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KSS Ball Screws · Precision Rolled · C5
PSR & PSRT Series Ball Screws
Precision rolled ball screws in C5 grade for the miniature and compact range — smooth, low-friction linear motion where space is tight and accuracy still matters.
Ø4–12mm
SHAFT DIAMETER
1–12mm
LEAD
C5
PRECISION GRADE
CHOOSE YOUR CONFIGURATION
Same capacity. Two nut formats.
PSR and PSRT share the same diameters, leads and load capacities — the difference is the nut, and therefore the usable travel. Jump straight to the model range you need.
PSR Series
Standard nut format. Delivers more usable travel over the same screw length — the choice when you need to maximise stroke.
PSRT Series
Different nut profile that takes more axial space, trading travel for a more compact mounting envelope.
Series Overview
Rolled ball screws in C5 precision grade for the miniature and compact range — shaft diameters from 4 to 12 mm with leads from 1 to 12 mm, all backlash type. PSR and PSRT are matched model for model on shaft diameter, lead and load capacity; the difference is the nut format, and therefore how much of the screw length remains usable as travel. Standard and compact "K" versions are available, with end machining, lubrication and nut direction configured to order.
Specifications
PSR Series model range
Standard nut format, delivering the longer usable travel of the two. Select a model to view full specifications, configuration options and 3D CAD models.
| Ball Screw Model | Shaft Dia mm | Lead mm | Max Travel mm | CaN | C0aN | |
|---|---|---|---|---|---|---|
| PSR0401 | 4 | 1 | 75 | 560 | 790 | View PSR0401 |
| PSR0401K | 4 | 1 | 80 | 300 | 430 | View PSR0401K |
| PSR0601 | 6 | 1 | 175 | 680 | 1,200 | View PSR0601 |
| PSR0601K | 6 | 1 | 180 | 560 | 950 | View PSR0601K |
| PSR0801 | 8 | 1 | 205 | 780 | 1,650 | View PSR0801 |
| PSR0801K | 8 | 1 | 210 | 650 | 1,300 | View PSR0801K |
| PSR0802 | 8 | 2 | 200 | 2,400 | 4,100 | View PSR0802 |
| PSR0802K | 8 | 2 | 205 | 1,300 | 2,300 | View PSR0802K |
| PSR0812 | 8 | 12 | 195 | 2,200 | 4,000 | View PSR0812 |
| PSR1002K | 10 | 2 | 205 | 1,450 | 3,000 | View PSR1002K |
| PSR1202K | 12 | 2 | 255 | 1,600 | 3,700 | View PSR1202K |
Ca = dynamic load rating C0a = static load rating Ranges span the configurable lengths per model
PSRT Series model range
Same size matrix and load capacities as PSR, with the compact nut format. Travel is shorter for the same screw length because the nut takes more axial space.
| Ball Screw Model | Shaft Dia mm | Lead mm | Max Travel mm | CaN | C0aN | |
|---|---|---|---|---|---|---|
| PSRT0401 | 4 | 1 | – | 560 | 790 | View PSRT0401 |
| PSRT0401K | 4 | 1 | – | 300 | 430 | View PSRT0401K |
| PSRT0601 | 6 | 1 | – | 680 | 1,200 | View PSRT0601 |
| PSRT0601K | 6 | 1 | – | 560 | 950 | View PSRT0601K |
| PSRT0801 | 8 | 1 | 145 | 780 | 1,650 | View PSRT0801 |
| PSRT0801K | 8 | 1 | – | 650 | 1,300 | View PSRT0801K |
| PSRT0802 | 8 | 2 | – | 2,400 | 4,100 | View PSRT0802 |
| PSRT0802K | 8 | 2 | – | 1,300 | 2,300 | View PSRT0802K |
| PSRT0812 | 8 | 12 | – | 2,200 | 4,000 | View PSRT0812 |
| PSRT1002K | 10 | 2 | – | 1,450 | 3,000 | View PSRT1002K |
| PSRT1202K | 12 | 2 | – | 1,600 | 3,700 | View PSRT1202K |
Ca = dynamic load rating C0a = static load rating Ranges span the configurable lengths per model