EMS - Engineering Maintenance Solutions

Rollers with end profiling set new standard

Seals & Bearings 22nd July 2019

Spherical roller bearings from Schaeffler now even more durable

•   Rollers with end profiling will be successively introduced in all 241-series spherical roller bearings with bore diameters of 500 mm and above.
•   Edge pressure caused by abrasive material wear is at least 20 per cent lower.
•   Their use in roller presses – which are primarily used as grinding mills for cement and raw materials but also find use in the mining industry – offers lots of potential.

The rise of recycled bearings

Seals & Bearings 1st April 2019

Bearings are circular, much like the economy they are used in. As more customers avoid disposing of bearings needlessly, Chris Johnson, managing director of bearing re-lubricator SMB Bearings, explains the sudden surge in popularity of reusing and recycling ball bearings through relubrication.

EXTENDING BEARING LIFE

Seals & Bearings 6th July 2015

bearing10 6 july 15 The reliability of most rotating equipment is almost inevitably linked directly to bearing life, and it is estimated bearing failure is responsible for almost 21% of these equipment failures (Bloch, 2011).

Research into bearing failures shows that just over half of these are a result of contamination of the bearing oil (Fig 1). Clearly it is therefore essential to ensure that contamination of the bearing lubricant is minimised and if possible eliminated if optimum bearing life is to be achieved thereby improving the equipment reliability (MTBF).

Eliminate 52% of bearing failures with LabTecta®66

Seals & Bearings 6th July 2015

pump 6 july 15 Save your bearings with LabTecta®66, which can reduce bearing oil contamination from 83% to 0.0003%.

LabTecta®66

Research shows that 52% of bearing failures are due to contamination of the bearing oil, which represent 20.8% of all rotating equipment failures.

LabTecta®66 is a labyrinth design bearing protection seal, which is proven to increase equipment reliability in pumps, electric motors, fans, pillow blocks, steam turbines and gearboxes.

A guide to material selection for rolling bearings

Seals & Bearings 9th April 2013

scheaffler-203 By offering a wide choice of materials and heat treatments for rolling bearings, performance and operating life can be optimised, even for the most demanding industrial applications, says Dr Steve Lacey, Engineering Manager at Schaeffler UK.

In recent years, there has been a significant increase in the demand for rolling bearings that, even under extreme operating conditions – including lubricant starvation, highly corrosive or high temperature environments – still provide a long operating life and optimum performance.

But selecting a suitable material or heat treatment process for rolling bearings often requires expert advice and guidance, normally from the manufacturer of the bearings. Selection depends on the application itself and the specific environment in which the bearings will operate. This means a number of factors require careful consideration, such as the mechanical, chemical and thermal requirements placed on the bearings, as well as lubrication conditions, particularly if the application requires dry running bearings.