Product category:
Bearings
News Release from: Brammer UK
Edited by the Engineeringtalk Editorial
Team on 09 January 2001
National distribution for revolutionary
bearing
SKF spherical roller bearings which will accommodate up to 25 per cent higher torque loadings, and provide a 300 per cent increase in service life, have been introduced by BSL
A totally new generation of SKF spherical roller bearings, that will accommodate up to 25 per cent higher torque loadings, and provide a 300 per cent increase in service life compared to equivalent standard spherical roller bearings, have been introduced by BSL, the UK's leading power transmission distributor The new bearing, designated 'Explorer', is a real breakthrough in spherical roller bearing technology
This article was originally published on Engineeringtalk on 7 Jun 2000 at 8.00am (UK)
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It provides designers with the opportunity to gain increases in product performance by adopting 'size-down' or 'power-up' principles due to the higher load ratings.
Designers can also take advantage of individual factors such as higher speeds, cooler running, lower vibration and a stiffer final design due to the lower cross-section of a downsized bearing.
Explorer bearings are dimensionally interchangeable with conventional ISO spherical roller bearings and can be used to upgrade existing designs.
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By changing to Explorer in a gearbox, for example, torque can be increased by up to 25 per cent, depending on operating conditions, while new gearbox designs can benefit from the lower bearing cross-section and higher performance to allow larger, more rigid shaft sizes to be incorporated.
The result is a stiffer design, or as an alternative, down-sizing of the whole unit can be achieved to reduce friction, lubrication, weight and cost while obtaining equal performance or higher speeds without external cooling.
As a result of studying the inter-relationship between each component within the bearing, the Explorer's development team have been able to maximise the effectiveness of lubrication and minimise the effects of friction, wear and contamination on the bearing design.
In the design, itself, SKF's well proven heavy-duty steel cages, floating guide ring and self-guiding rollers are all retained to ensure that improvements in performance are synonymous with improvements in reliability.
The thoroughness of the inter-relationship analysis meant that each bearing component was examined by the team, which even involved re-engineering right down to the micro or molecular level to reduce stress concentrations.
The crystalline micro-structure of the steel used was investigated and changed to an extremely low oxygen content in order to provide a clean homogenous structure and the geometry optimised for the rollers, cage and raceways as part of the extended development process.
This, coupled with the development of new processes of manufacture enabled SKF to ensure the ultra-high precision and quality levels required to manufacture the Explorer Series of spherical roller bearing.
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