Ball Screw Assembly - External Threaded Nut BSR0601ATXR-0250-TRS-NNN-NNN-N 6mmx1mmx250mm
- Max Static Load: 970 N
- Max Dynamic Load: 740 N
- Accuracy Grade: Grade 10
- Backlash: Standard, 0.05 mm max
- Screw Length: 250 mm
Miniature ball screw, 6mm diameter, 1mm lead, 250mm length, with a TRS cylindrical nut featuring right-facing external mounting threads. Unlike the smooth CNS nut with polymer wipers, the TRS nut mounts directly into a mating threaded component and has no wipers. The 1mm lead supports fine positioning and controlled linear travel, while the Grade 10 precision-rolled screw provides accurate motion across its length. The standard-fit nut has up to 0.05mm backlash; you can use the custom configurator to select a transitional-fit nut with no more than 0.008mm backlash for reduced play and more responsive direction changes.
- 6mm diameter and 1mm lead for precise and controlled motion.
- For applications requiring a compact footprint without sacrificing travel distance.
- Multi-liner ball return system and polymer wipers ensure smooth operation.
- Easy integration with specially designed housings
- Keyway to prevent nut rotation.
- Standard fit nut (0.05 mm max backlash)
- For a transitional fit nut (0.008 mm to ≤3% preload), visit the configurator
| Ød1 | Ød2 | Ph | Dw | ØD | B |
|---|---|---|---|---|---|
| 5.95 mm | 5.37 mm | 1 mm | 0.8 mm | 12.5 mm | 12 mm |
| L | L1 | L2 | External Thread | Screw Length | Approx. Weight |
|---|---|---|---|---|---|
| 18 mm | 4.5 mm | 9.9 mm | M10 x 1 | 250 mm | 0.2 lbs |
*For complete dimensions see tab
| Dia. x Lead mm |
ØD mm |
B mm |
L mm |
L1 mm |
L2 mm |
External Thread mm |
|---|---|---|---|---|---|---|
| 6 x 1 | 12.5 | 12 | 18 | 4.5 | 9.9 | M10 |
| 6 x 2 | 16.0 | 14 | 22 | 6.4 | 11.7 | M12 |
| 8 x 1 | 16.0 | 14 | 22 | 6.4 | 11.7 | M14 |
| 8 x 2 | 16.0 | 17 | 25 | 2.1 | 8.9 | M14 |
| 8 x 2.5 | 16.0 | 18 | 26 | 7.6 | 15.8 | M14 |
| 10 x 2 | 18.0 | 20 | 28 | 8.9 | 18.0 | M16 |
| Dia. x Lead mm |
Static Coa (kN) |
Dynamic Ca (kN) |
|---|---|---|
| 6 x 1 | 0.97 | 0.74 |
| 6 x 2 | 1.14 | 1.05 |
| 8 x 1 | 1.34 | 0.90 |
| 8 x 2 | 1.70 | 1.32 |
| 8 x 2.5 | 1.70 | 1.32 |
| 10 x 2 | 2.18 | 1.49 |
| Dia. x Lead mm |
Screw OD d1 (mm) |
Screw Root Ø d2 (mm) |
Lead Ph (mm) |
Ball Diameter Dw (mm) |
Starts x Circuits |
|---|---|---|---|---|---|
| 6 x 1 | 5.95 | 5.37 | 1 | 0.8 | 1 x 3 |
| 6 x 2 | 5.95 | 5.13 | 2 | 1.2 | 1 x 3 |
| 8 x 1 | 7.95 | 7.29 | 1 | 0.8 | 1 x 4 |
| 8 x 2 | 7.95 | 7.08 | 2 | 1.2 | 1 x 3 |
| 8 x 2.5 | 7.95 | 7.07 | 2.5 | 1.2 | 1 x 3 |
| 10 x 2 | 9.95 | 9.09 | 2 | 1.2 | 1 x 3 |
Cylindrical nuts that have external threads do not have wipers. The static and dynamic load ratings of PBC Linear ball screws were determined by the ISO 3408 standard calculations. The dynamic load rating, Ca, is the load at which 90% of properly lubricated identical ball screws will reach 1 x 106 revolutions. The static load rating, Coa, is an axial static load which will produce a permanent deformation at contact points of the steel balls to ball grooves equal to 0.01% of the ball diameter.