|
| |
|
|
| Motion/Positioning // Linear Slides and Intermittent Motion // |
|
|
|
 |
PIC Design has added several new linear slide products to its line of precision Ball Slides. For higher load carrying capability and higher accuracy, a line of crossed roller rails and slides has been added. The Ball Slide line has been expanded to include additional sizes and PIC now offers a line of X, XY, and XYZ Positioners with Micrometers. |
|
manufacturers' catalogs for all required designs and sizes. Because all PIC linear motion systems feature.
PIC linear motion systems are available in both inch and metric sizes. They are designed from standard, in-stock, precision products, and are backed by the PIC reputation for quality and service. |
|
BALL SLIDES
Precision Ball Slides assemblies are used as guides and supports in various applications providing low friction and high accuracy for precise, linear, uniform movement. The wide range of sizes and load carrying capabilities enables the designer or engineer to select the appropriate ball slide for the particular application. Ball slides are used in many applications, such as assembly fixtures, packaging machinery, medical and optical instruments, computer disk drives and printers, copiers and other precision equipment.
The slides low friction is due to the hardened steel balls rolling between ground hardened rods, providing low starting and rolling friction for moving light and heavy loads. The high accuracy is attributed to the aluminum bodies having flat, smooth top and bottom surfaces. Riding parallel to the line of motion, they provide straight line accuracy to .0005" per inch of travel. The assembled units are preloaded to prevent side play and backlash and to ensure positional repeatability to .0002" to maintain precise, uniform, linear movement.
POSITIONERS WITH MICROMETERS
The positioners are supplied assembled and feature low friction, high accuracy and repeatability as do the ball slides. PIC positioners are supplied for multi-axis applications, "X", "XY" and "XYZ" configurations. Spring loaded micrometer drives allow precise repeatable adjustments with low friction and zero backlash. (Micrometers available in inch or metric units.) The product line includes the subminiature series which contains the smallest commercially available positioner and the standard series which is ideal for most gaging and positioning applications, such as measuring instruments and optical assemblies.
RAILS
Rails, also referred to as Crossed Roller Linear Bearing Sets, are compact precision bearings that can support and guide high loads with high accuracy and repeatability, low friction and low starting force. Each bearing consists of a pair of hardened steel ways containing 90° vee grooves and a row of alternately crossed cylindrical rollers. The hardened steel rollers are captive in a cage for easy handling and assembly and permanent alignment. These ways are installed face to face with the rollers between the vee grooves, so that the user can mount in any direction or orientation to fulfill the application without adding a whole slide to the system. Rails are sold in sets consisting of two bearings (4 way bars, 2 roller cages and end stops).
CROSSED ROLLER SLIDES
The crossed roller slides incorporate the rails to provide precise linear motion with low friction at a higher load carrying capability than ball slides. The crossed roller slides are available in either a steel or aluminum body. The steel crossed roller slides offer a high support stiffness for the load, thus resulting in a straight line accuracy of .0008" per inch of travel up to 4 inches travel and .00012" per inch of travel up to 12.5". The aluminum crossed roller slides offer low cost and lightweight body that may be necessary in weight sensitive applications. The straight line accuracy of the aluminum slide is .0001" per inch of travel.
The steel or the aluminum crossed roller slides are available in a variety of sizes for applications including precision instruments, office and communications equipment, surface and tool grinders, assembly fixtures and other applications which require precise, uniform linear motion. |
|
|
|
|
Motion/Positioning
