DPA Magazine | Features - The Engineer's Trusted Source of inductry articles

You spin me right round

01/07/2019

Slewing ring bearings have been in use for many years and are often associated for rotating heavy and slow-turning or slow-oscillating loads on a horizontal platform, such as on a crane. In this article, however, dry-tech director, Robert Dumayne, focuses on the ‘Lazy Susan’ type of slewing ring bearings for fast rotary movements in confined spaces.

A bearings solution for every application

01/07/2019

Bearings manufacturer Bowman International recently launched its new range of split roller bearings, the JHB Split Bearing, through its subsidiary John Handley Bearings. Combining higher capacities than any other split bearing on the market and interchangeable parts, it has been lauded by the industry press as “the future of split bearings.” Here we take an in-depth look at some of Bowman’s most notable innovations and services.

Power supply in overhead cranes: energy chains vs. festoons

25/06/2019

Reliable, dynamic cable management is one of the greatest challenges in modern crane technology.

The ubiquitous spring deserves more attention than it’s given

03/05/2019

Choosing a spring from a catalogue may seem like an easy answer, especially if it offers the cheapest option. Not so, argues Emma Burgon, Engineering Director at William Hughes, who maintains that selecting a spring purely on grounds of cost can prove a false economy, especially when production line inefficiencies are taken into consideration.

What is bearing preload?