Bosch Rexroth Introduces New MKK and MKR Linear Modules
March 2, 2009 by Miles Budimir
Filed under Linear Guides, Uncategorized
Charlotte, NC - Rexroth has expanded its extensive range of linear modules with the new MKK hygienic modules and the MKK and MKR 12-40 miniature linear modules. MKR hygienic modules are ideal for food processing machinery and other food or packaging applications. The MKK and MKR 12-40 miniature modules have the smallest and most compact aluminum profile in the series, allowing them to solve new applications where size is a factor and performance can not be sacrificed.
MKR Hygienic Linear Modules
The new MKR hygienic option has a specially-designed aluminum profile that is smoother than standard MKR bodies to prevent build-up of liquids and foreign debris. Combined with the MKR’s proven stainless steel strip cover for the drive and guide elements, the new design allows the MKR to eliminate residual liquid in applications such as food processing machines or other washdown environments.
These new hygienic modules are precise, high-performance linear systems with compact dimensions in a ready-to-mount design. With lengths up to 12 meters and speeds to 5 m/s, the belt-driven MKR hygienic modules use precision Rexroth Ball Rail® systems for internal guidance to achieve precise positioning. For additional protection against contamination, thin dense chrome plating can be applied to many internal components. Standard peripherals include add-on parts for Rexroth servo motors, suitable regulators, and controls.
MKK and MKR 12-40 Miniature Linear Modules
The new MKK and MKR 12-40 miniature linear module option offers big performance in a small footprint to meet demanding speed and load requirements. The modules feature a rigid aluminum frame, and can be specified in either a belt-driven version for precise positioning and zero backlash, or a ballscrew-driven version to achieve travel speeds of up to 3 m/s.
MKK and MKR 12-40 miniature modules boast an excellent price-to-performance ratio and are well-suited to applications in the food and packaging, medical, material handling, semiconductor and automotive industries. They are ideal for gantry-style applications, pick-and-place, loading/unloading, assembly, positioning and inspection tasks. The miniature modules have a single-point lubrication design that reduces maintenance time and cost, and lengths can be specified from 250mm to 2,500mm depending on the drive.
Link Shaft for Belt Drive Linear Modules
February 20, 2009 by admin
Filed under Linear Actuators
Belt driven linear actuators continue to increase in popularity as designers look to mechatronic systems to move products more quickly, cleanly and efficiently. Larger and faster gantries are being built for an increasing variety of applications in diverse new fields. Pick and place devices, inspection systems, and general material handling continue to take advantage of the speeds and lengths of travel these components offer.
Increasingly, fast moving Y and Z axes create an excessive moment load on the X axis when at their full extent. The easy answer is that a dual X-X’ system must be used in tandem to support the moving inertia of the rest of the system. Connecting them is even simpler. While the initial tendency of designers is often to simply mirror the X axis, using a redundant motor and drive for the X’ axis, cost, assembly and safety issues can be addressed with a mechanical solution instead.
Cut to length from a highly straight aluminum extrusion, the backlash free SERVOMAX line shaft affords accurate synchronization and smooth operation even at high speeds across long lengths. The light weight and lateral stiffness allow for good balance and negligible inertia, while the preloaded urethane inserts ensure vibration free transmission of acceleration torque in a small profile. Based on length and torque information, a sizing report, covering critical speed, inertia, flexibility and more is generated instantly by the manufacturer.
www.rw-america.com/elastomer_couplings/line-shaft-ez2-t.php
