PLEASE NOTE:
UniSlide® B9000 Series has been discontinued.
Consider using Velmex BiSlide® as an alternative. Contact a Velmex Application Engineer to discuss.
UniSlide® B90 Series
The B90 Series UniSlide stage has a body width of 9 inches, slider length of 9 inches, carrying a 400 lbs. horizontal load. The B90 can travel up to 39″ with the 9″ slider/carriage. The B90 is ideal where a heavy-duty workhorse is required.
B90 Series UniSlides are comprised of an aluminum alloy extruded dovetail base with 60 degree opposing V-type ways. An aluminum alloy carriage that runs in the dovetail ways of the base. Lead screws are constrained and supported with steel thrust bearings and snap ring retainer. The lead screw drive nut is a tension adjustable nut made of Delrin providing low friction, and minimal backlash.
The B90 Series UniSlide is available in 3 models/styles. Seven lead screw pitches are available.
Linear UniSlide Assembly Style/Model Options
The UniSlide Series and the styles below combine to create a complete UniSlide Assembly model. Additional options and accessories can be added (See Options/Accessories). Standard style/model options for UniSlide B90 Series Assemblies include:

Free Sliding Model – The simplest UniSlide Assembly where the slider is moved by hand. This features a linear dovetail bearing for smooth motion.

Screw Drive Models – Slide movement is controlled by a lead screw. There are English and metric diameter lead screws available in 1/2″ and 14 mm. Each have different advance ratings.

Graduated Knob Models – The position of the payload is measured by combining the readings from the linear scale and engraved knob or drum dial. Measures position from 0.001″ or 0.01 mm.
There is a motorized version of the B90 Series UniSlide – MB90 Series. Other configurations and sizes are available on the other Series UniSlide Assemblies – A15, A25, A40, A60.
UniSlide Configurations
The basic linear UniSlide is a 1-axis stage. UniSlides can be combined for multiple axes in a wide range of lengths and payload capacities. See Examples for images of various multi-axis UniSlides and combinations that include other Velmex stages.

UniSlide Specifications – Manually-Operated Assemblies
Factors such as size of the motor, size of the payload, travel distance, mounting direction/plane, etc. effect the actual capability of any assembly. Please contact Velmex Application Engineers to configure a system that will meet your exact requirements.
![]() | UniSlide® B90 Series | |
| Travel Distance‡ | 3" - 39" | 7.62 – 99 cm |
| Base Length | 12" - 48" | 30.48 – 121.92 cm |
| Slider Length | 9" | 22.86 cm |
| Weight | 21 –59.75 lbs. | 9.5 – 27.10 kg. |
| Height | 3.13" | 7.95 cm |
| Width | 9" | 22.86 cm |
| Maximum Horizontal Load | 400 lbs. | 182 kg. |
| Horizontal Central Load | 400 lbs. | 182 kg. |
| Cantilevered Load | 480 lb-in | 54.2 N-m |
| Vertical Central | 100 lbs. | 45 kg. |
| Load Normal (LN)* | 140 lbs. | 63.5 kg. |
| Load Thrust (LT)* | 70 lbs. | 31.75 kg. |
| Cantilever Side (LCS)* | 120 lb-in | 13.6 N-m |
| Cantilever Inline (LCI)* | 240 lb-in | 27.11 N-m |
* Normal Operating Loads are less than the maximum.
‡ Standard travel distances available are in 3″ increments.
Repeatability
Straight line accuracy
Screw lead accuracy
Operating temperature
0.00015″ (4 microns) typical
Bow – 0.002″ per foot; Run Out – 0.001″ per foot; Twist – 1 milliradian per foot
Standard Lead Screw: 0.007″/10″ Precision Lead Screw: 0.0015″/10″ or better available. Consult factory.
0 to 180° F (-18 to 82° C)
Information on stage composition, tolerances, wear and design for specialty applications.
Lead Screws Available for B90 Series

