applications

A Quick Guide to Choosing the Best Linear Motion Product

~ kateharden

There is a vast range of linear motion products on the market and it can be difficult to know which product to select. This article discusses the various types of products available according to their rolling element and explores their advantages, disadvantages and limitations. Finally a selection chart clearly lists each product’s characteristics to help with specifying the best linear motion product.

Some of our linear motion products are shown in the table below:

Linear Bearings, Housings, Shafts & Supports Heavy Duty Rollers (NUTR, NUKR, NNTR) Vee Bearings Motion Guidance Systems (Standard & Aluminium)
Miniature Motion Guidance Track Guidance System Combined Roller Bearings Plain Sliding Linear Bearings

What are Linear Motion Products?

 The primary purpose of linear motion products is to move something from one place to another in one direction along a straight line. Usually this is achieved using a bearing with a rolling element. Traditionally this rolling element would be a ball or roller, but these days some linear motion bearings do not incorporate a rolling element and consequently are known as ‘plain’ bearings. These plain bearings are simply plastic or ceramic bushes and are sometimes lined with PTFE or oil impregnated plastic to help reduce the sliding friction. Continue reading →

Multi Purpose Combined Roller Bearings

~ kateharden

Combined Roller Bearings were originally designed to be used in forklift truck masts. However, today they are used in a variety of applications (horizontally and vertically) and in a huge range of industries.

The smallest bearing is just 52.5mm in diameter and when used in conjunction with the corresponding steel profile, each bearing offers a load capacity of approximately 550kg. At the top end of the range the largest bearing is 390mm and has a capacity of over 30 tonnes.

The primary benefit of a Combined Roller Bearing over a standard track roller bearing is the integral side thrust roller bearing. This small roller is able to carry lateral loads and ensures free movement of the system.

To make a complete slide you simply need 2 rails and 4 bearings. The bearings can be welded directly to the structure or can be supplied pre-welded to a mounting plate and simply bolted into place. More complex, telescopic systems can be made by using additional rails and bearings to create further stages.

The application examples below show how versatile this sliding system is.

 

euro combined bearings and channels combined roller bearings forklift horizontal cantilever using combined roller bearings
Combined Horizontal / Vertical
telescopic combined roller bearings and rails telescopic combinaton bearing application i beam combi bearing cantilevered system
2 Stage Telescopic System

Being so versatile, combined roller bearings can be used in many applications including:Please click an image for more details.

  • Lifting & Handling Equipment
  • Offshore Cable & Pipe Laying
  • Specialised Vehicles
  • Packing Machines
  • Furnace Loaders
  • Agricultural Equipment

If you think you might have an application for Combined Roller Bearings, please contact our technical sales team. We have many years of experience and our team includes Engineers and Designers.