Micro slides feature anti-cage creep technologyEngineering360 News Desk | April 27, 2020
New miniature slides from PM were developed to meet rising demand for smaller, compact linear slides to increase output in micro-assembly machines and pick-and-place machines. The MSR miniature slide can also be used in applications for repetitive minor movements in tight spaces in combination with relatively high loads.
The MSR series is available in six sizes and is available in different lengths and stroke lengths. The series starts at a rail width of 4 mm and with a maximum stroke of 5 mm and goes up to 15 mm rail width with a maximum stroke of 112 mm. The smallest miniature slide is MSR 4 with an overall height of just 4 mm, width of 7 mm and 10 mm length with 5 mm maximum stroke length.
All sizes feature an advanced and robust anti-cage creep mechanism designed to retain the roller cage in position under the most demanding conditions, such as high accelerations and vertical mounting orientation. ACCI guarantees that the maximum stroke can always be achieved, even under the harshest environments.
The parts are manufactured out of corrosion-resistant steel. High-precision cylindrical rollers used for the bearings are arranged in a crisscross pattern so that each is oriented at a 90° angle relative to the one next to it in a stainless steel cage. This design enables the slide to support loads and moments from all directions and contributes to high stiffness. The maximum acceleration is determined at 200 m/s2 and maximum load capacity is 7.819 N.
The miniature slide table and center rail have a standard attachment hole pattern with countersunk and treaded holes. This enables the user to mount the slide easily and simply into the application. All the miniature slides are in-house preloaded by means of geometry pairing of the cylindrical rollers within tolerances of just 0.5 micron. This results in nearly frictionless motion with a high precision stroke and a smooth running behavior.