Renold Chain, Gears and Couplings in Qatar

Overview

Renold is where the roller chain comes from. Hans Renold bought a small textile chain maker near Manchester in 1879 and patented the bush roller chain the following year. That design is still what every roller chain in the world is built on, and Renold is the oldest transmission chain company still trading, now around 2,500 people in more than 23 countries.

Chain and bearings are ordered by the same maintenance engineer on the same day, which is why they sit together here. Petrofab quotes Renold through its supplier base.

What we supply

Transmission and conveyor chain, chain wheels, gearboxes and shaft couplings, in metric and imperial sizes.

Where it is used

Transmission chain drives the machine: conveyors, elevators, mixers, crushers, packaging lines, and any drive where a belt would slip or a gearbox would not fit. Conveyor chain carries the load itself rather than driving it, which is different work and a different chain.

The two questions that settle a chain order are the pitch and the number of strands. Pitch is the distance from one pin to the next, and a British standard chain is named by it: 08B is half an inch, 12B is three quarters, 16B is one inch. Simplex is one strand, duplex two, triplex three.

Send the number stamped on the side plate if it is still readable, or measure the pitch across ten pins and divide by ten, which is more accurate than measuring one. Tell us the length you need in metres or in links, and whether you want connecting links with it. Renold couplings and chain wheels are quoted the same way.

Ordering

Send us the Renold number with the quantity. If the marking has worn off, send the bore, the outside diameter and the width, and tell us what it runs in and how hard it works. We will identify the equivalent and quote it. Quantities and delivery are confirmed on the quotation.

The full bearing range, and every brand we carry, is on our bearings page.