PSM Series Differential Adjuster
PSM Series Differential Adjuster
Price range: $60.40 through $68.60
Description
Product Description
- Modular manual differential actuator
- Coarse adjustment: 0.5 mm per revolution; Fine adjustment resolution: 2.5 μm
- Brass component mountable to Ø9.5 mm, M9.5×0.5 or M14×1.0 mounting sleeves
- Optional stroke range
The PSM series differential adjusters deliver high resolution and repeatability. A lever mechanism amplifies the resolution of the high-precision fine adjustment thread for minimal axial displacement.
| Adjustment Screw | M6×0.5 |
| Fine Adjustment Stroke | 500 μm, 2.5 μm resolution |
| Coarse Adjustment Precision | 0.5 mm/rev |
| Theoretical Precision | 2.5 μm |
| Model | PSM25-A | PSM35-A |
| Dimensions | Ø16.5×70.7 mm | Ø16.5×81.2 mm |
| Coarse Adjustment Stroke | 4 mm | 11.6 mm, 14 mm (with stop ring removed) |
| Stop Ring | None | Equipped |
| Brass Mounting Diameter | Ø9.5 mm | Ø9.5 mm |
| Weight | 50.8 g | 52.8 g |
| Model | PSM25-B | PSM35-B |
| Dimensions | Ø16.5×70.7 mm | Ø16.5×81.2 mm |
| Coarse Adjustment Stroke | 2.5 mm | 5.65 mm, 8 mm (with stop ring removed) |
| Stop Ring | None | Equipped |
| Brass Mounting Thread | M9.5×0.5 | M9.5×0.5 |
| Weight | 53.9 g | 55.8 g |
| Model | PSM10-C | PSM25-C (with stop ring) | PSM35-C (with stop ring) |
| Dimensions | Ø16.5×56.2 mm | Ø16.5×70.7 mm | Ø16.5×81.2 mm |
| Coarse Adjustment Stroke | 0.95 mm | 9.65 mm, 12 mm (with stop ring removed) | 19.65 mm, 22 mm (with stop ring removed) |
| Stop Ring | None | Equipped | Equipped |
| Brass Mounting Thread | M14×1.0 | M14×1.0 | M14×1.0 |
| Weight | 41.2 g | 51.7 g | 53.5 g |
Technical Notes
The PSM series differential adjusters offer high resolution and repeatability. A lever mechanism amplifies the resolution of the high-precision fine adjustment thread to achieve minimal axial displacement. This unique design ensures uniform and smooth movement that is largely independent of load. The spherical tip guarantees single-point contact between the adjuster and the contact surface.
The differential adjuster features two internal lead screws: one drives the central spindle forward at a resolution of 0.5 mm per revolution, while the other retracts it at a precision of 0.375 mm per revolution. Thus, each full rotation of the graduated knob results in a total displacement of only 125 μm for the central spindle. The fine adjustment knob has a graduation of 2.5 μm, and the coarse adjustment pitch is 0.5 mm. (Note: For fine adjustment, the coarse adjustment mechanism must first be locked with the lock ring before operation.)
| Brass Adapter | PSM-A Type | PSM-B Type | PSM-C Type |
| Product Image | – | – | – |
| Brass Dimensions | Ø12×15 mm | Ø12.9×16 mm | Ø15.8×7 mm |
| Mounting Specification | Ø9.5 mm | M9.5×0.5 | M14×1.0 |
- Application Example: Prior to installation, lubricate the adjuster lightly and screw it into the bushing manually. Ensure no thread cross-threading occurs to prevent damage to the adjuster and bushing.
Assembly
Application Examples
Engineering Drawings
Additional information
| Weight | N/A |
|---|---|
| Model | PSM25-A, PSM35-A, PSM25-B, PSM35-B, PSM10-C, PSM25-C, PSM35-C |
