Type	Screw Shaft O.D.	Lead	Part Number		Page
			Type	No.
BSST BSSR BSSZ	25	05	BNFB BNFM BNFR BNFA	2505R	>> Click here
		10		2510R	>> Click here
		25		2525R	>> Click here

[ ! ]Other than the part numbers shown above, a variety of Nut Brackets are also available. (>> Click here)

■Notes
[ ! ]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).
[ ! ]Various grease options are available. For lead time, prices and specifications >> Click here
[ ! ]For accuracy of Ball Screws, see >> Click here, >> Click here
[ ! ]For details of Support Units, see >> Click here~>> Click here
[ ! ]Cautions: Do not let the nuts overrun its stroke or remove the nuts from the screw shafts. 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.
[ ! ]Do not tilt the ball screw assembly since the nut may rotate off from the shaft due to its own weight.

Technical Information

Applications for different types of grease

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.

Keyway Dimension Details

Located at P on Fixed Side Shaft End

Shaft Diameter	b		t
Shaft Diameter	Ref. Dim.	Tol. (N9)	Ref. Dim.	Tol.
6-7	2	-0.004 -0.029	1.2	+0.1 0
8-10	3	-0.004 -0.029	1.8
11-12	4	0 -0.03	2.5
13-17	5		3.0
18-20	6		3.5

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 Number			Recommended Support Unit
Type	Screw Shaft Outer Diameter	Lead	Part Number		Shape	Fixed Side	Support Side	Link
Type	Screw Shaft Outer Diameter	Lead	Type	No.	Shape	Fixed Side	Support Side	Link
BSST BSSR BSSZ	25	05 10 20	BRW	20	Round	⚬	-	Detail here
			BUR	20	Round	-	⚬	Detail here
			BSW	20	Square	⚬	-	Detail here
			BUN	20	Square	-	⚬	Detail here

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

*Combination of BSST2510, BSSR2510 and BSSZ2510 Ball Screws with BSW20 Support Unit may cause the nut to come in contact with the bottom surfaces.

Combination with Nut Bracket

Ball Screw Part Number			Recommended Nut Brackets
Type	Screw Shaft Outer Diameter	Lead	Part Number		Link
Type	Screw Shaft Outer Diameter	Lead	Type	No.	Link
BSST BSSR BSSZ	25	05	BNFB BNFM BNFR BNFA	2505R	Detail here
		10		2510R	Detail here
		20		2525R	Detail here

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

Support Information

Mounting Method Type

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.

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 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.
Variation	V2π	Variation for an arbitrary 1 revolution (2πrad).
Length	Lu	Screw 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

Compatible Models

Category	Linear Shafts	Ball Screw Support Units	Linear Ball Bushings	Standard Linear Guides	Flexible Shaft Couplings
Image

Product TOP

Basic Information

Cost Efficient	Standard	Type	Rolled	Flange Shape	Compact Flange
Screw Shaft O.D.(φ)	25	Preload	No Preload	Nut Type	Standard Nuts
Operating Condition	Standard	Twisting Direction	Right	Nut Structure	Single
Recirculating Method	Tube Type	Nut Size	Standard

Configure

9 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Lead(mm)
5

10

25
Clear
Axial Play
- 0.030 or Less
- 0.2 or Less
  - 0.12 or Less
  - 0.20 or Less
- 0.10 or Less
  - 0.07 or Less
  - 0.10 or Less
Clear
Number of Circuits(Rows X Turns)
- 1×2.5
- 2×2.5
Clear
Screw Total Length L(mm)
[200-2000/1mm Unit(s)]
Clear
Grease Type
- Standard
- Type G
- Type L
Clear
Shaft End Length F(mm)
27
Clear
Shaft Dia. P(φ)
15
Clear
type
- BSSR2505
- BSSR2505G
- BSSR2505L
- BSSR2510
- BSSR2510G
- BSSR2510L
- BSSR2525
- BSSR2525G
- BSSR2525L
- BSSRK2505
- BSSRK2505G
- BSSRK2505L
- BSSRK2510
- BSSRK2510G
- BSSRK2510L
- BSSRK2525
- BSSRK2525G
- BSSRK2525L
- BSST2505
- BSST2505G
- BSST2505L
- BSST2510
- BSST2510G
- BSST2510L
- BSSZ2505
- BSSZ2505G
- BSSZ2505L
- BSSZ2510
- BSSZ2510G
- BSSZ2510L
- BSSZ2525
- BSSZ2525G
- BSSZ2525L
- BSSZK2505
- BSSZK2505G
- BSSZK2505L
- BSSZK2510
- BSSZK2510G
- BSSZK2510L
- BSSZK2525
- BSSZK2525G
- BSSZK2525L
Clear
Accuracy Grade
- C7
- C10
Clear
Screw Shaft Surface Treatment
- None
- Phosphate Coating
Clear
Shaft End Dimension (Fixed, Configurable)
- Configuration
- Fixed
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

8 Days or Less

10 Days or Less

12 Days or Less
Clear

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: 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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Ball Screw Support Unit - Fixed Side, Block Type.
MISUMI Days to Ship : 8 Days or more
Ball Screw Support Unit - Fixed Side, Block Type, with Holes for Dowell Bolts.
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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.; Technical Inquiry

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About MISUMI Corporation

Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)

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Categories

Applications

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How can we improve?

Ball Screws - Screw diameter 25mm, pitch 5, 10 or 25 millimeters.

(i)Caution

Specifications

Price list

Alterations

Part Number

More Information

Technical Information

Applications for different types of grease

Keyway Dimension Details

Peripheral Components

Combination with Support Units and Nut Bracket

Support Information

Mounting Method Type

Precision Ball Screws

Cautions

Compatible Models

Basic Information

Configure

Specification/Dimensions

Lead(mm)

Axial Play

Number of Circuits(Rows X Turns)

Screw Total Length L(mm)

Grease Type

Shaft End Length F(mm)

Shaft Dia. P(φ)

type

Accuracy Grade

Screw Shaft Surface Treatment

Shaft End Dimension (Fixed, Configurable)

CAD

Days to Ship

Specify Alterations

Frequently asked questions (FAQ)

Additional Products in this Category

Complementary Products

Tech Support

About This Website

About MISUMI Corporation

Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)