Basic Dimensions for B90 Series UniSlide Assemblies

An array of options and accessories is available for the A60 Series UniSlide Assemblies
Adapter Plates
Options/Accessories
Motion Locks
Encoders and Encoder Readouts
Encoder Cables
T-slot Hinge
T-slot Mounting Flange
Tab 2 Remote Send Pendant
Tilt Base
| Title | Summary | File Type | Link | hf:file_type |
|---|---|---|---|---|
| B9012A-S9.stp | Free Slide, 3″ Travel | stp | stp | |
| B9012xx-S9.stp | Lead screw, basic knob and crank, 3″ Travel | stp | stp | |
| B9012xxx-S9.stp | Lead screw, graduated knob, 3″ Travel | stp | stp | |
| B9015A-S9.stp | Free Slide, 6″ Travel | stp | stp | |
| B9015xx-S9.stp | Lead screw, basic knob and crank, 6″ Travel | stp | stp | |
| B9015xxx-S9.stp | Lead screw, graduated knob, 6″ Travel | stp | stp | |
| B9018A-S9.stp | Free Slide, 9″ Travel | stp | stp | |
| B9018xx-S9.stp | Lead screw, basic knob and crank, 9″ Travel | stp | stp | |
| B9018xxx-S9.stp | Lead screw, graduated knob, 9″ Travel | stp | stp | |
| B9021A-S9.stp | Free Slide, 12″ Travel | stp | stp | |
| B9021xx-S9.stp | Lead screw, basic knob and crank, 12″ Travel | stp | stp | |
| B9021xxx-S9.stp | Lead screw, graduated knob, 12″ Travel | stp | stp | |
| B9024A-S9.stp | Free Slide, 15″ Travel | stp | stp | |
| B9024xx-S9.stp | Lead screw, basic knob and crank, 15″ Travel | stp | stp | |
| B9024xxx-S9.stp | Lead screw, graduated knob, 15″ Travel | stp | stp | |
| B9027A-S9.stp | Free Slide, 18″ Travel | stp | stp | |
| B9027xx-S9.stp | Lead screw, basic knob and crank, 18″ Travel | stp | stp | |
| B9027xxx-S9.stp | Lead screw, graduated knob, 18″ Travel | stp | stp | |
| B9030A-S9.stp | Free Slide, 21″ Travel | stp | stp | |
| B9030xx-S9.stp | Lead screw, basic knob and crank, 21″ Travel | stp | stp | |
| B9033A-S9.stp | Free Slide, 24″ Travel | stp | stp | |
| B9033xx-S9.stp | Lead screw, basic knob and crank, 24″ Travel | stp | stp | |
| B9036A-S9.stp | Free Slide, 27″ Travel | stp | stp | |
| B9036xx-S9.stp | Lead screw, basic knob and crank, 27″ Travel | stp | stp | |
| B9039A-S9.stp | Free Slide, 30″ Travel | stp | stp | |
| B9039xx-S9.stp | Lead screw, basic knob and crank, 30″ Travel | stp | stp | |
| B9042A-S9.stp | Free Slide, 33″ Travel | stp | stp | |
| B9042xx-S9.stp | Lead screw, basic knob and crank, 33″ Travel | stp | stp | |
| B9045A-S9.stp | Free Slide, 36″ Travel | stp | stp | |
| B9045xx-S9.stp | Lead screw, basic knob and crank, 36″ Travel | stp | stp | |
| B9048A-S9.stp | Free Slide, 39″ Travel | stp | stp | |
| B9048xx-S9.stp | Lead screw, basic knob and crank, 39″ Travel | stp | stp | |
| Manual UniSlide® Dimensional Drawings | Dimensional drawings for the 5 Series of Manually Operated UniSlide® Linear Stages | |||
| UniSlide Manual Spec Overview | Overview of Manual UniSlide® Assemblies | |||
| UniSlide® Users Manual | Operating and Service Manual for UniSlide® Stages |


























