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LINEAR PRODUCTS

Abssac PSRT Ball Screw

ABSSAC Lead Screws, Ball Screws, and Shaft Couplings
Call: 01386 421 005
Email: sales@abssac.co.uk
Web: www.abssac.co.uk
ABSSAC

RoHS

Precision Rolled Ball Screws (PSRT Series)

High accuracy (JIS C5) has been achieved by Rolled Ball Screw.
We provide Rolled Ball Screws with high precision & better cost
performance, which can be replaced with conventional
Ground Ball Screw with C5 grade.

Features

  • The conventional type of Rolled Ball Screws can reach the accuracy grade of Ct10 or Ct7.
    ABSSAC newly developed the high grade accuracy of Rolled Ball Screw, which can achieve JIS C5 grade.
  • Fixed side end-journal can be set larger than nominal diameter of Screw Shaft, so there is no need to use Collar by press fit.
  • End-journal profile and dimension are standardized, so ABSSAC Compact Support-Unit can be installed.
  • Since supported-side end-journal is unfinished, it is possible to do additional end machining with your requested thread length.
  • The Axial play is set at 5um or less, but Zero backlash is possible by your request.
  • Special end-journal profile can be available as customized order.
T: +44 (0)1386 421005 F: +44 (0)1386 422441 E: sales@abssac.co.uk W: www.abssac.co.uk
ABSSAC
Standard products in stock PSRT series

PSRT0801

Shaft dia. ∅8

Lead 1mm

C5

PSRT Diagram 1

Unit : mm
Ball Screw Specifications Supported-side end-journal profile
Ball size ∅0.8 A-type B-type C-type
Number of thread 1 PSRT Diagram 2
L5:Thread length after end-journal machining.
L6:Total length after end-journal machining.
Thread direction Right
Shaft root dia. ∅7.3
Number of circuit 3.7×1
Material Shaft S55C+SUS303
Nut SCM415H
Surface hardness HRC58∼
(Thread area)
Lubrication Original Grease
MSG No.2
Support-unit Recommendation Supported-side: MSU-6CS/6GS, EF6
Fixed-side: MSU-6C/6G, EK6
Unit : mm
Ball Screw Model Travel Shaft length Travel deviation
ep
Total
Run-out
Axial play Basic Load Rating
N
L1 L2 L3 L4 Dynamic
Ca
Static
Coa
PSRT0801-119R160C5 90 119 123 130 160 ±0.020 0.050 ∼0.005 780 1650
PSRT0801-169R210C5 140 169 173 180 210 ±0.020 0.065
PSRT0801-269R310C5 240 269 273 280 310 ±0.023 0.065
T: +44 (0)1386 421005 F: +44 (0)1386 422441 E: sales@abssac.co.uk W: www.abssac.co.uk
ABSSAC
Standard products in stock PSRT series

PSRT0802

Shaft dia. ∅8

Lead 2mm

C5

PSRT Diagram 3

Unit : mm
Ball Screw Specifications Supported-side end-journal profile
Ball size ∅1.5875 A-type B-type C-type
Number of thread 1 PSRT Diagram 2
L5:Thread length after end-journal machining.
L6:Total length after end-journal machining.
Thread direction Right
Shaft root dia. ∅6.6
Number of circuit 3.7×1
Material Shaft S55C+SUS303
Nut SCM415H
Surface hardness HRC58∼
(Thread area)
Lubrication Original Grease
MSG No.2
Support-unit Recommendation Supported-side: MSU-6CS/6GS, EF6
Fixed-side: MSU-6C/6G, EK6
Unit : mm
Ball Screw Model Travel Shaft length Travel deviation
ep
Total
Run-out
Axial play Basic Load Rating
N
L1 L2 L3 L4 Dynamic
Ca
Static
Coa
PSRT0802-119R160C5 80 119 123 130 160 ±0.020 0.050 ∼0.005 2400 4100
PSRT0802-169R210C5 130 169 173 180 210 ±0.020 0.065
PSRT0802-269R310C5 230 269 273 280 310 ±0.023 0.065
T: +44 (0)1386 421005 F: +44 (0)1386 422441 E: sales@abssac.co.uk W: www.abssac.co.uk
ABSSAC

Model number notation

Please designate length, end-journal profile, lubricant and Nut direction (in red ink below) according to the Model number notation below.

PSRT Diagram 4

  • Ball Screws Series No.
  • Screw Shaft nominal diameter(mm)
  • Lead(mm)
  • Screw thread length(mm)
    (Specify in 1mm unit after end-journal machining)
  • Thread direction(R=Right-hand)
  • Screw Shaft total length(mm)
    (Specify in 1mm unit)
  • Accuracy grade(Class JIS C5)
  • Shaft supported end profile
    (Refer to Fig. 1 below : A-type,B-type,C-type)
  • Anti-rust oil or Lubricant
    0 : Grease (MSG No.2)
    1 : Anti-rust oi(l Non Ruster PZ2)
    2 : Multemp PS2 grease
    3 : Other
  • Nut Flange direction (Refer to Fig. 2 below)

Fig. 1 : Shaft supported end profile

PSRT Diagram 5

Fig. 2 : Nut Flange direction

PSRT Diagram 6

Note 1) ABSSAC will not be responsible for quality of goods which were reworked by other than ABSSAC.
Note 2) ABSSAC does not make additional Nut machining.
Note 3) MSG No.2 Grease will be applied in case of no designation of lubricant.

Customized Design
It will be the customized if you need special specifications like below, please ask ABSSAC representative.

  1. Non-standard profile or dimension on Shaft end-journal.
  2. Non-standard profile or dimension on Ball Nut or Flange.
  3. Zero backlash (Pre-loaded) type Ball Screw.
  4. Longer length of Ball Screw Shaft than standard product.
T: +44 (0)1386 421005 F: +44 (0)1386 422441 E: sales@abssac.co.uk W: www.abssac.co.uk