SD Bi-Directional
Ball Screw

SD series Standardized Bi-directional Ball Screws

SD series are economical Ball Screws which moves bi-directionally with a shaft, and perform centering, precise positioning. There are Precision Ball Screws C3, C5 grade.

Accuracy Grade & Axial play

Accuracy grades of SD series (Standardized Bidirectional Precision Ball Screws) are 2 kinds, JIS C3 and JIS C5. Axial play are 0 (Preload : C3) and 0.005mm or less(C5) corresponding to accuracy grades in stock.

Material & Surface hardness

Shafts and Nuts of SD series(Standardized Bidirectional Precision Ball Screws) adopts SCM415 (carburizing and quenching), surface hardness of Ball Screw part is HRC58-62.

Lubrication

SD series(Standardized Bi-directional Precision Ball Screws) are applied with anti-rust oil for rust prevention when unfinished end journal. Since anti-rust oil is not lubricant, apply Grease or lubrication oil before using Ball Screws. If there is no specific instruction, ABSSAC would recommend our original Grease (MSG No.2) as standard lubricant. Please feel free to contact us.

End-journal profile

End-journal configuration of SD series (Standardized Bi-directional Precision Ball Screws) is not standardized. Please ask ABSSAC regarding additional machining with a drawing which shows end-journal profile.

Model number notation

Model number notation of SD series (Standardized Bi-directional Precision Ball Screws) is as follows.

SD Diagram 1

Bi-directional Ball Screws series No.
Screw Shaft nominal diameter(mm)
Lead(mm)
Left-side thread length(mm)
Left-hand
Right-side thread length(mm)
Right-hand
Screw Shaft total length(mm)
Accuracy grade(C3 or C5)

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD0401	Shaft dia. ∅4	Lead 1mm	C3 & C5

SD Diagram 2

Unit : mm
Ball Screw Specifications
Ball size	∅0.6
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅3.4
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD0401-50L50R140C3	35	C3	±0.008	0.008	0.035	0	~0.010	300	430
SD0401-50L50R140C5	35	C5	±0.018	0.018	0.050	~0.005	-	300	430

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD0601	Shaft dia. ∅6	Lead 1mm	C3 & C5

SD Diagram 3

Unit : mm
Ball Screw Specifications
Ball size	∅0.8
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅5.3
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD0601-80L80R210C3	65	C3	±0.008	0.008	0.050	0	~0.013	550	1000
SD0601-80L80R210C5	65	C5	±0.018	0.018	0.065	~0.005	-	550	1000

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD0801	Shaft dia. ∅8	Lead 1mm	C3 & C5

SD Diagram 4

Unit : mm		View Z-Z
Ball Screw Specifications
Ball size	∅0.8
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅7.3
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD0801-120L120R300C3	105	C3	±0.010	0.008	0.050	0	~0.018	650	1300
SD0801-120L120R300C5	105	C5	±0.020	0.018	0.065	~0.005	-	650	1300

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD0802	Shaft dia. ∅8	Lead 2mm	C3 & C5

SD Diagram 5

Unit : mm		View Z-Z
Ball Screw Specifications
Ball size	∅1.2
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅7.0
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD0802-120L120R300C3	100	C3	±0.010	0.008	0.050	0	~0.020	1300	2300
SD0802-120L120R300C5	100	C5	±0.020	0.018	0.065	~0.005	-	1300	2300

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD1002	Shaft dia. ∅10	Lead 2mm	C3 & C5

SD Diagram 8

Unit : mm		View Z-Z
Ball Screw Specifications
Ball size	∅1.2
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅9.0
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD1002-165L165R400C3	145	C3	±0.010	0.008	0.050	0	~0.025	1450	3000
SD1002-165L165R400C5	145	C5	±0.020	0.018	0.065	~0.005	-	1450	3000

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

Standard products in stock SD series
SD1202	Shaft dia. ∅12	Lead 2mm	C3 & C5

SD Diagram 9

Unit : mm		View Z-Z
Ball Screw Specifications
Ball size	∅1.2
Number of thread	1
Thread direction	Left & Right
Shaft root dia.	∅11.0
Number of circuit	1×3
Shaft/Nut Material	SCM415H
Surface hardness	HRC58∼62 (Thread area)
Anti-rust treatment	Anti-rust oil

Unit : mm
Ball Screw Model	Travel	Grade	Lead accuracy		Total Run-out ⌰	Axial play	Preload Torque Nm	Basic Load Rating N
Ball Screw Model	Travel	Grade	Travel deviation e_P	Variation V_u	Total Run-out ⌰	Axial play	Preload Torque Nm	Dynamic Ca	Static Coa
SD1202-180L180R440C3	160	C3	±0.010	0.008	0.065	0	~0.035	1600	3700
SD1202-180L180R440C5	160	C5	±0.020	0.018	0.080	~0.005	-	1600	3700

Note 1): Please designate end-journal profile with your sketch.
Note 2): Absolute position of both Nuts related to the Screw Shaft is not under the control.

T: +44 (0)1386 421005F: +44 (0)1386 422441E: sales@abssac.co.ukW: www.abssac.co.uk

SD Bi-DirectionalBall Screw

SD series Standardized Bi-directional Ball Screws

Accuracy Grade & Axial play

Material & Surface hardness

Lubrication

End-journal profile

Model number notation

SD0401

Shaft dia. ∅4

Lead 1mm

C3 & C5

SD0601

Shaft dia. ∅6

Lead 1mm

C3 & C5

SD0801

Shaft dia. ∅8

Lead 1mm

C3 & C5

SD0802

Shaft dia. ∅8

Lead 2mm

C3 & C5

SD1002

Shaft dia. ∅10

Lead 2mm

C3 & C5

SD1202

Shaft dia. ∅12

Lead 2mm

C3 & C5

SD Bi-Directional
Ball Screw