Q. What is a Slip Ring?


"A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.

A slip ring can be used in any electromechanical system that requires unrestrained, intermittent or continuous rotation while transmitting power and / or data. It can improve mechanical performance, simplify system operation and eliminate damage-prone wires dangling from movable joints.”

The BGB range of robust standard slip rings lends itself to a multitude of application speeds. Barrel and face type units use phosphor bronze rings as standard within an insulation medium of thermoset glass-reinforced DMC based on unsaturated polyester resin"

Q. Do I need a slip ring?


If you have a piece of equipment that rotates and has a requirement for electrical power or signals transferring between the rotary and stationary components of the assembly, then a slip ring would be a solution for your application.

Q. How do I specify a slip ring?


If you contact BGB we will guide you through the process of specifying the relevant requirements and properties.

Q. How big is a slip ring?


Slip rings vary in size according to the power transfer requirements and the application interface.

Q. How does a slip ring work?


A slip ring transfers electricity via sliding contacts from a stationary to a rotary side of an electro-mechanical assembly.

Q. What materials are used?


Rings are generally produced in copper alloy, whilst brush contacts are commonly copper or silver graphite. The mechanical framework and housing can be manufactured in most suitable materials, with suitable surface protection where required.

Q. How many rings do I need?


Generally one ring is required for each conductor in the supply cables used in the application. If required additional rings may be incorporated for shielding purposes.

Q. How does a slip ring fit my application?


Depending on the application and the mechanical interface, the slip ring can be manufactured to customer specification

Q. What are the limitations of a slip ring?


The slip ring generally is only limited by the space restrictions of the application.

Q. What electrical circuits can pass through a slip ring?


Electrical circuits commonly requested to pass through a slip ring are, power, bus signals, encoder signals, etc.

Q. What aspects effect the life of a slip ring assembly?


The life span of a slip ring is dependent upon the contact materials employed, the operating environment, the rotational speed, vibration etc.

Q. What maintenance is required?


Depending on the duty cycle, it is normal to inspect a slip ring annually, and if required the unit should be cleaned and inspected for condition of rings and brushes.

Q. Do BGB supply mercury slip rings?


No BGB do not supply mercury slip rings. Mercury is a poisonous chemical element we do not recommend using

Q. How else are slip rings described?


Slip rings are also sometimes described as: Rotary Joints, Collector Columns, Commutator, and Electrical Swivel, rotary electrical interfaces, metal bands, rotating connectors, electric rotary joints or collector rings to name but a few

Q. What is a FORJ?


A FORJ is an acronym for Fibre Optic Rotary Joint. A FORJ enables the transfer of optical signals

Q. How does a FORJ operate?


A FORJ enables the transfer of optical signals from a stationary component to a rotary component of an application.

Q. Does a slip ring have to rotate whilst in operation?


No a slip ring can be used whilst stationary, but this must be specified clearly.

Q. Can a slip ring be used for liquid or gas applications?


Slip rings can be designed to incorporate rotary joints used for hydraulic, pneumatic or other gaseous requirements.

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