Skip to content

Ball Screw Housing Support Bearing Assemblies

September 16, 2019

As a “standard product”, Lintech offers four different types of ball screw housing support styles.

Housing Support configurations

These configurations allow the designer increased flexibility to “fine tune” the design to obtain the most suitable components for a given set of requirements. For instance, if the design requires higher speeds and/or higher rigidity, you can weigh out the housing configuration differences, as well as every other ball screw design choice to achieve the best performance trade-off combination.

For assistance on determining the best design trade-off for your application, contact Lintech.

Advertisements

IP30 Screw Driven Linear Table

September 4, 2019

The Lintech 610 series screw driven linear ENCLOSED slides are designed to maximize performance while minimizing physical size and cost. These linear positioning systems use a low friction, preloaded, recirculating linear ball bearing system, which ride precision ground linear rail guides. The linear rails are mounted to an extruded aluminum base, which offers rigid support over the entire travel of the table’s carriage. The load is mounted to a precision machined aluminum carriage, which has threaded stainless steel inserts for high strength and wear life. There are 38 different acme and ball screw options that offer high efficiencies and long life at an economical price. These linear tables are designed to allow for numerous options. They include EOT and home switches, linear and rotary encoders, power-off electric brakes, motor wrap packages, and versatile mounting brackets for multiple axis applications.

NEW 610 Series Linear Screw Driven Positioning Slides

Lintech can build standard positioning systems in 2-3 weeks. Customs and/or multiple axis systems are very common and not long lead-time solutions.

Lintech ARC Linear Guides

August 2, 2019

Lintech offers a wide variety of profile rail linear guides. Many different options to compete, and dimensionally match, lots of other manufacturers guides. The ARC series is another one of the models which falls into that category. The market niche Lintech has earned a position in is low cost and availability while still offering quality and performance. There is no claim to be an innovation leader. So many of the actual linear guide “applications” do not even begin to test linear guide performance limits anyway. So, it comes back to proper sizing. If you can offer a good product which is used properly, while also offering a great price and quick deliveries, you’ve got something!

P7_ARC

ARC Linear Guide

Shaft Assemblies (TRSA) & Carriage Assemblies (TRCA)

July 15, 2019

Lintech provides both single and dual, precision round rail steel shaft assemblies. These shaft assemblies have a precision machined 6061-T6 aluminum black anodized base that runs the entire length of the shaft which not only supports the user load as it moves along the shaft, but the support also has pre-drilled base mounting holes that allow for easy customer mounting to a machines’ frame. The shaft straightness specifications 0.001/0.002 in/ft. cumulative. Shaft diameters are available from 0.500 to 2.0 inches in 6 to 192-inch standard lengths. Some standard sizes can be shipped in less than 2 days, while any length can be provided as a custom in as little as 1 week.

P_TRSA

The TRCA series is a pre-engineered carriage assembly which has either SLBO or DLBO pillow blocks mounted to a 6061-T6 black anodized precision machined aluminum plate. The pillow blocks are doweled to the carriage plate and are pre-aligned to match Lintech’s TRSA series shaft assemblies. The use of a TRCA carriage assembly and a TRSA shaft assembly in a mechanical positioning application greatly reduces the time-consuming process of mounting & aligning two shafts and pillow blocks. Each carriage surface is precision machined which allows for accurate mounting of customer loads. Also, carriage assemblies are available with pre-machined stainless-steel inserts, which allows easy mounting of customer loads to the carriage plate. Carriages are provided with pillow blocks for shaft diameters from ½ to 2 inches and come in standard carriage lengths from 6 to 30 inches.

P_TRCA

 

Miniature Linear Guides

July 1, 2019

MR

The MR series is a miniature 2 row re-circulating profile rail linear guide bearing. The block and LM linear profile rail are made from 440c stainless steel and there is an option for seals on both ends of the block and on the bottom of the block. There is also an option for a self-lubrication block and another for a reinforced block seal which allows the block to move at a higher rate of speed. Three different accuracy grades are available – N grade, H grade, and P grade. The blocks are available in either a standard or long length, while the rail width is available in a normal or wide version. These various sizes allow for different block load capacities.

Screw driven tables – Maximum Speeds

June 14, 2019

Screw driven linear motion tables secure the screw at each end with different types of end supports. The screw is also held in place where it is driving the carriage. As high rotational speeds reach the natural frequency of the screw, they cause it to vibrate and whip. Every linear table will have a maximum safe operating speed which is dependent upon the screw diameter, lead and length. It is also impacted by the ball screw supports.

Below is an example of a group of Lintech tables reflecting maximum speeds. The foot note at the bottom also reflects the basic factors affecting speed potential.

Ball Screw Max Speeds

If we are not talking about a standard Lintech table, Lintech also offers a tool to help determine the screw maximum(critical) speed. On the right-hand side of the Lintech home page there is an area with a link called “sizing apps”. On that page, there is a link to “critical speed”. There you will find a calculator that enables you to plug-in numbers for screw variations and come up with the maximum safe speed.

Critical Speed

For further information on screw speeds or any other design criteria, please contact Lintech.

 

Lintech

June 3, 2019

mechanical motion

%d bloggers like this: