BMG’s range of Nord-Lock bolt securing systems includes the X-series washers, designed to secure bolted joints exposed to severe vibration and dynamic loads. The wedge-effect design prevents spontaneous bolt loosening and the system’s integrated spring effect compensates for the loss of preload due to slackening. Each washer pair has cams on one side and radial teeth on the opposite side to secure the bolted joint with tension, rather than friction. The conical shape of these washers creates an elastic reserve in the bolted joint to compensate for the loss of preload and prevent slackening.
Advances in polymers and sandwich composite technology have the advantage of strength to weight ratio and corrosion resistant properties that make applications lighter, without losing strength; but these materials are softer than metal materials previously used and make slackening an additional challenge. The multifunctional wedge-locking concept of the X-series combats these problems.
Surface treatments, which are common for corrosion protection, can also lead to slackening as the bolt sinks into the treated surface after tightening. Even a thin millimetre surface would normally put bolts at risk, but with the compensating spring of the X-series, slackening is prevented. The combined tension and spring action combats the effects of surface treatments, thermal cycling and vibration.
Independent tests show this series performs better than conventional washers when compensating slackening in static conditions and in preventing rotation of the fastener when the joint is exposed to vibration in the dynamic phase. These are the only washers currently available that can secure bolts from both critical loosening factors – spontaneous loosening and slackening – at once.
Industrial gear units for mixing and agitating processes Bearing Man Group T/A BMG
Electrical switching & drive systems & components
Nord Drive Systems encompass modular drive configurations that ensure optimum performance of mechanical speed control for specific applications in almost every industry.
Read more...Bearing failure analysis is a perfect solution for Tongaat Hulett SKF South Africa
Shaft power components
A collaborative bearing failure analysis conducted by SKF and Authorised Distributor, Bearings Services Durban at one of South Africa’s leading sugar refinery plants in KwaZulu-Natal provided tremendous value for the customer.
Read more...Heavy-duty V-belts for aggressive conditions Bearing Man Group T/A BMG
Shaft power components
BMG’s specialised Gates belting range includes Predator V-belts, engineered for optimal performance in Africa’s harshest conditions.
Read more...Vibration monitoring in three axes with IO-Link ifm - South Africa
Shaft power components
Machine vibrations are important indicators when it comes to assessing the current condition of a machine. Damage to rolling element bearings and other machine components can be detected at an early stage before costly machine downtime occurs.
Read more...BMG powers up at Nampo 2025 Bearing Man Group T/A BMG
News & events
The BMG team was highly prominent at this year’s Nampo agricultural show, held near Bothaville recently. This prestigious event, which is one of the largest agricultural exhibitions in the southern hemisphere, is a highlight for manufacturers and suppliers of farming equipment, as well as for farmers, families and the entire community.
Read more...New generation low power frequency inverters Bearing Man Group T/A BMG
Electrical switching & drive systems & components
New to BMG’s electromechanical range are energy-efficient Synergy PI150 series frequency inverters, which have been designed for efficient use in many applications.
Read more...Motion technology for all types of automation Bearing Man Group T/A BMG
News & events Electrical switching & drive systems & components
BMG has been appointed by The Timken Company as a distributor in southern Africa for the Rollon linear motion guidance system.
Read more...Efficient maintenance counts Bearing Man Group T/A BMG
Shaft power components
BMG’s total plant management solutions encompass a technical advisory service for maintenance programmes that includes correct chain and sprocket selection, which is a critical factor in any power transmission system.
Read more...Optimise your plant assets SKF South Africa
Shaft power components
The SKF Rotating Equipment Performance Centre provides anyone from anywhere with easy access to a comprehensive suite of advanced condition monitoring, analytical and diagnostic solutions.
Read more...Hydraulic pumps deliver high flow, convenience and precision Bearing Man Group T/A BMG
Hydraulic systems & components
BMG’s range of high-performance hydraulic electric Enerpac E-pulse pumps is critical to all 700 bar operating hydraulic systems. These portable E-pulse pumps have intelligent auto-cycle functionality and an efficient power-to-weight ratio to ensure dependable operation and high productivity in challenging industrial applications.
printer friendly version